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MariettaO [177]
4 years ago
13

Help

Mathematics
1 answer:
gregori [183]4 years ago
7 0
The answers are B,C, and F because you have to set up proportions. 
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Which of the following expressions is equal to −17?
Brums [2.3K]

Answer:

C) −12−5

Step-by-step explanation:

−12 − 5 = −(12 + 5) = −(17) = −17

6 0
3 years ago
Read 2 more answers
Help me plz idk how
Alika [10]
Hello there,

For problem one 
The mile is an appropriate unit to measure the distance run over a one-week period.

For problem two
The pound is an appropriate unit to measure the weight of a bag of sugar.


For problem three
The yard is an appropriate unit to measure the distance run on a football field.

Hope this helps!

8 0
3 years ago
The radius of a car wheel is 14 inches. how many revolutions per minute is the wheel making when the car is traveling at 60 mph.
Dovator [93]

Answer:

721\ \frac{rev}{min}

Step-by-step explanation:

step 1

Find the circumference of the wheel

The circumference of a circle is equal to

C=2\pi r

we have

r=14\ in

substitute

C=2\pi(14)

C=28\pi\ in

assume

\pi=3.14

C=28(3.14)=87.92\ in

step 2

1\ mile=63,360\ inches

1\ hour=60\ minutes

we have that

The speed of the car is 60 miles/hour

Convert the speed to inches/minute

60\ \frac{mi}{h}=60(\frac{63,360}{60})=63,360\ \frac{in}{min}

step 3

Remember that

The circumference of the wheel subtends one revolution

so

1\ rev=87.92\ in

Convert the speed to rev/min

63,360\ \frac{in}{min}=\frac{63,360}{87.92}=721\ \frac{rev}{min}

3 0
3 years ago
A water tank is 1/8 full. the tank is 3/4 full when 42 gallons of water are added to the tank. how much water can the tank hold
Rashid [163]

Let, the water capcity of tank = x

it would be x*3/4 = 42

x = 42*4 / 3 = 168/3 = 56

So, the tank can hold up to 56 gallons

3 0
4 years ago
Read 2 more answers
The slopes of perpendicular lines _____.
HACTEHA [7]
Hey there

The slopes of perpendicular lines are negative reciprocals. <span>Perpendicular lines have slopes that are </span>negative reciprocals<span> of each other.</span><span>

= (C) </span>
7 0
4 years ago
Read 2 more answers
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