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worty [1.4K]
3 years ago
15

If x - 2y + z = 5 and -x + 3y - z = 2, then y = ?

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
5 0

Answer:

y=10

Step-by-step explanation:

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Pls help I’ll brainlest
lora16 [44]

Answer:

8

Step-by-step explanation:

Jeremiah bought x toy sets for $20 each and then a video game for $60. Jeremiah spent a total of $220. How may toy sets did he buy?

To find our answer, we can solve the equation:

20x + 60 = 220

        -60    -60

20x = 160

/20    /20

x = 8

Jeremiah bought 8 toy sets!

I hope this helps :)

5 0
2 years ago
Question:4x²-9 <br>answer:​
statuscvo [17]

Step-by-step explanation:

4x^2-9

=(2x)^2 -3^2

=(2x+3) (2x-3)

Hope this helps you.

3 0
2 years ago
The ages of three friends are consecutively one year apart. Together, their ages total 30 years. What is the age of the youngest
nadya68 [22]

Answer:

The age of the youngest friend is 9 years old.

Step-by-step explanation:

3a = 30 - 3

= 27 ÷ 3

= 9

= 9 + 10 + 11 = 30

= 9 is the smallest number. So, the youngest friend is 9 years old.

8 0
3 years ago
What is the area of a circle with a radius of 6 inches?
Vika [28.1K]

Answer:

The answer to your question is   113.04 in²

Step-by-step explanation:

To solve this problem substitute the values in the formula and simplify.

Data

Area = ?

radius = 6 in

π = 3.14

Formula

Area = π x r²

Substitution

Area = (3.14) x (6)²

Simplification

Area = 3.14 x 36

Result

Area = 113.04 in²

7 0
3 years ago
A store pays $29.99 for a pair of jeans. The percent of markup is 20%. What is the selling price, including markup, for 5 pairs
Zanzabum

Answer:

$179.94  for 5 pairs of jeans

Step-by-step explanation:

4 0
3 years ago
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