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vlabodo [156]
3 years ago
12

Solve -a + 7 = 2a - 8. a=5 D a= 15 a -3 = B a

Mathematics
1 answer:
Oliga [24]3 years ago
7 0
We want to solve for a
-a + 7 = 2a - 8
we will add 8 to both sides and simply to
-a + 15 = 2a
We will then add a to both sides and simply to
15 = 3a
We then divide by 3 on both sides to get
a=5
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Jenny has some tiles in a bag. The tiles are of three different colors: purple, pink, and orange. Jenny randomly pulls a tile ou
umka21 [38]
Number of experimental pinks drawn / number of experimental picks...

4/(4+24+22)

4/50

2/25  or (8%)
3 0
4 years ago
HELP NEEDED ASAP!!
marin [14]

Answer:

a. 0.43*125=

53.75

b. this is a little harder we need to find what the conversane is for ec to us

ec 0.43= 1 tt so

6.3*0.43

2.71 ec=1 us

850.94 divided by 2.71

314 us

Hope This Helps!!!

5 0
2 years ago
Scott is using a 12 foot ramp to help load furniture into the back of a moving truck. if the back of the truck is 3.5 feet from
Over [174]

A 12 feet ramp is used to load stuff into the truck which is at a height of 3.5 feet from ground.

The ramp forms a Right triangle with ground and height of truck.

In the Right triangle, hypotenuse is 12 feet and height is 3.5 feet. We need to find horizontal base of right triangle.


We can use Pythagorean theorem that is given by :-

(Hypotenuse)² = (Base)² + (Height)²

(12)² = (Base)² + (3.5)²

144 = (Base)² + 12.25

(Base)² = 144 - 12.25

(Base)² = 131.75

(Base) = √131.75

Base = \sqrt{131.75} = 11.48 \; feet

So, horizontal distance is 11.48 feet.

5 0
4 years ago
I need help with this.​
vodka [1.7K]
Answer : HF ≈ 23.2 ft



Explanation :
Using the sine ratio in the right triangle.
sin75° = = =
Multiply both sides by 24
24 × sin75° = HF , thus
HF ≈ 23.2 ft ( to the nearest tenth )
6 0
3 years ago
Use the table to work out the values of a, b,
Dvinal [7]
So to find the value of -3 do the following process:

Insert the -3 in the x’s in the equation on the top of the table

y= 5x -3x to the second power + 3

y= 5 (-3) -3(-3) to the second power + 3

Then continue to simplify the equation

y= -15 + 9 to the second power + 3

y= -15 + 84

y = 69

Y= 69 for the chart for -3

For b, c, and d insert the number in the x values and simplify like the previous equation.

If you are confused, feel free to ask questions. I hope this is effective and helps you in your studies.
4 0
2 years ago
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