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Effectus [21]
2 years ago
15

A tree is 12 metres tall and casts a shadow 9 metres long. A building nearby casts a shadow that measures 21 metres. How tall is

the building? (Draw a picture, set up a proportion)
1) 16 m
2) 24 m
3) 21 m
4) 28 m
Mathematics
1 answer:
Ulleksa [173]2 years ago
8 0
The answer to this question is 16m
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The sum of a number divided by 5 and 12 is 16. What is the number?
Pachacha [2.7K]

x/5)+12=16

x/5=4

x=20

Hope this helps! Have a nice day!

8 0
3 years ago
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HELP! Plz! I dont know how to do this anymore
Tasya [4]
I don’t know if this correct i haven’t done it in two years but i think the answer is 76 but i’m not 100% sure
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3 years ago
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Geometric mean. Find x, y, and z. Show work please.
Aleks [24]

Answer:

Step-by-step explanation:

i dont know the rest but the answer to x is 15 because the formula to that triangle is A^2+B^2=C^2

A=12

B=9

144(12^2) and 81 (9^2) add

225

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4 0
3 years ago
Teresa earned scores of 88, 84, 88 points and 91 points on 4 test what is the lowest score she can get on the fifth test and sti
Usimov [2.4K]

Answer:

99 points

Step-by-step explanation:

Average of a data a is the sum of the data divided by the number of data.

Average = sum of data ÷ number of data

A = T/n .....1

For the average of 5 test to be 90.

The total sum of score must be;

Number of tests n = 5

Average A = 90

Substituting into equation 1

90 = T/5

T = 90×5 = 450 points

The total score must be equal to 450 point to have an average of 90 points

The sum of the first four test is;

88+84+88+91 = 351

Let x represent the first score,

351 + x = 450

x = 450 - 351

x = 99 points

The minimum score she can get in the fifth test is 99 points

5 0
3 years ago
4(4-w)=3(2w+2)<br>find w​
Travka [436]

Answer:

1

Step-by-step explanation:

4(4-w) = 3(2w+2)

Use distributive property:

16 - 4w = 6w + 6

    +4w  +4w

------------------------

     16 = 10w + 6

    -6              -6

-------------------------

        10 = 10w

        ----    -----

        10      10

         1 = w

Hope this helped.

7 0
3 years ago
Read 2 more answers
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