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Degger [83]
2 years ago
10

Make sure to show your work :))

Mathematics
1 answer:
Sergeu [11.5K]2 years ago
8 0

Answer:

b

Step-by-step explanation:

-70+(-7)= -77

-77-(-7)=-70

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How to Divide 80 into the given Fractions
Virty [35]
7/10 of 80 is 56
4/5 of 80 is 64
3/4 of 80 is 60
5/8 of 80 is 50
1/2 of 80 is 40
1/4 of 80 is 20
1/10 of 80 is 8
1/8 of 80 is 10

to work these out divide the number by the denominator (bottom number) and multiply by the numerator (top number)
4 0
3 years ago
Jason and Britton are driving to St. George. Jason got a 20 mile head start and drove an
harina [27]

Answer:

  2 hours, 150 miles

Step-by-step explanation:

The relation between time, speed, and distance can be used to solve this problem. It can work well to consider just the distance between the drivers, and the speed at which that is changing.

<h3>Separation distance</h3>

Jason got a head start of 20 miles, so that is the initial separation between the two drivers.

<h3>Closure speed</h3>

Jason is driving 10 mph faster than Britton, so is closing the initial separation gap at that rate.

<h3>Closure time</h3>

The relevant relation is ...

  time = distance/speed

Then the time it takes to reduce the separation distance to zero is ...

  closure time = separation distance / closure speed = 20 mi / (10 mi/h)

  closure time = 2 h

Britton will catch up to Jason after 2 hours. In that time, Britton will have driven (2 h)(75 mi/h) = 150 miles.

__

<em>Additional comment</em>

The attached graph shows the distance driven as a function of time from when Britton started. The distances will be equal after 2 hours, meaning the drivers are in the same place, 150 miles from their starting spot.

3 0
1 year ago
Which of these relations is a function?
marishachu [46]

Answer: C

Step-by-step explanation:

3 0
3 years ago
The Sea Dragon, a pendulum ride at an amusement park, moves from its central position at rest according to the trigonometric fun
liubo4ka [24]

Answer:T = 2*Pi / (Pi / 3) = 6 seconds

Step-by-step explanation:

5 0
3 years ago
The school principal wants to know whether the students in the entire school prefer football or basketball. The principal draws
stepan [7]

Answer:

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Step-by-step explanation:

because 3 includes everyone so it's not biased

5 0
3 years ago
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