2 years ago

Which equation represents the sentence, “half the number a plus 10 is z”?

Mathematics

1 answer:

Mrac [35]2 years ago

5 0

Answer:

1/2x+10=z

Step-by-step explanation:

x be the number................

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ella [17]

Answer:

7.5

Step-by-step explanation:

2x+12=6x-18

2x=6x-30

-4x=-30

x=7.5

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3 years ago

Can someone explain to me how to solve this question?

adoni [48]

Answer:

1) D

2) C

Step-by-step explanation:

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3 years ago

a right pyramid with a square base has a base edge length of 24 feet and slant height of 20 feet what is the height of the pyram

Sphinxa [80]

Let

l-------> the slant height of the right pyramid

b------> the length side of the square base of the right pyramid

h------> the height of the right pyramid

we know that

Applying the Pythagorean Theorem

$l^{2} =h^{2}+(\frac{b}{2})^{2}$

Solve for h

$h^{2}=l^{2}-(\frac{b}{2})^{2}$

in this problem we have

$l=20\ ft\\\frac{b}{2} =\frac{24}{2} =12\ ft$

Substitute in the formula

$h^{2}=20^{2}-12^{2}$

$h^{2}=256$

$h=16\ ft$

therefore

<u>the answer is</u>

The height of the right pyramid is $16\ ft$

7 0

3 years ago

Read 2 more answers

A city lot is 20 4/5 meters wide. It is 2 1/2 times as long as it is wide. How long is the city lot? Express your answer in simp

blsea [12.9K]

Answer:

41 6/10 or 41 3/5

both answered are the same, just simplified it

Step-by-step explanation:

20 4/5 x 2= 41 6/10 or 41 3/5

3 0

3 years ago

Read 2 more answers

100 to anyone who can answer all of these !!!

siniylev [52]

Answer:

24yrds is (a) 24.12yrds is (b) 64yrds is (c) And that's all i can do, don't get mad at me please.

Step-by-step explanation:

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4 years ago