20 points each!!! Heather has 2 less than 5 times the amount of shoes that Donna has, Gina has 1 more than 2 times
amount of shoes that Donna has. Let x represents how many shoe Donna has.
a. Write an expression that represents how many more pairs of shoes Heather has than Gina.
b. Simplify the expression:
c. How many more pairs of shoes does Heather have is Donna has 14 pairs of shoes?
Answers
Answer:
A. (5x - 2) - (2x +1)
B. x -1
C. 68
Step-by-step explanation:
Heather = 5 times Donna -2 H = 5D - 2
Gina = 2 times Donna + 1 G = 2D + 1
Plug in D for X and you get
H = 5x -2
G = 2x + 1
If Heather's expression is 5x -2 and Gina's expression is 2x + 1 then to show how many more Heather has than Gina. You have to subtract Gina from Heather.
(5x - 2) - (2x +1)
Now to simplify it, you just combine all the like terms.
5x - 2 - 2x -1 = 3x - 3 and then you can simply this further by dividing all terms by 3. x - 1
To solve how many Heather has if Donna has 14. You substitute 14 for x in Heather's equation. 5 (14) -2 = 70 - 2 = 68
Related Questions
Me and my friend really don't understand this. If anyone can help within 5 minutes, it'd help a lot.
Thanks :)
Answers
Answer:
the ratio is 18:81
Step-by-step explanation:
Okay so when a question is asking for a ratio it is basically asking a number compared to another:
So if you had 14 green frosted cupcakes and 8 blue frosted cupcakes what is the ratio of total frosted cupcakes to blue cupcakes:
the answer would be 22:8
Because you are trying to compare the total number of cupcakes to the blue cupcakes.
So back to your equation it wants to know the ratio between empty spots and the total number of parking spaces
Since we know that 63 of the spots have cars and 18 spots are empty we are going to add 63 and 18 together to get the total amount of parking spaces:
18 + 63 = 81
And since they want to know the empty spots compared to the total number of parking spaces we are going to be putting 18:81.
Hope this helped you!!!
Answer:
18:81
Step-by-step explanation:
The dimensions for the rectangle marked 'B' are _____ centimeters and _____ centimeters.
8, 12
3, 8
3, 5
Answers
Answer: a. 8, 12
Step-by-step explanation:
Basing on the picture above, you can readily determine the dimension of the rectangle B.
Its width is 12 cm and its length is 8cm.
solve for z: -21 = z - (-6 - 2z)
Answers
Answer:
z = -9
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Algebra I
Terms/Coefficients/DegreesStep-by-step explanation:
Step 1: Define
-21 = z - (-6 - 2z)
Step 2: Solve for z
Distribute negative: -21 = z + 6 + 2zCombine like terms: -21 = 3z + 6Isolate z term: -27 = 3zIsolate z: -9 = zRewrite: z = -9Answer:
Step-by-step explanation
-21-6=2z+z
Or,-27=3z
Or,z=-9
A pan balance has 3 cubes on one pan and 11 cubes on the other pan. Lucy thinks she should add 7, 8, 9, or 10 cubes to make the pans balance. How can you use the equation 3 + c = 11 to find the number of cubes Lucy should add?
Answers
Answer:
8
Step-by-step explanation:
11-3=c
c=8
The number of cubes Lucy should add is 8.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Given that, a pan balance has 3 cubes on one pan and 11 cubes on the other pan.
The equation to represent the situation is 3+c=11
The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.
Now, c=11-3
c=8
Therefore, the number of cubes Lucy should add is 8.
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PLEASE HELP WILL MARK BRAINLIEST YOU DONT HAVE TO EXPLAIN
Answers
Answer:
the second option
Step-by-step explanation:
what does "a" equal in this problem? 8= 2^a
Answers
Answer:
3
Step-by-step explanation:
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA this is extra cedit in my class and i need it, can anyone help me out??
