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3 years ago

Corey and Jack share money in the ratio of 8 : 5If Jack has $75 how much does Corey have?

Mathematics

1 answer:

mixas84 [53]3 years ago

6 0

Answer:

120

Step-by-step explanation:

8:5

x:75

ratio problem

8/x = 5/75

5x = 600

x = 120

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David, Egil and Frances share money in the ratio 2:7:9. Frances gets ?80 more than David. Explain how you know Egil gets ?80.

Natalija [7]

Step-by-step explanation:

We have been given that David, Egil and Frances share money in the ratio 2:7:9.

Let 2x, 7x and 9x be the amounts of money that David, Agil and Frances get respectively.

We are told that Frances gets $80 more than David. So we can write this information in an equation as:

$9x=2x+80$

Now let us solve for x.

$9x-2x=80$

$7x=80$

$x=\frac{80}{7}$

Now let us substitute $x=\frac{80}{7}$ in 7x (amount of money that Egil gets).

$\text{ Amount of money that Egil will get}=7\cdot \frac{80}{7}$

Upon cancelling out 7 from numerator and denominator we will get,

$\text{ Amount of money that Egil will get}=80$

Therefore, Egil will get $80.

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3 years ago

Shandler rides his bike to school every day. He travels to thousand 560 feet in 64 second. How many feet did he travel per secon

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He traveled 40 feet per second

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3 years ago

Find the equation for 4x/5=1/3(2x-15)

tia_tia [17]

4x / 5 = 1 / 3 ( 2x - 15 )
4x / 5= ( 2x - 15 ) / 3
4x × 3 = 5 ( 2x - 15 )
12x = 10x - 75
12x - 10x = - 75
2x = - 75
x = - 75 / 2
x = - 37.5

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3 years ago

A = πab/4 solve for b

Studentka2010 [4]

Answer:

4A/ (πa) = b

Step-by-step explanation:

A = πab/4

Multiply each side by 4

4A = 4πab/4

4A = πab

Divide each side by πa

4A/(πa) = πab/ πa

4A/ (πa) = b

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3 years ago

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Step-by-step explanation:

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3 years ago

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