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WITCHER [35]
3 years ago
7

Solve for x, -8x-7x simplify

Mathematics
1 answer:
34kurt3 years ago
3 0

Answer:8x-7x=0

Step-by-step explanation:

8x-7x=0

We simplify the equation to the form, which is simple to understand

8x-7x=0

We move all terms containing x to the left and all other terms to the right.

+8x-7x=0

We simplify left and right side of the equation.

+1x=0

We divide both sides of the equation by 1 to get x.

x=0

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Solve the equation to get x
Mariulka [41]

Answer:

the answer is

Step-by-step explanation:

x=1/2y+5---i

4x+3y=-20 ----ii

putting value of x in eqn Ii

4×(1/2×y+5)+3y=-20

2y+5+3y=-20

5y+5=-20

5y=-20-5

5y=-25

y=-25/5

y=-5

putting value in eqn I

x=1/2×-5+5

x=-5/2+5

x=5/2

4 0
2 years ago
Does anyone knows this- it’s for geometry. i need help solving any
zzz [600]

Answer:

SSS stands for Side Side Side triangle similarity.

SAS stands for Side Angle Side triangle similarity.

Step-by-step explanation:

1. is SSS because all the side of the two triangles are equal to each other.

2. is SAS because two side and one angle of the two triangles are equal.

3. SAS

4. SAS

5. SSS.

6. Congruent by Angle Angle but it is not said here so I would say SAS.

7. SAS

8. SSS

9. SSS

10. SSS

11. SAS

12 SSS

8 0
3 years ago
Please help me with math
gogolik [260]

Answer:

part one:

6 3

22 1

30 0

part two:

0.50*s+4*a=15

Step-by-step explanation:

part one:

firstly:

6 individual songs cost 6*0.50= 3 dollars

she has 15 dollars so after downloading 6 individual songs that cost 3 dollars together

it means that she has only 15-3=12 dollars to download full albums

so 12/4=3 albums

because 4 dollar cost one album and with 12 dollars she can buy just 3 albums

secondary:

she downloaded 1 album

and one album cost 1*4=4 dollars

she has 15 dollars ,after buying 1 album

she has 15-4=11 dollars

so she can download 11/0.50=22 individual songs

so she can download 22 individual songs.

the last one:

she downloaded 30 individual songs

that all together cost 30*0.50=15 dollars

but she has 15 dollars at all so she cant buy any album because she spent all her money in individual songs.

because 15-15=0 money left

part two:equation

0.50*s+4*a=15

8 0
3 years ago
Three workers have to do a certain job. The first worker can finish the job in 8 hours. The second worker can finish the job in
Ainat [17]

This means that...

the first worker does 1/8 of the job each hour.

the second worker does 1/4 of the job each hour.

the third worker does 1/4 of the job each hour.

So together they get 1/8+1/4+1/4 of the job done per hour.

Rate: 5/8 of the job per hour

Now if we know the rate, the job will be finished in...

1/(5/8) hours ----> 1.6 hours or 1 hour and 36 minutes

answer: 1.6 hours or 1 hour and 36 minutes

5 0
3 years ago
Maria took a test that had 20 questions. She got 4/5 of the questions correct. How many questions did Maria get correct?
Leni [432]
4     x
5     20

80/5=16

20(total questions)/5(total questions, simplified)=4
Multiply 4 by 4(correct questions).
The second method is better for a student in elementary!
7 0
3 years ago
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