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3 years ago

6

Write and solve a real-world problem involving the multiplication of a fraction and a whole number whose productis between 10 an

d 15.

1 answer:

Andreyy893 years ago

4 0

You have to make a problem that could happen in the real world that multiplication of a fracton using product between 10 and 15

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Pls answer correctly thnks

hammer [34]

$-5x+3y = 10~~~~ .....(i)\\\\2x+5y =-35~~~ ....(ii)\\\\\text{Multiply equation (ii) by}~ \dfrac 35~ \text{ and do (ii) -(i)}\\\\\\\dfrac 35(2x+5y) - (-5x+3y) = \dfrac 35}(-35) - 10\\\\\implies \dfrac{6x}5 +3y + 5x -3y = -21-10 = -31\\\\\implies \dfrac{6x + 25x}5 = -31\\\\\implies 31x = -31 \times 5\\\\\implies x = -5\\\\\text{Substitute }~x=-5~ \text{in equation (ii):}\\\\2(-5) +5y =-35\\\\\implies -10 +5y = -35\\\\\implies 5y = -35 +10 = -25\\\\\implies y = - \dfrac{25}5 = -5$

$\text{Hence,}~ \textbf{(x,y) = (-5, -5)}$

5 0

2 years ago

Read 2 more answers

John's cell phone gives him 1250 minutes for $25. He used 1300 minutes. How much will his cell phone company bill him for?

kondaur [170]

Answer:

$26.

Step-by-step explanation:

We have been given that John's cell phone gives him 1250 minutes for $25. We are asked to find John's bill for 1300 minutes.

First of all, we will find charges per minute by dividing $25 by 1250 as:

$\text{Charge per minute}=\frac{\$25}{1250}$

$\text{Charge per minute}=\$0.02$

Now, we will multiply 1300 by $0.02 to find John's bill.

$\text{John's bill}=\$0.02\times 1300$

$\text{John's bill}=\$26$

Therefore, John's company will charge him $26 for 1300 minutes.

3 0

3 years ago

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Andres buys 3 boxes of markers. Each box has the same number of markers. Andres now has 15 markers. Write and solve an equation

irinina [24]

Answer:

The answer is five

Step-by-step explanation:

Because 5 times 3 equals 15.

That's just basic multiplying. (*^*)

Have a good day!

3 0

3 years ago

Read 2 more answers

Solve.<br><br> 2x + 6 - 7x = 21

Slav-nsk [51]

-7x + 2x (add common factors)
-5x+6+21 (what happen to one side happens to the others
-5x=21 (divide by five)
x= -3

8 0

3 years ago

Read 2 more answers

PLEASE HELP ASAP! QUESTION IS IN THE PICTURE! 30 POINTS!

Vadim26 [7]

65 = 12.1+h the flower is 65 inches. it has grown 12.1 inches since the last time he measured it. the last time he measured it, it was height h.

65 = 12.1 + h

subtract 12.1 from both sides

65-12.1 = 12.1 + h- 12.1

52.9 = h

The last time he measured it it was 52.9 inches

5 0

3 years ago