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Nookie1986 [14]
2 years ago
9

Help with 1,2,3 please

Mathematics
1 answer:
serg [7]2 years ago
5 0

Answer:

Step-by-step explanation:xccm,zxnlkdsnlhfhnwsidldv,

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Phone Company A charges a monthly fee of $42.50, and $0.02 for each minute talk time. Phone company B charges a monthly fee of $
Y_Kistochka [10]
We need to call for x minute
+ Phone Company A charges a monthly fee of $42.50, and $0.02 for each minute talk time. So we have to spend: <span>$42.50+ $0.02x
+ </span>Phone company B charges a monthly fee of $25.00, and $0.09 for each minute of talk time. So we have to spend: <span>$25.00+ $0.09x

We solve for x: </span>$42.50+ $0.02x> <span>$25.00+ $0.09x
or </span>$42.50- $25.00 > $0.09x- <span>$0.02x
and we have $0.07x<$27.50
or x< 27.50:0.07 and x< 393.86

The answer is:
If we have to call much time, at least 394 minutes, we should choose A
If not, choose B</span>
8 0
3 years ago
One bar of candy A and two bars of candy B have 774 calories. Two bars of candy A and one bar of candy B contains 786 calories.
vampirchik [111]
◆ Define the variables:

Let the calorie content of Candy A = a
and the calorie content of Candy B = b

◆ Form the equations:

One bar of candy A and two bars of candy B have 774 calories. Thus:

a + 2b = 774

Two bars of candy A and one bar of candy B contains 786 calories

2a + b = 786

◆ Solve the equations:

From first equation,
a + 2b = 774
=> a = 774 - 2b

Put a in second equation
2×(774-2b) + b = 786
=> 2×774 - 2×2b + b = 786
=> 1548 - 4b + b = 786
=> -3b = 786 - 1548
=> -3b = -762
=> b = -762/(-3) = 254 calorie

◆ Find caloric content:

Caloric content of candy B = 254 calorie

Caloric content of candy A = a = 774 - 2b = 774 - 2×254 = 774 - 508 = 266 calorie
5 0
3 years ago
PLS HELP GIVEN BRAINIEST ANSWER !!!!
ASHA 777 [7]

Answer:

65.45

Step-by-step explanation:

multiply 77 by 0.15 then substract that answer from 77 to get how long the video was after the cut.

7 0
2 years ago
The cost of a movie ticket is increased by 15%. The old price was five dollars how much are they now?
Grace [21]

Answer:

5.75 is the answer.

$5.00 x 0.15=0.75

$5.00+0.75=$5.75

4 0
2 years ago
Giving brainliest to first correct answer:PPP
tia_tia [17]
The correct answer is 317
5 0
2 years ago
Read 2 more answers
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