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alex41 [277]
2 years ago
11

I would really like to get some help :)

Mathematics
2 answers:
Maru [420]2 years ago
6 0

Answer: I don't know about the formula, but consider the logic below.

Step-by-step explanation:

Martina = 12

Joey = 0

12 x 3 = 36

36 - 3 = 33

If Joey was 21, Martina would be 33.

Nezavi [6.7K]2 years ago
3 0

Answer:

y = 15

Step-by-step explanation:

in 3 years Martina would be 15 and joey would be 5.

5 · 3 is 15 so

x being joey

y being martina

x · 3 = 15

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Monica’s school band held a car wash to raise money for a trip to a parade in New York City. After washing 125 cars, they made $
nikklg [1K]

The system of linear equations represents the situation is;

x + y = 125

x + y = 1255x + 8y = 775

<h3>Simultaneous equation</h3>

Simultaneous equation is an equation in two unknown values are being solved for at the same time.

let

  • number of quick washes = x
  • number of premium washes = y

x + y = 125

5x + 8y = 775

From equation (1)

x = 125 - y

5x + 8y = 775

5(125 - y) + 8y = 775

625 - 5y + 8y = 775

- 5y + 8y = 775 - 625

3y = 150

y = 150/3

y = 50

  • Substitute y = 50 into

x + y = 125

x + 50 = 125

x = 125 - 50

x = 75

Therefore, the number of quick washes and premium washes Monica’s school band had is 75 and 50 respectively.

Learn more about simultaneous equation:

brainly.com/question/16863577

#SPJ1

3 0
1 year ago
1. Determine the missing value in this table of values for the function y = 2
koban [17]

Answer:

-1

Step-by-step explanation:

Ghana is a great place to work for and it is the most versatile and affordable way to do business with you in the future of the following statements is of a hole in your heart to be added

5 0
2 years ago
A light bulb consumes 960 watt hours per day how long does it take to consume 4320 watt hours
VARVARA [1.3K]

Since we need to determine how long it takes for the watt hours to consume 4320 watt hours, we would need to divide.

We would simply divide.

4320/950= 4.5

The 4.5 represents how long it would take for the light bulb to consume 4320 watt hours.

Therefore, the answer would be 4.5 days.

<u>Answer</u>

4.5 days

<u>Recap</u>

1. We read the problem and determined that in order to solve the problem we would need to divide.

2. We then divided 4320/960= 4.5

3. We came to the conclusion that 4.5 days would be the answer.

7 0
3 years ago
Mr. Degaldo sells sub sandwiches. He spends $400 on 200 subs that he sells for $5 each over the week . On wednesday, his refrige
masya89 [10]

Answer:

he made $50 in profits

Step-by-step explanation:

$5 x 90 subs = $450

$450 - $400 = 50

6 0
2 years ago
2a-2,2a+2,6a-2<br>ans. <br>1) -3 <br>2) -2 <br>3) 2 <br>4) 3​
Gala2k [10]

Answer:

the answer is 3 because 2a-2a+6a-2+2+2

2a-2a=0

6a-2+2+2=

6a-6

a= 3

8 0
2 years ago
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