(Only the top question!) 100 points!
Answer: 5,733.6
Step-by-step explanation:
337.8 x 17 = 5,742.6
5,742.6 - 9 = 5,733.6
Did I do it right or is it wrong?
Answer:
The answer is 5733.6
Step-by-step explanation:
Samuel has a collection of toy cars. His favorites are the 27 red ones, which make up 60% percent of his collection.
How many toy cars does Samuel have?
Answer:
there for the answer is C=45
Step-by-step explanation:
The 27 red cars make up 60% of the total collection, here is the equation
to be solved:
27 = 60% of C C is the total cars in the collection
27 = .60 C
27 / .60 = C
45 = C
Consider this system of equations.
p = 2n
p - 5 = 1.5n
What value of n makes the system of equations true.
Explain how you got your answer.
Answer: n=10
Step-by-step explanation:
p=2n
p-5=1.5n
- replace 2n in the 2nd equation for p
2n-5=1.5n
2n=1.5n=5
2n-1.5n=5
0.5n=5
n=10
What's Ali's average speed on her walk to school if she walks halfway at 2mph and runs the rest of the way at 7mph?
Answer:
s = 28/9
Step-by-step explanation:
d/(7 x 2) + d/(2 x 2) = d/s
d/14 + d/4 = d/s
18d/56 = d/s
18/56 = 1/s
s = 28/9
The average speed is 28/9.
What is Average speed?Average speed is the mean value of the speed of a body over a period of time. The formula for average speed is needed since the speed of a moving body is not constant and varies across a period of time. Even with varying speed, the values of total time and the total distance covered can be used, and with the help of the formula for average speed, we can find a single value to represent the entire motion.
Example
Using the average speed formula, find the average speed of Sam, who covers the first 200 kilometers in 4 hours and the next 160 kilometers in another 4 hours.
To find the average speed we need the total distance and the total time.
Total distance covered by Sam = 200Km + 160 km = 360 km
Total time taken by Sam = 4 hour + 4 hour = 8 hour
Average Speed = Total distance covered ÷ Total time taken
Average Speed = 360 ÷ 8 = 45km/hr
The average speed of a body is equal to the total distance covered, divided by the total time taken. The formula for average speed is given as:
Average Speed Formula:
Average Speed = Total distance covered ÷ Total time taken
Given:
halfway at 2mph and runs the rest of the way at 7mph
d/(7 x 2) + d/(2 x 2) = d/s
d/14 + d/4 = d/s
18d/56 = d/s
18/56 = 1/s
s = 28/9 mph
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What is 25x²-4. What are the factors.
Answer:
(5x-2)(5x+2)
Step-by-step explanation:
Rewrite 25x2 25 x 2 as (5x)2 ( 5 x ) 2 .
Rewrite 4 as 22 .
Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b) a 2 - b 2 = ( a + b ) ( a - b ) where a=5x a = 5 x and b=2 .
The equation y=34.99x represents the total amount of money (y) that the Geocove waterpark will collect if they charge $34.99 per adult (x) for admission to their waterpark.
Name the y-intercept of this line and interpret what it means in the context of admission to the waterpark.
Answer:
The y-intercept is where the line crosses the y-axis on the graph also where x=0. In this situation the y-value is however much money the waterpark will make depending on how many adult tickets sold.
Step-by-step explanation:
What happens to a 44-degree angle if you rotate it 90 degrees counterclockwise?
Answer:
We will have a new angle \theta_{new}=143^{\circ}θ
new
=143
∘
Step-by-step explanation:
If we rotate this angle 90 degrees counterclockwise we just need to add both angles, which means:
\theta_{new}=44^{\circ} + 99^{\circ}=143^{\circ}θ
new
=44
∘
+99
∘
=143
∘
Therefore, we will have a new angle \theta_{new}=143^{\circ}θ
new
=143
∘
I hope it helps you!
Please help me out questions on pdf
Question 1: x=12.5
6x+4x+2x+30=180
(One full line forming a semi circle would equal to 180 degrees all the angles given would therefore equal up to that value)
Add like terms to simplify;
12x+30=180
Use inverse operations to isolate the variable!
