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2 years ago

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What is the answer to this Question

1 answer:

mixer [17]2 years ago

7 0

15. n - 6 = 21......add 6 to both sides
n = 21 + 6
n = 27

16. p + 1 3/4 = 4 5/8...turn mixed numbers to improper fractions
p + 7/4 = 37/8....there is 2 ways to continue from here...I will show u both

(1) p + 7/4 = 37/8....multiply everything by common denominator of 8, this gets rid of the fractions.
8p + 14 = 37 (result of multiplying by 8)
8p = 37 - 14
8p = 23
p = 23/8

(2) p + 7/4 = 37/8...subtract 7/4 from both sides
p = 37/8 - 7/4...common denominator is 8
p = 37/8 - 14/8
p = 23/8

either way u use, u will arrive at the same answer

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Need an answer for both plez.

Ilya [14]

Answer:

(2, 13)

Step-by-step explanation:

Since they both equal y, you can equal them to each other.

8x - 3 = 2x + 9

Subtract 2x from both sides.

6x - 3 = 9

Add 3 to both sides.

6x = 12

Now divide 6 on both sides.

x = 2

Now that we have found x, we need to find y. Just plug in x to the equations.

y = 2(2) + 9

y = 4 + 9

y = 13

Now, if the next equal has the same y, then both are true.

8(2) -3 = y

16-3=y

13 = y

So therefor, both x and y are true.

3 0

2 years ago

Marsha's class is planting 120 trees as part of a community volunteer project. The class plants pine trees and oak trees in a ra

Ivanshal [37]

Answer:

pine:oak=3:1

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Step-by-step explanation:

6 0

2 years ago

Which expression is equivalent to 144 superscript three-halves?

IrinaK [193]

Using the law of indices the equivalent expression of $144^{\frac{3}{2} }$ is 1728

<h3>How to find equivalent expression?</h3>

The equivalent expression of $144^{\frac{3}{2} }$ can be express as follows:

Using the law of indices,

$(a^{b} )^{c} = a^{bc}$

Applying this laws,

$144^{\frac{3}{2} }=(12^{2} )^{\frac{3}{2} }$

Hence,

$144^{\frac{3}{2} }=(12^{2} )^{\frac{3}{2} } = 12^{3}$

Finally,

12³ = 1728

learn more on expression here: brainly.com/question/16619965

#SPJ4

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mario62 [17]

If 1 kilogram equals 2.2 pounds, how many pounds will 31.5 kilograms equal?
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