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2 years ago

Percentage Practice- What percent of 24 is 42?

Mathematics

1 answer:

Oduvanchick [21]2 years ago

5 0

Answer:

24/42

Step-by-step explanation:

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A piece of rope is 70 inches long is to be cut into 2 pieces How long will each piece be if one piece is cut four times longer t

liq [111]

The long piece is 4 times the length of the short piece.

Short piece = 1 time
Long piece = 4 times
--------------------------------
Full rope = 5 times

5 times = 70 inches

Divide each side by 5 : 1 time = 14 inches

Short piece = 1 time = 14 inches

Long piece = 4 times = 4 x 14inches = 56 inches

Check:

Ratio of long to short = 56inches / 14inches = 4

Sum of both pieces = (56 + 14) = 70 inches

yay !

5 0

2 years ago

Factor x^6-y^6 completely show your work

IRISSAK [1]

Answer:

a=x^2 and b = y^2

Step-by-step explanation:

Since both terms are perfect cubes, factor using the difference of cubes formula, a^3 − b^3 = ( a − b) (a^2+ab+b^2)

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3 years ago

For 9x+25=88, Deens wrote the situation "I bought some shirts at the store for $9 each and received a $25 discount. My total bil

Sliva [168]

Total bill would be excluding the discount, so Deens has included the discount on the wrong side of the equation.

So: 9X = 88-25
9X=63
63/9=7
therefore Deens bought 7 shirts

7 0

2 years ago

Please help me answer this question and show work (see attached)

sasho [114]

5.6 * (7 / 5) = 7.84

7 0

3 years ago

Kim ran 2.76 miles on Monday, 2.34 miles on Tuesday, and 1.97 miles on Wednesday. Use front-end estimation to estimate the total

Mandarinka [93]

Kim ran total 7.1 miles.

Further explanation:

Front end estimation is the specific technique for rounding off numbers to estimates sums and differences. The numbers to be added or subtracted are rounded off to nearest one, tenth and hundredth.

So in the given scenario, we will round off to the nearest tenth.

So,

2.76 miles will be rounded off to 2.8 as the number right to the digit 7 is greater than 5, 7 will be rounded off to the next digit.

2.34 miles will be rounded off to 2.3 as the number right to 5 is less than 5, so 3 will be as it is.

1.97 miles will be rounded off to 2.0 as the number right to 9 is greater than 5 so it will be rounded off to the next number.

So, after estimation

$2.8+2.3+2.0 = 7.1\ miles$

Keywords: Front-end estimation, decimals

Learn more about decimal numbers at:

#LearnwithBrainly

7 0

3 years ago