Rachelhasalreadywritten10pages,andsheexpectstowrite1pageforeveryadditionalhourspentwriting.HowmanyhourswillRachelhavetospendwritingthisweekinordertohavewrittenatotalof27pages?
Answer:
17 hours
Step-by-step explanation:
Rachel has already written 10pages, and she expects to write 1page for every additional hour spent writing. How many hours will Rachel have to spend writing this week in order to have written a total of 27pages?
The illustration can be modelled using the equation
y = 10 + 1(x)
y = 10 + x
Where,
y = total number of pages
x = number of hours
10 = pages already written
If y = 27 pages, find x
y = 10 + x
27 = 10 + x
27 - 10 = x
17 = x
x = 17 hours
Rachel have to spend 17 hours writing this week in order to have written a total of 27pages
3(a+b)=a+2 make a subject of the formula
Answer:
a = 2 - 3b
2
Step-by-step explanation:
3(a + b) = a + 2 expand
3a + 3b = a + 2
3a - a = 2 - 3b
2a = 2 - 3b
a = 2 - 3b
2
what are the x and y intercepts of the function f(x)=x/x^2-3x
Answer:x and x2
Step-by-step explanation:
ASAP When 4(0.5x+2.5y-0.7x-1.3y+4) is simplified, what is the resulting expression?
A) -0.8x+4.8y+16
B) 0.8x-4.8y+16
C) -0.8x-4.8y+4
D) 0.8x+4.8y+4
Answer:
The answer is A.
Step-by-step explanation:
4(0.5x+2.5y-0.7x-1.3y+4)
2x+10y+-2.8x+-5.2y+16
2x-2.8x+10y-5.2y+16
= -0.8x+4.8y+16
(x3x²+2) (3x² 42x-4)
Answer:
3x242x-4
2(363x-2)
726x-4 the answer
Step-by-step explanation:
because this is the answer
sana nakatulong
first to answer correctly gets brainleist! (bringing out a lot of questions so yea!)
Answer:
C.
Step-by-step explanation:
The easiest way to tell if a relation is a function is to look at the values of the x's. If more than one x is the same, it cannot be a function. In contrast, if more than one y is the same, it is okay. The answers A, B, and D are functions because the x's are all different. Looking at the table for the answer C, you can see that two x's are the same (there are two x's with the value of 1).
Hope this helps!! Have a wonderful day :D
Five friends ate lunch together. They each paid the same amount the total cost of all five meals was $51.94 which included a 6% sales tax, what was the cost of one meal before tax was added?
Given:
Total number of friends = 5
Total cost of all five meals = $51.94
Sales tax = 6%
To find:
The cost of one meal before tax was added.
Solution:
Let x be the cost of all five meals before tax.
Then, Amount of tax = 6% of x
According to he question,
[tex]x+\dfrac{6}{100}x=51.94[/tex]
[tex]x+0.06x=51.94[/tex]
[tex]1.06x=51.94[/tex]
Divide both sides by 51.94.
[tex]x=\dfrac{51.94}{1.06}[/tex]
[tex]x=49[/tex]
So, the cost of all five meals before tax is $49.
Divide this cost by 5 to get the cost of one meal before tax was added.
[tex]\dfrac{49}{5}=9.8[/tex]
Therefore, the cost of one meal before tax was added, is $9.8.
Mr. Morales purchases 6 boxes of pencils, 12 boxes of pens, and 4 cases of notebook paper for his classroom. Each box of pencils costs $4.10, each box of pens costs $6.50, and each case of notebook paper costs $105. What is the total cost in dollars of his classroom supplies?
Answer:
$522.60
Step-by-step explanation:
pencils: $4.10 * 6 ===> $24.60
pens: $6.50 * 12 ===> $78
notebook paper: $105 * 4 ===> $420
pencils + pens + notebook paper = total cost
24.60 + 78 + 420 = 522.60
please help me so much quick :)
Answer:
22 < x < 74
Step-by-step explanation:
Given 2 sides of a triangle with third side x , then
difference of 2 sides < x < sum of 2 sides , that is
48 - 26 < x < 48 + 26 , so
22 < x < 74
Please answer correctly !!!!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!
3 +5.2.c = 1 - 2.87
Answer:
-0.0936538462
Step-by-step explanation:
Start by solving the right side of the equation
1 - 2.87 = -1.87
now we have:
3 + 5.2c = -1.87
subtract 3 from both sides to get:
5.2c = -4.87
divide both sides by 5.2 to get:
-0.0936538462
hope that's what you're looking for! :)
Write an equation in Slope Intercept form with a slope of -5 and y-intercept of 4. (No spaces)
Thomas has a bag with 6 purple and 5 blue marbles. If his friend Nick pulls 2 marbles from the bag, what is the probability of him getting 2 purple marbles. 30/121 30/121 21/22 21/22 3/11 3/11 11/21
Answer: 3/11
Step-by-step explanation:
Number of purple marbles = 6
Number of blue marbles = 5
Total number of marbles = 6 + 5 = 11
The probability of picking the dust purple marble will be 6/11. After a purple marvel has been picked, there'll be 5 purple marbles left and the total number of marbles will be 10, therefore the probability of picking the second purple marble will be 5/10.
Therefore we then multiply the probability of picking the first purple marble by the probability of picking the second purple marble. This will be:
= 6/11 × 5/10
= 6/11 × 1/2
= 3/11
kate ran 4 miles how far did she run in kilometers
Answer:
6.4
Step-by-step explanation:
Answer:
6.5 kilometers
Step-by-step explanation:
answer and show work plzzzzxxxx thxxx
Answer:
-21
Step-by-step explanation:
9/1 x -7/2 = -42/2 = -21
why cant anyone answer my long math question that has 70 or 60 points on it, come on guys.
