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4 years ago

12

Me groves has trays of paint for her students. Each tray has 5 colors. One of the colors is purple. What fraction of the colors

in 20 trays is purple

1 answer:

Natali5045456 [20]4 years ago

7 0

Purple = 1/5 of the colors

5 colors per tray, 20 trays = 5 * 20 = 100 colors

1/5 * 100 = 100/5 = 20

20 colors are purple

20/100 = 1/5

1/5

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Which of these does NOT represent the number of minutes in a hour?

Pachacha [2.7K]

Answer:

the question is cut in half

6 0

3 years ago

You are installing a wood fence. The fence is 120 feet long. East wood slat to be installed vertically, is 3 3/4 inches wide. Wh

ddd [48]

3 3/4 inches = (3 3/4 / 12) feet = 0.3125 feet
120 feet requires ------- x number of board.

120 feet/0.3125 feet / board = 384 boards.

1 board costs 1.40
384 boards cost x

1.4 * 384.00= x*1 = x
537.60 dollars.

Note if you need to do this by dimensional analysis, it will look like this.

120 feet/fence [ 1 board / 3.75 inches] [ 12 inches/foot] [1.40 dollars / board]

All units that can be cancelled should be.
The result is 537.6 dollars / fence which is the answer you got.

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3 years ago

Use the list method to write "The perfect square integers between 1 and 80 inclusive".

oksian1 [2.3K]

ANSWER

{1, 4, 9, 16, 25, 36, 49, 64}

EXPLANATION

The perfect square integers between 1 and 80 inclusive are obtained by squaring the natural numbers from 1 to 8

${1}^{2} = 1$

${2}^{2} = 4$

${3}^{2} = 9$

${4}^{2} = 16$

${5}^{2} = 25$

${6}^{2} = 36$

${7}^{2} = 49$

${8}^{2} = 64$

The square of the next number does not fall within the given range.

Therefore "The perfect square integers between 1 and 80 inclusive" are

{1, 4, 9, 16, 25, 36, 49, 64}

7 0

3 years ago

Read 2 more answers

A is at (-2, 1) and B is at (4, -1).

Dmitry_Shevchenko [17]

Answer:

<em>The coordinates of P are (1,0)</em>

Step-by-step explanation:

<u>Midpoint</u>

The midpoint (xm,ym) of a segment defined by points (x1,y1) and (x2,y2) is calculated as follows:

$\displaystyle x_m=\frac{x_1+x_2}{2}$

$\displaystyle y_m=\frac{y_1+y_2}{2}$

We need to find the coordinates of P which is equidistant from the endpoints A=(-2,1) and B=(4,-1).

Calculate the midpoint:

$\displaystyle x_m=\frac{-2+4}{2}=1$

$\displaystyle y_m=\frac{1-1}{2}=0$

Thus, the coordinates of P are (1,0)

Note the midpoint does not lie on the y-axis but on the x-axis.

7 0

3 years ago

The sum of ages of Paula and her mother is 48. Her mother is 12 years more than twice as old as Paula. Use a linear system to de

Dmitry_Shevchenko [17]

Answer:

72

Step-by-step explanation:

12 times 6 is 72

48 + 24 =72

3 0

3 years ago