3 years ago

Which expression is equivalent to 83 ⋅ 8–7?

Mathematics

1 answer:

anastassius [24]3 years ago

3 0

I believe the answer to your question is 657

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A baker, in 70 minutes, iced 40 cupcakes and, in 49 minutes, iced 28 cupcakes. What is the constant of proportionality?

Zinaida [17]

Answer:

$\frac{4}{7}$

Step-by-step explanation:

The constant of proportionality is the slope of the line joining the two points

(70,40) and (49,28).

Recall the slope formula:

$m = \frac{ y_2 - y_1 }{ x_2 - x_1}$

We substitute the point to get:

$m = \frac{28 - 40}{49 - 70} = \frac{ - 12}{ - 21} = \frac{4}{7}$

<u>Alternatively</u>:

A proportional relation is given by

$y = kx$

where k is the constant of proportionality.

Using any point, we substitute and solve for k.

$40 = 70k$

$k = \frac{40}{70} = \frac{4}{7}$

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Divide 859 in half and you get 429 with remainder of 5.

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The table shows values for points on the graph of a linear function. x −2 1 2 4 y 13 1 −3 −11 What is the slope of the graph of

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Help me with this pls

Leviafan [203]

Rise over run.
The rise is 3
The run is 1
So the slope is 3/1

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Step-by-step explanation:

all you have to do is divide it by 2 cuz there's 60 minutes in an hour

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