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Karolina [17]
3 years ago
8

Use elimination method to solve the system of equations -x+y=7 and x+y=1

Mathematics
1 answer:
Sauron [17]3 years ago
8 0

Answer:

(x, y)= (-3, 4)

Step-by-step explanation:

eliminate the variable by adding the equations

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Stacy and Travis are rock climbing. Stacy’s rope is 4 feet shorter the 3 times the length of Travis rope. Stacy’s rope is 23 fee
prohojiy [21]
23×3=69
69-4=65
travis's rope is 65ft long.
7 0
3 years ago
PLEASE HELP!<br><br> Fill in the reason for statement 3 in proof below:<br><br> SAS<br> AA<br> SSS
ivann1987 [24]

Answer:

SAS

Step-by-step explanation:

ΔABD ~ ΔECD is similar through:

S - because ED = CD (Given)

A - same angle ∠D (Statement 2)

S - because AD = BD (Given)

Cheers!

5 0
3 years ago
Read 2 more answers
If the ratio of boys to girls at the school is 2:5 and there are 40 boys how many girls are there?
sukhopar [10]

Answer:

100 girls

Step-by-step explanation:

The ratio of boys : girls is 2 : 5.

In other words, boys are 2 parts of the school while girls are 5 parts of the school.

Since there are 40 boys, 2 parts of the school is 40. Thus:

2p = 40\\p = 20

1 part is 20.

Since there are 5 parts girls, there are

5p = 5*20 = 100

100 girls.

Answer: 100 girls

5 0
3 years ago
16) Total asset turnover is used to evaluate: A. The efficiency of management's use of assets to generate sales. B. The necessit
Mariulka [41]

Answer:

A. The efficiency of management's use of assets to generate sales.

Step-by-step explanation:

The total asset turnover is calculated by dividing the sales to the assets. It measures the ability for a company so that in efficient way it would generate the sales.

By using the assets of the company, the company is able to generate the sales that could help the company for achieving the goals and objectives

Therefore according to the given situation, the a option is correct

6 0
3 years ago
What is the solution set for this inequality?
Ostrovityanka [42]

Answer:

X<-4

Step-by-step explanation:

-3x+10>22

subtract 10 to both sides

-3x>12

divide by -3 on both sides

when you divide by a negative number you flip the sign so the answer will be x<-4

8 0
2 years ago
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