Answers
Explanation
She gets 11 for every hour but it doesn’t say how many hours so we put a variable ( in this case x ) so we have 11x and she revived $6 extra since it was received and not taken away we add 11x +6 and since it’s an equation we put 11x +6 = $39
For extra help x is equal to 3
Answer:
The answer is A 11x+6=39
Step-by-step explanation:
Which expression is equivalent to 4s + 3 - 3 - s
A. 3s + 6
B. 4s + 0
C. 3s
D. 3s + 1
Answers
Answer:
C. 3s
Step-by-step explanation:
MR. ARCEO TAKES A TAXI FROM THE AIRPORT TO A HOTEL. THE TAXI CHARGES $2.50 INITIAL CHARGE PLUS $2.65 PER MILE. WHICH EQUATION CAN BE USED TO FIND Y, THE TOTAL COST OF THE TRIP, IF X REPRESENTS THE NUMBER OF MILES OF THE TRIP?
Answers
step by step explanation:
2.65 is how much for each mile, and the variable, x, represents the number of miles of the trip. so, we would do 2.65x to find out how much money you have to pay for the amounts of mile.
next, you would have to add the initial fee, which is 2.50. so 2.65x+2.50.
lastly, y represents the total cost of the trip. so, 2.65x + 2.50 = y
1). A jar navy beams and cranberry beans in a ratio of 1:11, and 100 of the beans are navy. How many in total are there in the jar ?
2). A jar contains 720 beans. Of them, 240 are navy beans and the rest are Lima beans. What is the ratio of navy beans to all the beans ?
Plzzzz help
Answers
you have to steaoStep-by-step explanation:
vvvvvvvvvdj
What is the area of the circle? Round your answer to the nearest tenth of a square inch.
Answers
pi * r^2
I'LL GIVE BRAINLIEST I REALLY NEED HELP WITH THESE QUESTIONS, DUE TODAY!
PLEASE WORK OUT I NEED TO SHOW MY WORK PLEASE WORK OUT PLEASSEEE!
1. A group of students went to the movie theater.
Eighteen of the students bought popcorn.
The other 60% of the students bought candy.
How many students were in the group?
2.There are 21,000 fans at a football game cheering for the home team. The other 40% of the total people in attendance are cheering for the away team. How many people are in attendance at the game?
3.Ashley sees a book bag on sale in a store for $22. This is 20% off the original price. What was the original price of the book bag?
Answers
So the other 40% of students is 10 students. In total there are 28 students
2. 21,000 - 40% = 12,600
There are 33,600 people in attendance.
3. $26.40 is the original price
NUMBER 1
If 18 people is 40% that means the we need to start taking 40% off of numbers
40% of 20 is 12
40% of 25 is 15
40% of 30 is 18
So the answer is 30
NUMBER 2
If 21,000 people is 60% that means 20% is 7,000 people and 7,000x5=35,000 so there is a total of 35,000 people at the game
NUMBER 3
You should start taking 20% off of numbers.
20% of 25 is 20 too low so we need to go higher
20% of 26 is 20.8 still too low so lets keep going
20% of 27 is 21.60 closer but too low
20% of 28 is 22.40 which is too high lets go back since 27 is too low and 28 is too high lets start in between
20% of 27.5 is 22.00
So the answer is $27.5.
I will mark best answer
Answers
Answer:
the ans is 5
Step-by-step explanation:
2j+5=3+2j+2 cancel equal terms which is 2j
so what we have left is
5=3+2
5=5
so 5 is the ans
Answer: infinity many solutions
Step-by-step explanation:
2j + 5 = 3 + 2j + 2
Combine numbers in the right side
2j + 5 = 2j + 5
Minus the smallest j from both side in this case u get rid of both j’s which mean -2j
5 = 5
Divide by 1 or -5
Which mean we get 5 = 5 or 0 = 0
A family of 12 went to the local Italian restaurant for dinner. Every family member
ordered a drink and meal, 4 ordered an appetizer, and 8 people ordered cake for
dessert. Write an Expression
Your answer
Answers
Answer:
4a + 8d = 12
I hope this helps you
On a coordinate plane, lockers is 5 units to the left and 3.5 units up. Water fountain is 2.5 units to the left and 3 units up. Bleachers is 1.5 units to the right and 2 units up. Exit is 3 units to the left and 2.5 units down. Court is 2.5 units down. Office is 3.5 units to the right and 5 units down.
