3 years ago

What is the measure of arc AC? A) 33 B) 38 C) 28 D) 45

Mathematics

1 answer:

puteri [66]3 years ago

4 0

Answer:

Step-by-step explanation:

7x-4 is two times 2.5x+4

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Free points, please solve -2m+36=2(6m-3)?

Elan Coil [88]

Answer:

$\Huge \boxed{m=3}$

Step-by-step explanation:

$-2m+36=2(6m-3)$

Expanding brackets.

$-2m+36=12m-6$

Adding 2m and 6 to both sides.

$36+6=12m+2m$

Combining like terms.

$42=14m$

Dividing both sides by 14.

$3=m$

8 0

3 years ago

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A spring coat that cost $60.00 was marked up 20% of the cost. What was the price increase?

Irina18 [472]

The price increase was $12.

x 0.2

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Hope this helped!

7 0

3 years ago

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Ms. Ellis expected 50 families to attend parent teacher conference but 60 families attended. What is the percent error?

natulia [17]

Answer:

20%.

Step-by-step explanation:

That is (60 - 50) / 50

= 10/50

= 1/5

To convert to a percent we multiply by 100:

= 20%.

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3 years ago

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A dry cleaner charges $18 to clean 4 pairs of pants. How many pairs of pants can be cleaned for $27 at the same rate?

blondinia [14]

4 pairs of pants for $18.

Divide price by quantity to get the cost of 1 pair of pants:

18 / 4 = 4.50 per pair.

Divide 27 by 4.50 to find number of pairs:

27 / 4.5 = 6

6 pairs of pants can be cleaned for $27.

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3 years ago

A compact disc is designed to last an average of 4 years with a standard deviation of 0.9 years. What is the probability that a

jarptica [38.1K]

<span>3 is 1.0 below the mean. That is 1.0 / 0.9, or 1.1111... standard deviations below the mean.
So look up z < -1.11 on your graphing calculator.
It should be around 0.1335 or 13.35%</span>

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3 years ago