Find the value of each expression.

Mathematics

1 answer:

Damm [24]2 years ago

5 0

I'm not sure

Step-by-step explanation:

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Can you answer these 3 questions for me plz

finlep [7]

A.
$1hr \: 15min = 75min$

$c = 0.22t = 0.22 \times 75 = 16.5$

cost is $16.50

B.

$26.40 = 0.22 \times t$

rearrange to solve for t:

$t = \frac{26.40}{0.22} = 120min$

C. This is the same as part B, only the rate changed

$t = \frac{26.40}{0.25} = 105.6min$

they ask for the greatest number of minutes, so we round down (take the floor of the value).

the answer is 105 minutes.

4 0

2 years ago

Read 2 more answers

Yo solve....14√x+15 = 71

user100 [1]

Answer:

plug in 16 for x

14√x+15 = 71

14√x+15-15 = 71-15 = 56

14√x/14 = 56/14 = 4

√x^2 = 4^2 = 16

7 0

3 years ago

I don't get it and it's too confusing

Gwar [14]

10x-3(x-6)=-(x-1)
first distribute
10x -3x +18 = -x + 1
then you simplify
7 x +18 = -x +1
then you leave of when one side of x
6 x +18= +1
use opposite operation on the side with the x and do the same equation to the other side
6 x = -17
then divide
x = - 2.8333....

3 0

2 years ago

A circle has a diameter of 5 inches. A square has a side length of 5 inches. What is true about the areas of the two figures?

Neporo4naja [7]

-- They are unequal

-- The area of the circle is (pi) (radius²) = 19.63 inches² .

-- The area of the square is (side length)² = 25 inches² .

-- The area of the square is 27.3% greater than the area of the circle.

7 0

3 years ago

Read 2 more answers

Evaluate the function fx = 4 * 7^t for x= -1 and x=2

Alex73 [517]

Well what i think you're asking here...I apologie if I'm wrong but what I did was

f(-1) = 4 * 7^t = 4/7

and

f(2) = 4 * 7^t = 196.

Is this what you wanted if not I can...try another way.

6 0

3 years ago