MATHEMATICS MIDDLE SCHOOL

Jana is taking pledges for a bike-a-thon fundraiser. Ivan pledged $4.25, plus $1.25 for eachmile that Jana bikes. Vicky pledged $5.75, plus $0.75 for each mile that Jana bikes.
Part A
Write expressions for the number of dollars Ivan pledged and the number of dollars Vicky
pledged. Use m for the number of miles that Jana bikes.
Part B
Add the two expressions from Part A to find the combined amount that Ivan and Vicky
pledged in terms of m.
Part C
Find an expression equivalent to the one from Part B by factoring out the greatest common
factor from the two terms.

Answers

Answer 1
Answer:

Jana is taking pledges for a bike-a-thon fundraiser.

Part A

Ivan: $4.25 + $1.25m

Vicky: $5.75 + $0.75m

where m is the number of miles jana bikes

Part B

Total = ($4.25 + $1.25m) + ($5.75 + $0.75m)

Total = $4.25 + $5.75 + $1.25m + $0.75m

Total = $10.00 + $2m

Part C

Total = $2 (5+m)
Answer 2
Answer: Part A
Ivan- 4.25+1.25x
x=number of miles rode
Vicky- 5.75+0.75x
x=number of miles rode

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Let f(x)=2x+2. Solve f^-1(x) when x=4

Answers

f⁻¹(x) stands for the invers of function f(x). The inverse of f(x) is equal to x. We need to solve for x.

solve for x
f(x) = 2x + 2
2x + 2 = f(x)
2x = f(x) - 2
  x = (f(x)-2)/(2)
f⁻¹(x) = (x-2)/(2)

Determine the value of f⁻¹(x) when x = 4
f⁻¹(x) = (x-2)/(2)
f⁻¹(4) = (4-2)/(2)
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Megan is putting wallpaper on a wall that measures 8 feet by 12 feet how much wallpaper does Meghan need to cover the wall

Answers

12*8 ( l * w ) = 96

Megan needs 96 feet squared of wallpaper to cover that wall.
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area=8*12
area=96
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a deli served 1288 sandwiches in 4 weeks. if it served the same number of sandwiches each day,how many sandwiches did it serve in 1 day?

Answers

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200 is 10 times as much as

Answers

Answer:

200 is 10 times as much as 20

Step-by-step explanation:

Let the number be y

as per the condition 200 is 10 times as much as y.

Solve for y:

10 times as much as x represents as 10 * y =10y

Then;

200 = 10y     ......[1]

Division property of equality states that you divide the same number to both sides of an equation.

Divide by 10 to both sides in equation [1];

(200)/(10)=(10y)/(10)

Simplify:

y= 20

Therefore, 200 is 10 times as much as 20.
20 since 20 x 10= 200

A town in east Texas recieved 10 inches of rain in two weeks. If it kept raining at this rate for a 31-day month, how much rain did the town recieve?

Answers

The best way to approach this problem is to find out how much fell in week. As you know what two weeks is, you simply have to halve this, giving you that one week is 5 inches of rain. One you have this, you can multiply this by 4 (as this will give you 4 weeks, or 28 days), and this gives you 20 inches in 28 days. You should then find the odd three days. If you divide 5 by 7, this will give you the rain fall in one day. 5/7= 0.8 inches per day. You then have top multiply this by 3 (as you've got three odd days), and this gives you 2.4. You then have to add together 2.4 and 20, giving you 22.4
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Hope this helps :) 

Answer:

22.4

Step-by-step explanation:

Slove for x : 9x+2=6

Answers

Step-by-step explanation:

9x+2=6

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