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lara31 [8.8K]
3 years ago
7

Please view this imagine & help meee:(

Mathematics
1 answer:
EleoNora [17]3 years ago
6 0

Answer:

20: 9t+12

21: 18x

22: 105x+9

24: 156r

25: 3x+11

26: 25.2x

28: 56a

29: 1.5n

30: 13q

Step-by-step explanation:

hope this helped

brainliest please

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Find the slope of every line that is perpendicular<br> to this one
ArbitrLikvidat [17]

Answer:

1

Step-by-step explanation:

The slope of this line is -1 or -1/1, and to find the perpendicular slope you find the opposite of the reciprocal, which in this case would be 1/1 which simplifies to 1.

7 0
4 years ago
10+5-7=3y<br><br> -10x+5x+5=-15<br><br> 3x+2x-4x+10<br><br> pre algebra 8th grade math
jasenka [17]

Answer:

1) y=8/3=2 2/3   2) x=4    3) x+10

Step-by-step explanation:

1) 10+5-7=3y

Calculate the sum or difference.

8=3y

Swap the sides of the equation.

3y=8

Divide both sides by 3.

y=8/3=2 2/3

2) -10x+5x+5=-15

Collect like terms.

-5x+5=-15

Move the constant to the right-hand side and change the sign.

-5x=-15-5

Calculate the difference.

-5x=-20

Divide both sides by -5.

x=4

3) 3x+2x-4x+10

Collect like terms.

(3+2-4)x+10

Calculate the sum or difference.

1x+10

When the term has a coefficient of 1, it doesn't have to be written.

x+10

Hope this helps :)

5 0
3 years ago
What are the solutions of the equation 9x4 – 2x2 – 7 = 0? Use u substitution to solve.
Debora [2.8K]

Answer:

the answer is 25

Step-by-step explanation:

and you get it by multiplying 9×4 keep the answer on paper then do 2×2 which is 4 subtract the two answers and subtract 7 and then you get 25, your welcome

6 0
3 years ago
Read 2 more answers
1. Joyce took a 3-day bicycle trip. On the second day of the trip, she rode 36 miles. On the third day she rode
vivado [14]
So you go 108-36 which equals 72 than you take 72 and divide it by 4 which 18 so she rode 18 miles the first day
4 0
3 years ago
Simplify 115(4) help pleaseee
Mice21 [21]

Answer:

I got 460.

Step-by-step explanation:

You multiply 115 by 4. Right?

5 0
3 years ago
Read 2 more answers
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