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3 years ago

Find two positive numbers if their ratio is 8:5 and the difference is 150.

1 answer:

7 0

Let's call the two numbers x and y. We can write a system of equations to describe the situation:

5x = 8y

x - y = 150

Let's solve the first equation for x:

x = 8y/5

Now we can use substitution to solve the system by plugging 8y/5 in for x in the second equation:

(8y/5) - y = 150

Simplify:

3y/5 = 150

3y = 750

y = 250

If y = 250, then x is:

x = 8(250)/5 = 400

The answer is 250 and 400.

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<h3>How to determine the true statement</h3>

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Read more about sequence at:

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2 years ago

Evaluate t-7 for t =20

Luda [366]

Answer:

The answer is 14

Step-by-step explanation:

t - 7 ; t = 20

20 - 7 = 14

Thus, The answer is 14

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2 years ago

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Agiven line has the equation 10x+27-2

bagirrra123 [75]

Answer:

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2 years ago

I NEED HELP NOOOOOWWWW!!!!!!!!

In-s [12.5K]

Answer: $1590cm^3$

Step-by-step explanation:

$V=\frac{3\sqrt{3} }{2}a^2h$

a = base

h = height

$V=\frac{3\sqrt{3} }{2}(6cm)^2(17cm)$

Solve the parentheses squared first.

$V=\frac{3\sqrt{3} }{2}(36cm^2)(17cm)$

2 and 36 can be simplied

2/2=1

36/2=18

$V=3\sqrt{3}(18cm^2)(17cm)$

$V=3\sqrt{3}(306cm^3)\\ V=1590.02cm^3$

Rounded to the nearest whole number... $1590cm^3$

3 0

3 years ago

20=2(r+7)<br> I need help with this equation

DochEvi [55]

Hi there! :) The answer to your question is 3. First you do parenthesis r=3.
3+7=10, then you do 10*2=20. That is how you solve the problem.

Hope I helped! :)
( Mark as Brainliest Answer! Thank you! :)

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2 years ago

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