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ki77a [65]
3 years ago
9

Lena purchased a prepaid phone card for $20. Long distance calls cost 21 cents a minute using this card, Lena used her card only

once to make a long distance
call. If the remaining credit on her card is $12.23, how many minutes did her call last?
Mathematics
1 answer:
slega [8]3 years ago
5 0

<u>Answer:</u>

37 minutes

<u>Step-by-step explanation:</u>

Lena has 20 dollars. 20 - 12.23 = 7.77

Lena has $7.77 dollars left.

We divide this by .21 to see how many minutes her call was.

7.77 ÷ .21 = 37

Rate as Brainliest and Thanks plz

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Solve the given equation.<br><br><br><br> 8x = 168<br><br> what is x
V125BC [204]

Answer:

The Answer is gonna be 21

EXPLANATION :

8x = 168

x=168/8

x=21

This is the right Answer :3

I hope you are having a great day ❤️

5 0
2 years ago
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What is the answer to <br>3(4x+6)+7x
Schach [20]
3(4x + 6) + 7x
12x + 18 + 7x
19x + 18 <==
4 0
3 years ago
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Please answer this question right now ​
Westkost [7]

Answer:

6) c

7) d

Step-by-step explanation:

6) 25 + 15= 40

40+35=75

Php. 75

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150-87=63

Php. 63

Hope this helps!

6 0
3 years ago
Please help figure out I will give brainliest!
noname [10]

Answer:

40 student 110 adult

this is using desmos

but to smash the equation you can go like basically we have to cancel out each variable to solve for the other

3x + 8y = 1000

x + y < =150

-3(x + y <= 150)

-3x -3y = -450

3x + 8y = 1000

5y = 550

y= 110

3x + 8 y = 1000

-8(x+y<=150) = -8x - 8y <= -1200

-5x = -200

\frac{ - 5x}{ - 5 }   = x

\frac{ - 200}{ - 5}  = 40

x= 40

40 kids 110 adults

7 0
2 years ago
How do I solve this?
blagie [28]

Answer:

We'll solve that in parts.

The upper part is a right triangle that is 4 by (2 + 2 +6)

Area = (4 * 10) /2 = 20

The bottom of that figure is made of 3 parts.

A) a 2 by 2 right triangle. area equals  (2*2)/2 = 2

B) a 2 by 2 square whose area equals 2*2 = 4

C) a 6 by 2 right triangle whose area equals (6*2) / 2 = 6

Total Area = 20 + 2 + 4 + 6 = 32

Step-by-step explanation:

8 0
3 years ago
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