180-30=150
150/12=12.5
Check ur work!
6(12.5)+4(12.5)+2(12.5)+30=180
75+50+25+30=180
180=180
Question 2: Angle EAF = 25 degrees
Since x equals 12.5
and the equation given to represent the angle is 2x
2(12.5)=25
Question 3: Angle DAE= 50 degrees
x=12.5
Angle DAE=4x
4(12.5) = 50
Question 4: Angle CAD= 75 degrees
x= 12.5
Angle CAD= 6x
6(12.5) = 75
(if any are incorrect i apologize beforehand)
The Smith family is building a deck that is 200 square feet in area. What are the
possible lengths and widths the deck could have? Which length and width would be the best choice for the deck?
Answer:
10 ft x 20ft
2 ft x 100ft
40ft x 50ft
1 ft x 200 ft
4ft x 50ft
5ft x 40ft
8ft x 25ft
Step-by-step explanation:
True or False: The following equation has 'no solutions'.
Answer:
true
Step-by-step explanation:
Help me plssssssssss
some people are sending links to answers so pls dont open them. it will give you a virus.
Here’s 50 points, question is in the attachment below!
They want to use the numbers 0-9
Count the number of timers a color shos on the wheel and assign 1 number for each time the color shows:
Blue shows 4 times so you would assign blue the numbers: 0,1,2,and 3
There are 3 yellows so you would assign that 4, 5, and 6
There are 2 reds so , 7 and 8
and 1 green would be 9
Answer is D.
PLEASE HELPPP
Two runners are training for their next competitions. Each runner is able to run a certain
distance in proportion to the time. The table on the left displays the distance Runner A
can run in relation to the time. Meanwhile, the graph on the right displays the distance
Runner B can run in relation to time.
What are the unit rates for the two runners? Which runner can run faster?
Tomas wrote the beginning of an equation, 4/5x-8=. Complete the equation and match it to its corresponding number of solutions.
Answer:
I Have shown how to in the image below
Step-by-step explanation:
Explain what πr² and h represent in terms of the cylinder. Then explain how this information is used to find the formula for the volume of a half sphere, 2/3 • πr²• r. Then explain how you use this formula to get the formula 4/3 πr³ for the volume of a sphere.
Answer:
The formula that is used to determine the volume of the cylinder in terms of pi is V = πr2h cubic units where, "V", "r" and "h" are the volume, radius, and height of the cylinder. This formula of volume of the cylinder also shows its dependence on the radius and height of the cylinder.
Step-by-step explanation:
4x+32=12x-8 please help me
Answer:
x=5
Step-by-step explanation:
<=>12x-4x=32+8<=>8x=40<=>x=40/8=5
what is 3/6 x 1/6 in simplified form
Answer:
1/12
Step-by-step explanation:
Answer:
1/12 DECIMAL FORM 0.083 REPEATING
Step-by-step explanation:
THAT IS JUST WHAT I GOT
(1/3)^2+3^2 i have been stuck on it
The first three terms of an arithmetic sequence are as follows.
Answer:
16,20
Step-by-step explanation:
As shown, you add four by each.
4+4=8
8+4=12
So, 12+4=16
16+4=20
Answer:
16 and 20
Step-by-step explanation:
In the arithmetic squence, we can tell that 4 is being added to each term.
Thus, we obtain the following rule:
4x [Where "x" is the xth term]To find the next two terms in the sequence, we need to determine the fourth and fifth term of the sequence. Let us substitute the "4" and "5" in the rule to determe the next two terms in the sequence.
Determining the 4th term of the sequence:
⇒ 4x
⇒ 4(4)
⇒ 16
Determining the 5th term of the sequence:
⇒ 4x
⇒ 4(5)
⇒ 20
Thus, the next two terms are 16 and 20.
please help me with this
Answer ASAP! but only if you know 100%, and whoever gets it right can have brainliest
use 3.14 for pi!
Answer:
Circumference: 153.86
Area: 43.96
Step-by-step explanation:
Circumference: 2(3.14)r
Area: 3.14(r^2)
Lets find the Circumference first :)
2(3.14)7
(6.28)7
43.96
Now lets find the area!
