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2 years ago

7

A school bought 10³ erasers as part of an order for supplies. The total cost of the erasers was $30. What was the cost of each e

raser?

1 answer:

tresset_1 [31]2 years ago

8 0

Answer:

0.03

Step-by-step explanation:

divide 3 by 10^3 to obtain the answer.

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The mass of a cylinder made of barium with a height of 2 inches depends on the radius of the cylinder as defined by the function

svp [43]

Answer:

$r=22.07\ in$

Step-by-step explanation:

<em><u>The correct function is</u></em>

$m(r)=7.188\pi r^{2}$

we have

System of equations

$m=7.188\pi r^{2}$ -----> equation A

$m=11,000$ -----> equation B

Solve by substitution method

substitute equation B in equation A

$11,000=7.188\pi r^{2}$

Solve for r

Divide by 7.188π both sides

$r^{2}=\frac{11,000}{7.188\pi}$

square root both sides

$r=22.07\ in$

5 0

3 years ago

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Help please answer really quick. I really need help. ( Math )

EleoNora [17]

Answer:

0.25 lbs

<h3>Explanation </h3>

You can translate the 1/2 a pound into 0.5lbs, which is equivalent. Then, this is the easier part. Sarah divides the clay into <u>t</u><u>w</u><u>o</u> equal pieces. This is asking you to halve 0.5lbs. The answer being 0.25lbs

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3 years ago

7.8 is 65% of what number

Natalka [10]

7.8 = 0.65x

x = 100/65 * 78/10

x = 10/5 * 6

x = 12

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3 years ago

Find the supplement of the given angle. Then draw the two angles as linear pairs. Label each angle with its measure.

Alex777 [14]

The supplement angle of angle ABC is 108 degrees because, supplement angles mean angles that add up each other to 180 degrees so 180-72=108

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3 years ago

Hurry I'm timed hurryryeye

kozerog [31]

Answer:

<u>It</u><u> </u><u>is</u><u> </u><u>1</u><u>7</u><u>1</u>

Step-by-step explanation:

${x}^{2} - 3y + x$

substitute for x and y:

$= {(14)}^{2} - 3(13) + 14 \\ = 196 - 39 + 14 \\ = 171$

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2 years ago

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