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docker41 [41]
3 years ago
14

If the scale factor 3/4 and the area is 12cm2 what would the new area be

Mathematics
1 answer:
Andrei [34K]3 years ago
5 0
3/4 of 12
3/4 × 4 = 3
12 × 4 = 48
48 ÷ 3 = 16

Your answer would be 16 cm²
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Gettalie has 4,246 pennies. She wants to trade them in four quarters.How many quarters will Helka receive for her pennies?
Lady bird [3.3K]

Answer:

169 quarters

Step-by-step explanation:

Recall that 1 quarter = 25 pennies, and so the conversion factor is

  1 quarter

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Use this conversion factor to convert 4246 pennies into quarters:

  1 quarter

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Obviously we cannot get our hands on 0.84 quarters, so round the above result down:

4246 pennies = 169 quarters plus 21 leftover pennies.

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3 years ago
If EF = x + 5, DC = 2x + 4, and AB = 2x + 2. Find EF.<br><br>​
bonufazy [111]

Answer:

B *second one down.

Step-by-step explanation:

EF = 1/2(AB + CD)

x+5 = 1/2 (2x + 2 + 2x+4)   Combine the like terms on the right.

x+5 = 1/2 (4x + 6)                Remove the brackets.

x+5 = 1/2*4x + 1/2*6

x+5 = 2x + 3                       Subtract x from both sides

5 = 2x-x + 3

5 = x + 3                            Subtract 3 from both sides

5-3 = x

x = 2

EF = x + 5

EF = 2 + 5

EF = 7

The answer is B

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3 years ago
The legs of a right triangle are 2 and 3. Find the exact value (no decimals) of the hypotenuse.
AVprozaik [17]
A^2 +b^2 =c^2
2^2 + 3^2
4+9=13
The hypotenuse is equal to the square root of 13
5 0
3 years ago
36.2 rounding to the nearest tenth​
guapka [62]

This is what I found

Step-by-step explanation: To round 36.2 to the nearest tenth consider the hundredths' value of 36.2, which is 0 and equal or more than 5. Therefore, the tenths value of 36.2 increases by 1 to 3.

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Answer:

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Step-by-step explanation:

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