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3 years ago

I need help with this one please..

Mathematics

1 answer:

KiRa [710]3 years ago

4 0

I think it's 60 I'm NOT sure. I just multiplied those three numbers

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2 5/8 as a rational number ??

arlik [135]

Answer:

It's already a rational number?

Step-by-step explanation:

A rational number is any number that can be written as a fraction/ratio, and $2\frac{5}{8}$ is certainly a fraction. If you meant $2\frac{5}{8}$ as a decimal, then it'd be 2.625.

6 0

2 years ago

When Justin goes to work, he drives at an average speed of 65 miles per hour. It takes about 1 hour and 30 minutes for Justin to

Fofino [41]

Answer:

Justin spends $14.24 on gas to travel to work.

Step-by-step explanation:

Given:

Average speed at which Justin goes to work = 65 miles/hour

Time taken by Justin to arrive at work = 1 hour and 30 minutes = 1.5 hours [As 30 minutes =0.5 hours]

Distance he can travel per gallon of gas = 25 miles.

Cost of per gallon of gas = $3.65

Solution:

We first determine the distance Justin travels to work.

Distance = $Speed\times time$

Distance = $65\times 1.5 = 97.5\ miles$

Using unitary method to find the amount of gas required to cover the distance.

If 25 miles is covered in 1 gallon of gas

Then 1 mile will be covered in = $\frac{1}{25}$ gallons of gas

So, to cover 97.5 miles gas required = $\frac{1}{25}\times 97.5=3.9$ gallons of gas.

Using unitary method to find the cost of 3.9 gallons of gas.

Cost of 1 gallon of gas = $3.65

So, cost of 3.9 gallons of gas will be = $\$3.65\times 3.9=\$14.235\approx\$14.24$ (Answer)

3 0

3 years ago

Please help me find x. I really don't get it.

inysia [295]

Answer:

x = 11

Step-by-step explanation:

The relationship between the sine and cosine functions can be written as ...

sin(x) = cos(90 -x)

sin(A) = cos(90 -A) = cos(B) . . . . substituting the given values

Equating arguments of the cosine function, we have ...

90 -(3x+4) = 8x -35

86 -3x = 8x -35

86 +35 = 8x +3x . . . . . add 3x+35 to both sides

121 = 11x . . . . . . . . . . . . collect terms

121/11 = x = 11 . . . . . . . . divide by 11

_____

Comment on the solution

There are other applicable relationships between sine and cosine as well. The result is that there are many solutions to this equation. One set is ...

11 +(32 8/11)k . . . for any integer k

Another set is ...

61.8 +72k . . . . . for any integer k

3 0

3 years ago

Please help.. what is the function rule for the perimeter P of a building with a rectangular base if the width w is two times th

Otrada [13]

For the answer to the question above, this is the formula for finding the rectangular base.
P = 2L + 2WConsider the Width being twice as long as the length. If we write it down, it will look like thisW= 2 LWe'll plug that into the perimeter equation,P = 2L + 2W→ P = 2L + 2(2L)Now, just simplify the equation and problem is solved.
I hope I helped you with my answer.

3 0

3 years ago

Read 2 more answers

The table represents the function f (x) = 3x - 1.

Xelga [282]

Yeysyidoemxieosk !kwksos

8 0

3 years ago

I need help with this one please..​

I need help with this one please..