Answer:
Math sucks dude.
explanation: math hard
PLEASE HELP WILL GIVE BRAINLIEST
Answer:
is it [tex]-2t^{2}[/tex] or [tex]2t^{2}[/tex]?
HELP ASAP PLEASE !!!><
WILL GIVE BRAINLIEST ❤️
Find the slope of the line passing through the given points using the slope formula. Describe the slope as
positive, negative, zero, or undefined.
(-5, -18) and (-5, -3)
Answer:
Your slope would be undefined
-[tex]\frac{-3-(-18)}{-5-(-5\\} \\[/tex]
the -5-(-5) is cancelling it's self out
And i believe M=0.75 take this with a bit of salt
two common multiples of 4 and 8 are
Answer:
8, 16
Step-by-step explanation:
You are saving for a bike and can save $10 per week. You have $25 when you begin saving. Write an explicit equation
to represent the amount of money you have saved at any given week.
Answer:
your pretty whatsbyour name
Answer:
Amount of money saved 25 35 45 55 65 75 85
Step-by-step explanation:
Explanation: On week 1 you have the $25 you already saved plus the $10 for that week, so $35.
For every week after that add $10 to the money saved for the additional $10 saved that week.
On the 8th week the total amount of money saved is 95+10, or $105.
Does this graph represent a proportional relationship?
Explain
This graph does not show a proportional relationship because the line is not straight and does not go through the origin.
Answer:
This graph does not show a proportional relationship because the line is not straight and does not go through the origin
Step-by-step explanation:
Calculate 8/9-2/3 giving your answer in its simplest form.
Answer:
(8/9) - (2/3) = (8-6)/9 = 2/9 = 0.22
See attachment for math work and answer.
ILL MARK BRAINLIEST IF FAST
Select the correct answer.
Which table represents a linear function that has a greater unit rate than that of the function y = 200x + 50?
Answer:
D
Step-by-step explanation:
A unit rate is basically which one increases more as time goes on. Now. to make it easier let me explain visual.
You have 50 apples at the start and every hour you get 200 more apples, sweet!
Now let's look at the chart.
The first one is 200x+100, this is wrong since this has a better start but you don't get as much apples.
Same goes for the B and C. The only one that would make sense is D since you're also adding 10 more apples for each one you increase.
A car travels at a speed of 72 miles per hour. How far will the
car travel after 77 hours? Enter your answer in the form a^b.
miles
Answer:
5544 miles per hour
Step-by-step explanation:
5544 miles per hour, because 1 hour is 72 miles so x 77 hours is 5544 miles per hour.
Answer:
Step-by-step explanation:
Distance=speed* time
Given speed = 72 miles per hour
Time= 77 hour
So distance= 72x77 miles
= 5544 miles
hellppppp please simplify the expression- 96
Answer:
Step-by-step explanation:
-√96 = -4√6
' the length of one side of an equilateral is 3x+2. its perimeter is 60 centimeters. write an equation that could be used to find the value of x. solve for x and then find the length of the side. ''
I need to find the equation and the side length :')
also please answer this quickly hhhhhhhhhhhhh
Answer:
Step-by-step explanation:
Triangle equilateral has 3 sides
3(3x+2) = 60
9x+6 =60
9x= 54
x=9
3x9 +2 = 20 One side = 20
20x3=60 3 sides = 60
Answer:
60
Step-by-step explanation: this is simple because it is lou
35x-12= -34x+710 answer fast too
Answer:
x=722/69
Step-by-step explanation:
This table represents a linear function. Find the missing values to complete the table.
Answer:
(2,5) and (7,12.5)
Step-by-step explanation:
Solve for change in y over change in x using the points (3,13/2) and (6,11). You can then get the equation y=1.5x+2. Then plug in the values you are given from the missing points using the equation. Hope this helped! If it did, please mark the brainliest.
The mean of 4 numbers is 40 what is the sum of the 4 numbers
Answer:44.445
Step-by-step explanation:
Let the 5 numbers are a,b,c,d, and e
so (a+b+c+d+e)/5=40
So a+b+c+d+e=5*40=200
Now let the next 4 no are p,q,r,s then
(p+q+r+s)/4=50
p+q+r+s=200
Thus sum of all 9 numbers
=(a+b+c+d+e) +(p+q+r+s)
=200+200=400
thus average of these 9 numbers
If the mean of 4 numbers is 40. Then the sum of the numbers will be 160.
What is Mean?The mean is the straightforward meaning of the normal of a lot of numbers. In measurements, one of the markers of focal propensity is the mean.
The mean of 4 numbers is 40.
Mean = (Sum of the number) / (Number of the observation)
Mean = 40
Number of the observation = 4
Then the sum of the numbers will be
40 = (Sum of the number) / 4
Sum of the numbers = 160
More about the mean link is given below.
https://brainly.com/question/521501
#SPJ2
The cost of grapes was $0.88 a pound. Change bought 4.5 pounds. Find the amount he paid.
Answer:
$3.96
Step-by-step explanation:
If he gave $.88 per each pound he bought all you have to do is multiply $.88 by how many pounds he bought 4.5. $.88x4.5 equals $3.96
Answer:
$3.96
Step-by-step explanation:
0.88*4.5= 3.96