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Ksju [112]
3 years ago
13

The sum of four consecutive multiples of 7 is 378. Find the numbers

Mathematics
2 answers:
Mariana [72]3 years ago
5 0

Answer:i have no idea but go back to your math book and lesson and check :p

Step-by-step explanation:

yan [13]3 years ago
3 0

Answer:

84, 91, 98, 105

Step-by-step explanation:

7x + 7 (x+1) + 7(x+2) + 7(x+3) = 378

28x + 42 = 378

28x = 336

x = 12

7x12, 7x13, 7x14, 7x15   i.e. 84, 91, 98, 105

check: 84 + 91 + 98 + 105 = 378

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Step-by-step explanation:

93 + (68 + 7)=  168

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3 years ago
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gayaneshka [121]
Okay so we have to first find the total.
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3 years ago
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4 0
2 years ago
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One week a computer store sold a total of 36 computers and external hard drives. the revenue from these sales was ​$30875 . if c
melamori03 [73]

To solve this problem you must apply the proccedure shown below:

1. You must make a system of equation by using the information given in the problem above. Then, let's call:

x: The number of computers sold.

y: The number of hard drives sold.

2. Therefore, you have the following system of equations:

\left \{ {{x+y=36} \atop {1180x+125y=30875}} \right.

2. Solve for x in the first equation and substitute it into the second equation:

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Therefore, the answer is: The store sold 25 computers and 11 hard drives.

5 0
3 years ago
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