2 years ago

The price of a sweater was reduced from $20 to $12. By what percentage was the price of the sweater reduced?

Mathematics

1 answer:

rosijanka [135]2 years ago

5 0

The price of the sweater was reduced by 40%.

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At a school, 147 147 students play at least one sport. This is 35 35% of the students at the school. How many students are at

dsp73

Answer:

420

Step-by-step explanation:

Assuming this is the problem:

At a school, 147 students play at least one sport. This is 35% of the students at the school. How many students are at the school?

147/35 = x/100

35x=147*100

35x=14,700

x=420

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3 years ago

Using the law of sines, if m

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Huh? not sure what you mean

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3 years ago

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I need help answering the question in the picture provided

adoni [48]

answer:

(a).

Equation of circle is x² + y² - 25 = 0

(b).

(-5, 0) » yes

(√7, 1) » no

(-3, √21) » no

(0, 7) » no

Step-by-step explanation:

(a).

If centred at origin, centre is (0, 0)

General equation of circle:

${ \boxed{ \bf{ {x}^{2} + {y}^{2} + 2gx + 2fy + c = 0}}}$

but g and f are 0:

${x}^{2} + {y}^{2} + c = 0 \\ but : \\ c = {g}^{2} + {f}^{2} - {r}^{2} \\ c = { - 25}$

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2 years ago

Mr. Petersen counted the number of coins collected by the students in his coin club and prepared the following line plot.

zimovet [89]

Answer:21

Step-by-step explanation:

Add them all up

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2 years ago

What happens when you combine -3x+2x

Elan Coil [88]

-6 okokokokokokokokokokok

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3 years ago