This coordinate plane shows the floor plan of the gym at Sunnydale High School. What is located at (–2.5, 3.0)?
bleachers
exit
lockers
water fountain
Answers
Answer:
it's d water fountain
Step-by-step explanation:
hope this helps edge 2021 Jan 08
Answer:
The answer is DDDD Have a good day :D
Step-by-step explanation:
Please answer if you know the answer.
Find x and give reasons.
Answers
A computer store buys a computer system at a cost of 463.20$. The selling price was first at $772, but then the store advertised 40% a markdown on the system.Find the current sale price.
Answers
$243.6
Step-by-step explanation:
Markdown= Selling price × markdown rate
= 812×30%
=812×0.3
=243.6
The current sale price is if A computer store buys a computer system at a cost of $463.20. The selling price was first at $772, but then the store advertised a 40% markdown on the system is $463.2.
What is the selling price?The amount a buyer pays for a good or service is known as the selling price. It may differ based on the price that buyers are prepared to pay, the seller's acceptance threshold, and how competitive the price is in relation to those of other companies in the market.
Given:
The cost price = $463.20,
The initial selling price = $772,
We know that Markdown= Selling price × markdown rate
Markdown = 772 × 40%
Markdown = 772 × 0.4
Markdown = $308.8
So new selling price = The initial selling price - markdown price
Current selling price = 772 - 308.8
Current selling price = $463.2
Therefore, the current sale price is if A computer store buys a computer system at a cost of $463.20. The selling price was first at $772, but then the store advertised a 40% markdown on the system is $463.2.
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What is wrong with this equation 7/9-8/9=1/9
Answers
Answer:
the answer would be -1/9
because you're subtracting 8/9 from 7/9, not the other way around.
Step-by-step explanation:
Answer:
see below
Step-by-step explanation:
7/9-8/9=1/9
We have a common denominator
( 7-8) 1
--------- = ----
9 9
7 -8 is equal to -1 not 1
The answer should be -1/9 not 1/9
Suppose a wristband has a circumference of 7.5 inches. What is the radius of the wristband to the nearest hundredth of an inch?
Press enter to interact with the item, and press tab button or down arrow until reaching the Submit button once the item is selected
A.4.78 inches
B.1.19 inches
C.2.39 inches
D.23.55 inches
Hint: C = πd where C is the circumference of a circle, π is about 3.14, and d is diameter
d = 2r where d is the diameter of a circle and r is the radius.
Answers
hiiiiiiii please help and tysm =v=
Answers
Hey everyone i'm here with another question dont worry its easy
so can you help me? :]
Answers
Answer:
5/10 or 1/2
Explination:
finding the square units of triangle. how would i find this?
Answers
Answer:
616
Step-by-step explanation:
multiply them each number
Answer:
product of the base the and height divided by 2
14*4/11
=28
Step-by-step explanation:
Can someone help me I’ll give “best answer”
Answers
Answer:
first 1 is x=5 second one is x=3 and third one is x=8
Step-by-step explanation:
Did this assignment before
The scatterplot below shows the relationship between the number of gallons of gasoline in the tanks of 14 cars, and the maximum number of miles the cars can be driven on the given amount of gasoline.
Gasoline
A graph has gallons in gas tank on the x-axis and maximum miles on the y-axis. A line goes through points (9, 280) and (12, 360).
Based on the data collected, which combination of gallons in the gas tank and maximum number of miles seems most likely to be possible?
I DONT KNOW HOW TO INSERT A PICTURE BUT PLZ HELP will MARK AS BRAINLIST!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
How u insert a image=When u ask a question there should be a paperclip looking thing click that and you can insert a image
B.9 gallons in the gas tank and 280 miles.
From the given figure we see that the line of best fit passes through the point (13,400) and (17,520)
We know that the equation of a line passing through two point (a,b) and (c,d) is calculated by using the formula
y - b = d-b/c-a x (x-a)
Here we have:
(a,b)=(13,400) and (c,d)=(17,520)
Hence, the equation of line of best fit is: y - 400 = 520 - 400/17-3 x (x - 13)
y-400=120/4 x (x-13)
y=400=30x(x-13)
y-400=30x-390
y=30x-390+400
If u want to check your answers
0 gallons in the gas tank and 20 miles
when x=0 we have:
y=10≠20
Hence, option: A is incorrect.
