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3 years ago

What the value of x 4(2x-5)=5x+4

Mathematics

2 answers:

mrs_skeptik [129]3 years ago

7 0

x=8

hope this helps you

ddd [48]3 years ago

3 0

First you would distribute the 4 on the left side of the equal sign,

8x-20=5x+4.

You would then combine like terms by adding 20 to both sides,

8x=5x+24

You would then subtract 5x from both sides,

3x=24

Finally, you would divide 24 by 3.

24/3=8

8=x

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Torn runs 10 miles in 85 minutes at the same rate how many minutes would he take to run 8 mile

Hoochie [10]

Rate = 85 minutes/10 miles

he runs a mile every 8.5 minutes

8 x 8.5 =68

This is because you multiply the Mileage(8) by the rate that was aquired. :)

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3 years ago

I can’t figure out this answer, can you please explain? Thanks

Dimas [21]

The answer is actually 7,200

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3 years ago

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The diameter of Mercury is approximately 4.9×103 kilometers. The diameter of Earth is approximately 1.3×104 kilometers. About ho

-Dominant- [34]

Hi there!

To get the answer to this question, let's divide the diameter of the Earth by the diameter of Mercury.

$\frac{1.3*10^4}{4.9*10^3}$

We can change this to

$\frac{1.3}{4.9}*\frac{10^4}{10^3}$

Let's solve for each individual fraction

$\frac{1.3}{4.9}$ ≈ 0.27

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Now, multiply.

0.27 * 10 = 2.7

That's your answer.

Have an awesome day/night! :)

~collinjun0827, Junior Moderator

5 0

3 years ago

If x+4/4 = y+7/7 then x/4=___

muminat

Please, enclose those binomials x+4 and y+7 inside parentheses:

(x+4) / 4 = (y+7) / 7. Find (x/4).

Let's solve the above equation for x:

x+4 = 4(y+7)/7. Then x = 4(y+7) / 7 - 4

Last, divide all 3 terms by 4: x/4 = (y+7) / 7 - 1 (answer)

y + 7 - 7
You could also type this as x/4 = ------------- = y/7
7

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3 years ago

Y=4x. Y=40. What does x equal

egoroff_w [7]

Answer:

Your answer is 10!

Y = 4x

(40) = 4x

40 = 4(10)

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3 years ago

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