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4 years ago

Write 87% as a decimal

Mathematics

2 answers:

mariarad [96]4 years ago

8 0

.87
all you do is divide by 100

gulaghasi [49]4 years ago

6 0

87% = 0.87
Hope that helps

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Amy is 9 years older than her younger sister. if her younger sister is now 1 year old, how many years later will Amy be 4 times

Sholpan [36]

Age of Amy's younger sister=1year

☆Amy is 9 years older than her younger sister.

$\\ \sf\longmapsto Age\:of\:Amy=1+9=10years$

Let after x years Amy will be 4times old as her sister.

ATQ

$\\ \sf\longmapsto \dfrac{1+x}{9+x}=\dfrac{1}{4}$

Using cross multiplication

$\\ \sf\longmapsto 4(1+x)=1(9+x)$

$\\ \sf\longmapsto 4+4x=9+x$

$\\ \sf\longmapsto 4x-x=9-4$

$\\ \sf\longmapsto 3x=5$

$\\ \sf\longmapsto x=\dfrac{5}{3}$

$\\ \sf\longmapsto x=1.6$

$\\ \sf\longmapsto x=2(approx)$

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3 years ago

a scuba diver descended below the ocean's surface in 35-foot intervals as he examined a coral reef. He dove to a total depth of

miv72 [106K]

Answer:

Step-by-step explanation:

Two ways to solve this - either divide 140 by 35 (140/35 = 4)

or keep adding 35 until you reach 140: 35+35+35+35 = 140

7 0

3 years ago

A shoebox has a length of 1 1/4 feet, a width of 1 foot, and a height of 1/2 foot cubes that measure 1/4 foot on each side are p

poizon [28]

The number of cubes that will fit into the shoebox is 40 cubes

<h3>How to calculate the volume of a box</h3>

Volume is the measure of a substance an object contains

Volume of the box = length * width * height

Volume of the box = 5/4 * 1 * 1/2
Volume of the box = 5/8cubic unit

<u />

<u>Determine the volume of the box </u>

Volume of the box = l³

Volume of the box = (1/4)³ = 1/64 cubic units

Number of cubes = (5/8)/(1/64)
Number of cubes = 5/8 * 64/1
Number of cubes = 5 * 8
Number of cubes = 40 cubes

Hence the number of cubes that will fit into the shoebox is 40 cubes

Learn more volume of cube here: brainly.com/question/1972490

3 0

2 years ago

You borrow $24,500 to buy a car. Your monthly payment on the 5-year loan is $496.77. What is your total finance charge?

svetlana [45]

60 payments of $496.77 add to 29,806.20, so the finance charges amount to
.. $29806.20 -24500.00 = $5,306.20

4 0

3 years ago

A researcher is using a repeated-measures study to evaluate the difference between two treatments. If the difference between the

Leya [2.2K]

Answer:

A) a small variance for the difference scores and a small standard error

Step-by-step explanation:

Since the difference scores are obtained by subtracting one variable form another, if the difference scores are consistent between treatments, then the variance will be small. The higher the variance, the higher the standard error. So if the variance is small, then the standard error will also be small.

8 0

3 years ago