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borishaifa [10]

4 years ago

15

If 40% of a number is 56 what is the original number

1 answer:

PilotLPTM [1.2K]4 years ago

3 0

<span> the original number is 140.</span>

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Marcos reads 3, books in 1 3/4 weeks.

Fofino [41]

Answer:

$x = \frac{12}{7}\ books$

Step-by-step explanation:

Given

$3\ books = 1\frac{3}{4}\ weeks$

Required

Number of books in 1 week

Represent the number of books in 1 week with x.

So, we have:

$3\ books = 1\frac{3}{4}\ weeks$

$x = 1\ week$

Cross Multiply

$x * 1\frac{3}{4} = 3 * 1$

$x * 1\frac{3}{4} = 3$

Convert fraction to improper fraction

$x * \frac{7}{4} = 3$

Multiply through by $\frac{4}{7}$

$x * \frac{7}{4}*\frac{4}{7} = 3 * \frac{4}{7}$

$x = 3 * \frac{4}{7}$

$x = \frac{12}{7}\ books$

<em>Hence: 12/7 books were read in a week</em>

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3 years ago

A machine produces 75 widgets an hour. How many widgets does it produce in 6 minutes

Goshia [24]

75 divided by 60 times 6 equal 7.5

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3 years ago

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Mike is renting a boat. The rental fee is $25 for each hour. He rented a boat for 3 hours. Which is the dependent variable in th

egoroff_w [7]

225 i think not sure

7 0

3 years ago

Find the expression to (x-1)(x-9)

disa [49]

(x<span> + </span>9)(x<span> – </span>1<span>) = 0. </span>x<span> = -</span>9<span> or </span>x<span> = </span><span>1</span>

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4 years ago

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9 Marty conducted a survey in his first period class to determine student preferences for music. Out of 25 students, 14 like hip

S_A_V [24]

Answer:

C

Step-by-step explanation:

14/25=0.56 0.56x300=168

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