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3 years ago

9

Becky made 63 carnival masks which is 30 % less than the number her brother made How many carnival masks did beck and her brothe

r make in total?

1 answer:

LenaWriter [7]3 years ago

8 0

Answer:

sorry im not smart

Step-by-step explanation:

sorry

THis is akward lol

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I need help with this question?

tekilochka [14]

Answer:

8.5 h = 510 min

Step-by-step explanation:

An hour is equal to 60 minutes. Half an hour is 30 minutes.

We can break "8.5" into 8 hours and 0.5 of an hour (which is 30 minutes).

Knowing this, we can multiply 8 by 60 since each hour is 60 minutes. We then get 480. We still need to add the remaining 0.5 of an hour (30 minutes) so we add 480 + 30. We then get 510.

Therefore 8.5 hours = 510 minutes. Hope this helps!

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3 years ago

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What is the equation of the line that passes through the point (1,7) and is perpendicular to the graph of Y=-14X+11

vlada-n [284]

Y=1/14x might be the answer

4 0

3 years ago

Given the following winning percentages of the teams in a league (for a single year) compute the within-season standard deviatio

Masja [62]

Answer:

(b) 0.251

Step-by-step explanation:

1. Standard deviation equation:

$SD=\sqrt{\frac{\sum\limits^N_i {(x_{i}-X)^{2} } }{N} }$

Where X is the mean of the data, and N the amount of data. Then, N=5

2. Estimate the Mean:

$X=\frac{0.750+0.750+0.200+0.600+0.200}{5}=\frac{2.5}{5}=0.5\\$

3. Caclulate Standard deviation:

$SD=\sqrt{\frac{{(0.750-0.500)^{2}+(0.750-0.500)^{2}+(0.200-0.500)^{2}+(0.600-0.500)^{2}+(0.200-0.500)^{2} } }{5} }$

$SD=\sqrt{\frac{0.315}{5} }=\sqrt{0.063}\\SD=0.251$

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3 years ago

A rectangular basketball court has perimeter of 232 feet. The length of the court is 32 feet greater that the width. What is the

Phoenix [80]

Answer:

width=100 feet and length=132feet

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3 years ago

There are 30 students in a class, including 16 boys. The ratio of girls to boys would be 7 over 8.

Genrish500 [490]

Answer:

i dont understand- theres 3 ways u can put them tho 7:8 , 7 to 8 , or 7/8

Step-by-step explanation:

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3 years ago