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nexus9112 [7]
3 years ago
12

10 points

Mathematics
1 answer:
slavikrds [6]3 years ago
8 0

Answer:

A: -20

Step-by-step explanation:

first, you have to solve the second equation to get y, and y= -24, then you solve the first

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The owner of a greenhouse wants to test the effectiveness of a new fertilizer on African violets. She has 60 violet seedlings th
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Answer:

60, 37, 34, 28, 40

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ED2021

3 0
3 years ago
Required information NOTE: This is a multi-part . Once an answer is submitted, you will be unable to return to this part A club
algol13

Answer:

491400

Step-by-step explanation:

Given : A club has 28 members.

To Find : . How many ways are there to choose four members of the club to serve on an executive committee?

Solution:

We are supposed to choose  four members of the club out of 28.

So, we will use combination

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

n = 28

r = 4

Substitute the values :

^{28}C_{4}=\frac{28!}{4!(28-4)!}

^{28}C_{4}=\frac{28 \times 27 \times 26 \times 25 \times 24!}{4!(24)!}

^{28}C_{4}=\frac{28 \times 27 \times 26 \times 25 \times 24}{4 \times 3 \times 2 \times 1}

^{28}C_{4}=491400

Hence there are 491400 ways o choose four members of the club to serve on an executive committee

8 0
3 years ago
20% of a is 11. What is a?​
Reika [66]

Answer:

a=55

Step-by-step explanation:

This question is asking for you to find the whole (a), given a part (11). This can be done through multiplication. 20% is 1/5 of 100%. This means to find the whole number, you should multiply the part by 5. 11*5=55. So, a must equal 55.

We can check this answer by working backward. Do this by finding 20% of 55, and checking to see if it is 11. To find a percentage of a number, multiply that number by the percent in decimal form. So, 20% of 55 is equal to 0.2*55, which is 11. Therefore, the answer is correct.

5 0
3 years ago
Read 2 more answers
What type of correlation is suggested by the scatter plot?
Bas_tet [7]
No correlation is suggested
8 0
3 years ago
Y = -12 when<br> x = -3 ,<br> find y when<br> x = -1 .
Juliette [100K]

Answer:

y=-4

Step-by-step explanation:

If y=4x

and y=-1

y=-1×4

y=-4

7 0
3 years ago
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