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julia-pushkina [17]
3 years ago
9

To solve a problem, we often _________ the given information into algebraic expressions and equations.

Mathematics
1 answer:
bulgar [2K]3 years ago
4 0
\frac{-b\pm\sqrt{b^2-4ac}}{4a}
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Sarah drove 40 miles per hour. In 3 hours, Sarah drove 120 miles. Which is a valid proportion to represent the problem? StartFra
kaheart [24]

Answer:

120 over 3

Step-by-step explanation:

Distance/time=speed

only other division is distance/speed=time but 120/40 isnt an option

Fractions mean division so 120 over 3 = 120/3

Im twelve years old

5 0
3 years ago
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EXPLAIN HOW TO FIND THE AREA OF THE<br> SHADED Region.
marin [14]

Answer:

Find the area of the circle then divide by two

Step-by-step explanation:

7 0
3 years ago
a scuba diver descended at a rate of 2 1/4 per second. If 0 represents the surface of the water and distances below the surface
Shtirlitz [24]

Answer:

The location will be at - 28\frac{1}{8} units.

Step-by-step explanation:

A scuba diver descended at a rate of 2\frac{1}{4} units per second.

Now, if 0 represents the surface of the water and distances below the surface are negative, then after 12\frac{1}{2} seconds the location of the diver will be given by the followings :

In one second the diver descends by 2.25 units depth.

So, in 12.5 seconds the diver will descend by (2.25 \times 12.5) = 28.125 units i.e. 28\frac{1}{8} units depth.

Therefore, the location will be at - 28\frac{1}{8} units. (Answer)

6 0
3 years ago
Two cars are traveling in the same direction. the first car is going 40 mph and the second car is going 55 mph. the first car le
jarptica [38.1K]
I hope this helps you




distance=speed×time



first cars time t




second cars time t+3



same distance


distance=55.t


distance=40. (t+3)



55t=40 (t+3)



55t-40t=120


15t=120


t=8


t+3=11
4 0
3 years ago
-2x+5=4x-7 solve for x. Show all work
Neko [114]

Answer:

2=x

Step-by-step explanation:

-2x+5=4x-7

+2x     +2x

5=6x-7

+7     +7

12=6x

/6

2=x

7 0
3 years ago
Read 2 more answers
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