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stira [4]
3 years ago
13

One number is 5 times another number.their sum is 90.find the numbers.​

Mathematics
1 answer:
alexgriva [62]3 years ago
4 0

Step-by-step explanation:

let both unknowns be x and y

x = 5y. ......(1)

x + y = 90. ......(2)

sub eqn (1) into eqn (2)

5y + y = 90

6y = 90

y = 90/6

= 15

sub y = 15 to eqn (1)

x = 5y

x = 5 × 15

× = 75

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tia_tia [17]

From the calculation below, the number of days it will take region d to catch up with region c is 8 days.

<h3>How do we calculate the number of days from the word problem?</h3>

The number of days it will take region d to catch up with region c can be calculated using the following formula:

c = d + 50y ................... (1)

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Substituting the relevant values into equation (1) and solving for y, we have:

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Learn about the word problem here: brainly.com/question/3997080.

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7 0
2 years ago
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6 0
3 years ago
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Answer:

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nikklg [1K]

Answer:

Hope it helps.

Step-by-step explanation:

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