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m_a_m_a [10]
3 years ago
15

40 POINTS been stuck on this i'd mean alot for yall to help i'll mark brianliest

Mathematics
2 answers:
g100num [7]3 years ago
8 0

Answer:

For the first blank: 8

For the second blank: I think it's 913

Step-by-step explanation:

First blank: To find the area of a square do (Length * Width) For the roof do 15 * 25 to get 375. Then divide by 100 and you get 3.75 but round to 4

That's for 1 half of the roof so do cover the whole roof you need 8.

Digiron [165]3 years ago
4 0

Answer:

First blank 8 second blank 913

Step-by-step explanation:

Ive done the same question before

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3n-5=8(6+5n) addition property of equality
blagie [28]

Answer:

exact form:  n=-53/37

Step-by-step explanation:

isolate the variable by dividing each side by factors that don't contain the variable.

4 0
3 years ago
The number 66 is increased to 72. What is the percentage by which the number was increased, to the nearest tenth of a percent?
Lunna [17]

Answer:

The increase is 9.1%

Step-by-step explanation:

<u>Step 1:  Make an equation </u>

66 * x = 72

66x = 72

<u>Step 2:  Divide both sides by 66 </u>

66x / 66 = 72 / 66

x = 1.09090

<u>Step 3:  Find the increased </u>

1 - 1.09090

0.091 * 100

9.1%

Answer:  The increase is 9.1%

6 0
3 years ago
Alex has 4 less than twice the number baseball cards as leo. ginny has 12 more than three times the number of baseball cards Leo
marin [14]
Alex has 128 baseball cards, Leo has 66 cards, and ginny has 210.
6 0
3 years ago
If two similar cones have volumes of 320cm^3 and 1,080cm^3, find the scale factor.
Alexeev081 [22]
The ratio of the volumes is equal to the scale factor cubed.

\frac{V_1}{V_2}=k^3 \\ \\&#10;\frac{320 \ cm^3}{1080 \ cm^3}=k^3 \\&#10;\frac{8}{27}=k^3 \\&#10;k=\sqrt[3]{\frac{8}{27}} \\&#10;\boxed{k=\frac{2}{3}} \Leftarrow \hbox{answer B}
3 0
4 years ago
Jan notes that 6 out of every 18 cars that pass her on the
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Answer:

B) 18

Step-by-step explanation:

6 out of 18 is 6/18 = 1/3

1/3 x 54 = 18

7 0
3 years ago
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