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inna [77]
3 years ago
11

Please someone help I don’t understand this

Mathematics
1 answer:
irina [24]3 years ago
5 0

Answer:

336

Step-by-step explanation:

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Solve each system of equation by substitution y=-x+5 x+2y=2​
Likurg_2 [28]

Answer:

x = 8

y = -3

Step-by-step explanation:

Given :

y = -x + 5 ...................... equation 1

x + 2y = 2 ........................ equation 2

solving the system of linear equation by substitution method , substitute equation 1 into equation 2 , that is

x + 2(-x+5) = 2

x - 2x + 10 = 2

-x + 10 = 2

collect the like terms

10 - 2 = x

therefore :

x = 8

substitute x = 8 into equation 1 to find the value of y , that is

y = -8 + 5

y = -3

Therefore :

x = 8

y = -3

3 0
3 years ago
Somebody who knows how to do this?? plz answer all the questions correctly thanks!
Ksju [112]

Answer:

a) 5/21

b) 4/21

c) 4/21

d) 8/21

Step-by-step explanation:

total number of coins: 21

a) number if dollars: 5

therefore fraction is 5/21

b) number of quarters: 4

therefore fraction is 4/21

c) number of dimes: 4

therefore fraction is 4/21

d) number of nickels: 8

therefore fraction is 8/21

4 0
3 years ago
The temperature in Monarch, Wisconsin, was -3° F at 6:00 a.m. The temperature rose 12 degrees in 9 hours. What was the temperatu
ch4aika [34]

Answer:

9 degrees

Step-by-step explanation:

The temperatire was -3 and then rose by 12, -3 + 12 = 9

3 0
3 years ago
Evaluate each expression.<br> 3√9 ∙ 3√3
statuscvo [17]

Answer:

27

Step-by-step explanation:

6 0
3 years ago
What is the value of g(f(-5))?
fredd [130]

Replace x in the equation for f(x) with -5:

|2x +9| = |2(-5) +9| = |-10 +9| = |-1| = 1

Now find x 1 and see where the graph of G(x) crosses the Y :

It crosses ay Y = 5

The answer is A. 5

8 0
2 years ago
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