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jek_recluse [69]
3 years ago
11

Examine the system of equations.

Mathematics
2 answers:
tester [92]3 years ago
7 0

Answer:

4,-3

Step-by-step explanation:

Zigmanuir [339]3 years ago
5 0

The answer is 4,-3

Irfcdxsaacd d

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An ice skater practiced for 18 hours last week. In that time, she did 306 jumps. On the average, how many jumps did she try per
Kaylis [27]

Answer:

17

Step-by-step explanation:

306/18=17

3 0
3 years ago
Solve for<br> 20 = 5(x + 1)<br> X =
Nataly [62]

Answer:

x = 3

Step-by-step explanation:

5(x+1) = 20

x+1 = 20/5

or, x+1 = 4

or, x = 4-1

so, x = 3

6 0
2 years ago
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What number would you add to both sides of x2 – 20x = 5 to complete the square?
lara31 [8.8K]

the answer would be100


7 0
3 years ago
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A. Solve -4x - 4 = 4. Show your work. <br> B. Verify your solution.
Yuliya22 [10]

Answer:

-4x=4+4

x=8/-4

x= -2

not sure how I'm supposed to verify

4 0
2 years ago
The difference in age between Brita and her daughter Eva is 30 years. The sum or their ages 118. How old is Eva?
Alona [7]

Answer:

Eva's age is 44 years

Step-by-step explanation:

Let

x ----> Brita's age

y ----> Eva's age

we know that

The sum or their ages 118

so

x+y=118 ----> equation A

The difference in age between Brita and her daughter Eva is 30 years

so

x-y=30 ----> equation B

Solve the system by elimination

Adds equation A and equation B

x+y=118\\x-y=30\\---------\\x+x=118+30\\2x=148\\x=74

<em>Find the value of y</em>

substitute the value of x in any equation

74+y=118\\y=118-74\\y=44

therefore

Eva's age is 44 years

3 0
3 years ago
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