B)
9 gallons in the gas tank and 280 miles .
when x=9 we have:
y=30×9+10
y=280
Hence, option: B is correct.
C)
11 gallons in the gas tank and 360 miles
when x=11; we have:
y=30×11+10
y=340≠360
Hence, option: C is incorrect.
D)
19 gallons in the gas tank and 520 miles
when x=19; we have:
y=30×19+10
y=580≠520
Hence, option: D is incorrect.
A $1,500 savings bond earns simple interest at the rate of 5% each year. The interest is paid at the end of every month. How much interest will the bond have earned after 4 months?
For Math test due in 14 minutes!!
Answers
Answer:
300
Step-by-step explanation:
5 percent * 6000
(5:100)* 6000
(5* 6000):100
30000:100 = 300
Plz help quickly i need this by today at 9 or I'm grounded. if the doc doesn't work, use the picture i put with it. Or just use the picture at first. 16 points. 24 if brainliest and i will give it to the first person with correct answers. I NEED ALL ANSWERS AND PLZ DONT ANSWER FOR THE POINTS I WILL REPORT YOU.
Answers
Answer:
Part a: 123
Part b: C
1. F(x)=4(2)1
2. F(x)= -4(2)1
3. F(x)=21
4. F(x)=-21
Last is B
Step-by-step explanation: hope this help
help this is 7th grade mth
Answers
Answer:
y^8 goes to the last one
y^6 goes to the third one
y^5 goes to the second one
then the last one go to the first one
Answer:
(y)^-2 = 1/y^2, (y^3)^2 = y^6, y^8 -:- y^3 = y^5, and y^4 x y^4 = y^8
Step-by-step explanation:
When you divide y^8 -:- y^3, you subtract ^8-^3 = ^5, so its y^8 -:- y^3 = y^5
When you multiply y^4 x y^4, you add ^4 + ^4 = ^8, so it is y^4 x y^4 = y^8
When you multiply (y^3)^2, you multiply ^3 x ^2 = ^6, so its (y^3)^2 = y^6
And when you have a negative exponent,(^-2) you have to make it positive, so it would be y^-2 = 1/y^2
please help ill give brainliest ok so the open circle lines are like im pretty sure where u put it and what direction its like the number you put it on is not a solution so where do I put the line and what direction does it go in and which line do I put pleaseee helps theres like 2 more questions
Answers
Answer:
y ≤ 6
Step-by-step explanation:
First, let's simplify the inequality.
1/2y ≤ 3 (Given)
y ≤ 6 (Divide by 1/2)
You will need a shaded dot on the point positive 6 going to the left.
The Mackinac Bridge in Michigan is the third-longest suspension bridge in the United States.
a. How high above the water is the roadway in meters? Round to the nearest hundredth.
The roadway is about ____ meters above the water.
Question 2
b. The bridge has a length of 26,372 feet. What is the length in kilometers? Round to the nearest hundredth.
The length of the bridge is about ____ kilometers.
Answers
b:8.04 km
The roadway is about 60.66 meters above the water.
The length of the bridge is about 8.04 kilometers.
What is unit conversion?It is the conversion of one unit to another unit with its standard conversion.
Example:
1 hour = 60 minutes
1 km = 1000 m
We have,
The length of the roadway above the water = 199 ft
1 ft = 0.3048 m
Multiply 199 on both sides.
199 ft = 60.66 m
The bridge has a length of 26,372 feet.
1 ft = 0.0003048
Multiply 26372 on both sides.
26372 ft = 26372 x 0.0003048
26372 ft = 8.04 km
Thus,
The roadway in meters is about 60.66 meters above the water.
The length of the bridge in km is about 8.04 kilometers.
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what is the circumference of this circle? (Use C = [tex]\pi[/tex]d; [tex]\pi[/tex] = 3.14.)
giving 20 points to the person who answers! no need to show your work, thank you.