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S_A_V [24]
4 years ago
10

Emily traveled uphill to the hardware store for 60 minutes at just 6mph she then traveled back home the same path downhill at a

speed of 12 mph what is her average speed for the entire trip
Mathematics
1 answer:
Goryan [66]4 years ago
3 0
The trip home at twice the speed took half as long. She traveled the whole 12 miles in 1.5 hours, so had an average speed of ...
   (12 mi)/(1.5 h) = 8 mi/h
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A driver descended to a depth of -65 feet in 5 minutes. If she descended at the same rate each minute, what’s the rate?
Sidana [21]
This is an easy one. 

65/5= 13.

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7 0
3 years ago
Help please asap i<br> show step by step !
pychu [463]

Answer:

a = 4\sqrt{3}

b= 4

Step-by-step explanation:

It's a 30-60-90 triangle based on the given picture. A right triangle too

Use sine, cosine, and tangent to solve for the side.

To find b, you can use sin(30) = b/8 because sin(angle) = opposite/hypotenuse.

OR you can use the rule for 30-60-90 triangle, which is x for short leg, 2x for hypotenuse, and x\sqrt{3} for long leg

So either way, b = 4

To find a, you can use cos(30) = a/8 because cos(angle) = adjacent/hypotenuse.

OR you can use the same rule, 30-60-90 triangle to save time

a will end up = 4\sqrt{3}

6 0
3 years ago
Convert 6 gallons into fluid ounces
earnstyle [38]

Answer:

768 fluid ounces  

8 0
2 years ago
Mandy is saving money to buy a new car. For the past 4 weeks, she has added $273 each week to her account. She also added $230 t
aleksley [76]

Answer:

$1654

Step-by-step explanation:

332+230= 562

273*4+562

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1654

4 0
3 years ago
N is the midpoint of . Find the length of the line segment PQ if NQ = 18. answers:
Vitek1552 [10]
36 because NQ is 18 and the tic mark means that each half is equal to each other, and 18+18=36 :D
5 0
3 years ago
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