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dsp73
3 years ago
10

You get $84 each month from your mom for your cell phone bill. The base fee each month is $27 plus $0.15 per minute. What is the

maximum number of minutes you can use your cell phone each month?
Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
4 0
So, to figure out this problem you first need to solve for how much you have left after paying the base fee. Take the total ($84) and subtract by the base fee ($27). You will get 57 as your answer. Then, take $57 and divide it by $0.15 to get your answer. It is 380 minutes each month. The equation here is 84=27+0.15x.
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3 0
3 years ago
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Every floor of a 20 storey building is 5m in high. If a lift moves 2m every second, how long will it take to move from 3rd floor
kramer

Answer:

30 seconds

Step-by-step explanation:

→ Work out how many floors it's going to travel

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3 years ago
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timama [110]

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Step-by-step explanation:

To find the inverse of a function, you want to replace x with y and y with x. Then, you solve for y.

y=-\frac{3}{2}x+\frac{7}{2}                       [replace y with x and x with y]

x=-\frac{3}{2}y+\frac{7}{2}                       [subtract both sides by 7/2]

x-\frac{7}{2} =-\frac{3}{2}y                       [multiply both sides by -2/3]

-\frac{2}{3} (x-\frac{7}{2} )=y                     [distribute]

y=-\frac{2}{3}x+\frac{7}{3}

Now, we have our inverse function.

f^-^1(x)=-\frac{2}{3}x+\frac{7}{3}

7 0
3 years ago
I need to know how to find the value of x
anzhelika [568]
x = 15°

The angle of a straight line is 180°.

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jolli1 [7]
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8 0
2 years ago
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