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Mrac [35]
3 years ago
14

Two snow seasons ago, White cap received 320 inches of snow. That season it received 10% of the total season's snowfall in Novem

ber. Officals at Whitecap like to have at least 40 inches of snowfall by the end of November. Did whitecap receive enough snowfall to meet that goal? Explain how you determined your answer.
Please help November - 17 | 14%
Mathematics
1 answer:
Shtirlitz [24]3 years ago
4 0
No,because 10% of 320 is 32 and it likely to have atleast 40 inches
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Answer:

A linear relationship can be written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

If this line passes through the points (a, b) and (c, d) then the slope can be written as:

a = (a - c)/(b - d)

Here y will represent the distance between Jacob and his house, and the variable x represents the time that he has ben driving.

In this case, we know that after driving for 5 hours, he is 112km from home.

Then we can write this point as (5h, 112km)

We also know that after 7 hours he is 15km from home.

Then we can write this point as (7h, 15km)

Then the slope of this function will be:

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Then the equation is:

y = -(48.5 km/h)*x + b

To find the value of b, we can replace the values of one of the points, for example in the point (7h, 15km)

This means that we need to replace x by 12h, and y by 15km, then we get:

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15km + ( 48.5 km/h)*7h = b = 354.5 km

then the equation will be:

y = (-48.5 km/h)*x + 354.5 km

Now we want to answer: How long had Jacob been driving when he was 209 km from  home?

Then we need to only replace y by 209km, and solve for x:

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What is the value of p if the line that passes through (2,-4) and (p,8) has a slope of 1/2? ​
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