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wolverine [178]
3 years ago
15

21) BRAINLIEST AND 10+ POINTS!! PLS HELP ASAP :)

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
5 0
9.4 years would be the answer
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Substitute for y and rewrite the system of equations as a single equation which can be used to solve for x.
Vlada [557]

Answer:

x = 3  and y = 1

Step-by-step explanation:

Given equations

y=3x-8 and y=4-x

We will substitute y from second equation in the first and get:

4-x = 3x-8   first we will add (+x) to both sides and get

4-x+x = 3x+x-8 =>   4 = 4x-8 now we will add (+8) to the both sides and get

4+8 = 4x-8+8 => 12 = 4x  now we will change the sides of equation and get

4x = 12 => x = 12/4 = 3 => x=3  now we will replace x=3 in the second equation

y= 4-x = 4-3=1 => y=1  

Finally we have  (x , y) = ( 3 , 1)

God with you!!!

7 0
3 years ago
A pet store has 10 puppies, including 4 poodles, 3 terriers and 3 retrievers. If Rebecca and Aaron in that order each select one
VikaD [51]
4/20, 20% chance. The store has 20 puppies. Out of them is 4 poodles. Divide 4 by the total(20). And you get 0.2, remove the decimal place and add it in front of the 0 .02 reverse the numbers 20. Replace the period with a %.
5 0
1 year ago
6(x+5) please solve it using at least two methods
umka21 [38]

Answer:

6x+30

Step-by-step explanation:

Multiply 6 by x and 6 by 5, or x 6 times and 5 6 times

5 0
3 years ago
4x+17=23. Find the solution to this equation
Elden [556K]

Answer:

1.5

Step-by-step explanation:

4x + 17 = 23

     - 17    -17

4x=6

then divide 4 from both sides and you get

x=1.5

7 0
3 years ago
Read 2 more answers
-b+10a-5 in standard form
ludmilkaskok [199]

Answer:

10a-b-5

Step-by-step explanation:

-b+10a-5 in standard form

is

10a-b-5

hoped this helped :)

7 0
3 years ago
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