X + 7у = 23 3х + 14у = 48

1 answer:

8 0

Answer:

x + 7у = 23 3х + 14у = 48

Step-by-step explanation:

x + 7у = 23 3х + 14у = 48

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Ad libitum [116K]

Allison ran 3/8 km (0.375 km) in 3 minutes.

Set up a proportion to find how long it takes for her to run 1 km

$\frac{0.375\textrm{km}}{3 \textrm{min}} = \frac{1\textrm{km}}{x \textrm{min}}$

Cross multiply to get:

$3 = 0.375x$

Solve:

$x = \frac{3}{0.375}$

x = 8 minutes

5 0

3 years ago

marishachu [46]

He might be 6 now.

hope this helped :)

plzz tell me if I was wrong

8 0

3 years ago

zimovet [89]

17/30 or .56 is your correct answer

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2 years ago

Phantasy [73]

81x - 126x ÷ 3x + 1
45x / 3x + 1
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3 years ago

OlgaM077 [116]

C is the correct answer

explanation: the opposite is the always the positive or negative of the number

7 0

3 years ago

X + 7у = 23 3х + 14у = 48​