3.14(7^2)
3.14(49)
153.86
Have an amazing day!!
Please rate and mark brainliest!!
Answer:
[tex]beinggreat78~here~to~help.[/tex]
Circumference: 44(round to nearest 10)
Area: 154(round to nearest ten)
To do this problem, let's start with circumference, because we must know that before finding area.
[tex]C=2\pi r=2*\pi *7~rounds~to~43.9823[/tex]
Next, find the area by using the circumference. This time, we will use the exact numbers.
[tex]A=\pi r2\\C=2\pi r[/tex]
Now, solve for area.
[tex]A=\frac{ C^2}{4\pi }=\frac{43.98^2}{4 * \pi } ~rounds~to~153.93806[/tex]
With that information, the problem has been solved.
I'm stuck T^T please help me!
Answer:
a. 52%
b. 56%
Step-by-step explanation:
a. 43+87=130
130/250×100
=52
b. 87+53=140
140/250×100
=56%
help a girl out it’s 7th grade math
Step-by-step explanation:
height(h) = 12
slant height (l) = 15
side(a) = 18
TSA of pyramid = a^2 + 2al
= (18)^2 + 2* 18*15
= 864m^2
PLS ILL HELP ILL GIVE YOU BRAINLIEST
The solution is, the required probability is 15/36 .
What is probability?Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
here, we have,
from the given table, we get,
total number of sample space is 6 x6 = 36.
now, we get, that, the number of getting sum less than 7 is 15
we have,
probability = no. of the event/ no. of total outcome
= 15/36
we get this,
because if you solve everything below 7 that would give you 15 problems and there is 36 outcomes bc 6 x6 is 36.
Hence, The solution is, the required probability is 15/36 .
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George started a coin collection. His dad gave him 75 coins. Each month he will add 20 coins to the collection. Which equation can be used to find y, the total number of coins in George's collection after x months?
A y= 75x + 20
B y = 20x + 75
C y = 75x - 20
D y=20x - 75
option B
hope it helps...!!!
Answer:
Option B!
Step-by-step explanation:
x = amount of months.
Each month = + 20 coins.
*Each month x amount of months = y*
so 20x + 75(Coins dad gave)
Answer the following about estimating 5,392/7.
Answer:
5600/7
It is an overestimate
How many acres are left for home sites. David runs [tex]\frac{1}{2}[/tex] of a [tex]1\frac{1}{2}[/tex] mile relay race. How far does he run?
On June 1st, the value of an investment was $1400. During the month of June, the value decreased by 15%. During the month of July, the value increased by 10%. What was the value of the investment on August 1st?
Answer:
1330.
Step-by-step explanation:
15% - 10% = 5%
5% of 1400 is 70.
$1400 - $70 = 1330.
The investment had decreased in value.
3. Classify each triangle by its angles and its sides
Gina says that she can find the length of the diagonal, c, of the rectangular prism by using the Pythagorean theorem twice.
Drag equations and pictures into the table below to show her work.
Answer:
[tex]\sqrt{149\\ \\[/tex]
However, that's the length of "c" and you're looking to drag it in. So,o you drag in 10^2+7^2=a^2.
Then, as shown by the first picture attatched, you can drag in the one with "c" and "a" with the five shown.
Step-by-step explanation:
To find "c" the diagonal, as explained, you need to use the theorem twice. You can first use it by finding "a", as you already have "b". To find a, you do 10^2+7^2=a^2, the hypotenuse.
100+49=149.
So, a is root 149.
a^2+b^2=c^2 so
149+25=174
a) The length of a, a² = 10² + 7²
b) The fourth Figure will be Drag in Last column.
What is Pythagoras Theorem?The Pythagoras theorem states that the square of a triangle's hypotenuse is equal to the sum of its other two sides' squares.
Given:
As From the Figure, a² = 10² + 7²
a² = 100 + 49
a² = 149
a= √149
To find c the diagonal,
a² = 10²+ 7²
a² = 149
a = √149
Now, a²+b²=c²
The fourth Figure will be Drag in Last column.
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