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djverab [1.8K]
3 years ago
5

Can u guys help me on number 9 ,plz :)

Mathematics
1 answer:
Dima020 [189]3 years ago
7 0
For number nine you have to find the area for the three figures. so multiply 5x3=15. then multiply 6x5=30. lastly multiply 5x2=10. add all those numbers up and get 65
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What is the constant of proportionality that relates the number of cookies made, y, to the number of cups of sugar used, x ? A r
dmitriy555 [2]

Answer:

24


Step-by-step explanation:

Direct variation (with constant of proportionality) has the form:

A=kB

Where,

  • A & B are the 2 variables being compared
  • k is the constant of proportionality

Using cookies, y, and sugar, x, we can write:

y=kx

Substituting y=96 and x=4, and solving for k, we have:

96=k(4)\\\frac{96}{4}=k\\k=24

Thus, constant of proportionality is 24

3 0
3 years ago
The expression 16t2 represents the distance in feet an object falls after t seconds. The
allsm [11]

Answer:

824 feet

that is becuase the greastist common factor adds up to that

8 0
3 years ago
A video of Mr. Satyam’s class discussing mathematical strategies won a STEM award. 8% of the videos won awards. There were 24 aw
LekaFEV [45]

Answer:

There were 300 videos.

Step-by-step explanation:

Since there are 24 videos that got awards, and that's only 8% of the total videos, you put those together. We want the number of 100% of the videos. I would solve this by setting up a ratio and solving for x. This is would look like:

\frac{24}{8} =\frac{x}{100}  

In order to get to 100, you must multiply 8 by 12.5. Therefore, you can multiply 24 by 12.5 to complete the ratio. That would make the ratio look like:

\frac{24}{8} =\frac{300}{100}

Therefore there are 100% of the videos in the contest is 300.

6 0
3 years ago
The four-member math team at Pecanridge Middle School is chosen from the math club, which has three girls and five boys. How man
cestrela7 [59]

Answer:

Total\ Selection = 30\ ways

Step-by-step explanation:

Given

Girls = 3

Boys = 5

Required

How many ways can 2 boys and girls be chosen?

The keyword in the question is chosen;

This implies combination and will be calculated as thus;

Selection =\  ^nC_r = \frac{n!}{(n-r)!r!}

For Boys;

n = 5 and r = 2

Selection =\  ^5C_2

Selection = \frac{5!}{(5-2)!2!}

Selection = \frac{5!}{3!2!}

Selection = \frac{5 * 4 * 3!}{3!*2 * 1}

Selection = \frac{20}{2}

Selection = 10

For Girls;

n = 3 and r = 2

Selection =\  ^3C_2

Selection = \frac{3!}{(3-2)!2!}

Selection = \frac{3!}{1!2!}

Selection = \frac{3 * 2!}{1 *2!}

Selection = \frac{3}{1}

Selection = 3

Total Selection is calculated as thus;

Total\ Selection = Boys\ Selection * Girls\ Selection

Total\ Selection = 10 * 3

Total\ Selection = 30\ ways

5 0
4 years ago
A graph of what has space between possible data values
MakcuM [25]

Answer:

A discrete graph is a graph that is composed of distinct isolated points. A discrete graph has space between possible data values

Step-by-step explanation:

i hope this helps :)

6 0
4 years ago
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