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ss7ja [257]
2 years ago
9

Solve 70=-2.5x (one-step equation)

Mathematics
1 answer:
Lapatulllka [165]2 years ago
7 0

Answer:

-28

Step-by-step explanation

70/-2.5=-2.5x/-2.5      divide

-28=x  

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If sarah is 24 years younger than her mother and if the sum of their age is 68 how old is sarah
UkoKoshka [18]
The sum of two numbers if just the numbers added together, so you would just need to do some simple algebra.

The ages added together are 68, and the opposite of addition is subtraction!

(total age) - (sarahs age) = (mothers age)
68 - 24 = 44

44 should be her mothers age!


(If you were trying to calculate the sum of their ages, you would just add them together, and 24 + 44 = 68)

7 0
2 years ago
PLEASE HELP
shtirl [24]

Answer:

70 m

Step-by-step explanation:

AB makes a 30-60-90 triangle with the wall.

AC makes a 45-45-90 triangle with the wall.

In a 30-60-90 triangle, the short leg (opposite of the 30° angle) is half the hypotenuse.

In a 45-45-90 triangle, the legs are the same length.

So the distance between the left wall and the laser is 60/2 = 30 m.

The distance between the right wall and the laser is 40 m.

The total distance is therefore 70 m.

6 0
2 years ago
Find the y-intercept of the line that passes through the given point and has the given slope : (-2,-1); m=-3
BARSIC [14]

Answer:

0, -7

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What's 5and24/10 divided by 4?
Alchen [17]
First, convert 5 and 24/10 into a mixed fraction:

5 and 24/10 = 74/10

Now, divide 74/10 by 4:

74/10 ÷ 4 = 74/10 × 1/4
                
= 74/40
                = 37/20
                = 1 and 17/20

(Remember that dividing requires you to reciprocate 4)

Hope this helps!


5 0
3 years ago
Evaluate the expression when c = -6 And y = 7<br><br> y - 9c
GrogVix [38]
The answer is 61. hope that help.
5 0
3 years ago
Read 2 more answers
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