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olchik [2.2K]
3 years ago
14

The linear regression equation for a data set is y = -1.2x + 23.5, where y represents the number of balloons sold and x represen

ts the week number. Use the equation to predict the number of balloons the store will sell during week 8. Round to the nearest whole number.
A) 73



B) 14



C) 33



D) 96
Mathematics
2 answers:
Illusion [34]3 years ago
6 0
Should be B.
as x represents the week number you simply plug in 8 for X so,
y=-1.2(8)+23.5
y=13.9 that is just 14 then
nevsk [136]3 years ago
3 0
The answer your question is B                                                                  
     Hope this helps
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On a highway, you take 3 seconds to increase your speed from 32 to 35 miles per hour. Your speed increases the same amount each
balandron [24]

Answer:

1 to 30 seconds

Step-by-step explanation:

3 seconds increases your speed from 32 to 35 miles per hour

Hence 3 seconds = 3 miles per hour(35-32 miles)

1 second = 1 mile

The function for the increase per mile is therefore:

f(x)= 1x

Where x is number of seconds travelled on the highway

The domain of a function are the possible input values for x. Since the speed limit on the highway is 65 miles, the input values for x cannot be more than 30 seconds(current speed is 35 miles per hour, 65-35=30)

3 0
3 years ago
The ratio of buckets of yellow paint to buckets of red paint in the store is 3 to 4. There are 60 buckets of yellow paint. How m
morpeh [17]

Answer:

80 buckets of red paint

Step-by-step explanation:

Given

The ratio of buckets of yellow paint to buckets of red paint in the store to be 3:4

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Amount of yellow paint = 60

Required

Amount of red paint.

First get the total amount of paint used.

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x = 420/3

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Amount of red paint = Total - Amount of yellow paint

Amount of red paint = 140 - 60

Amount of red paint = 80

Hence there are 80 buckets of red paint in the store

4 0
3 years ago
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5 0
3 years ago
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Answer:

ight bet so if 2 and 2 is 4

4 0
3 years ago
Davens pays $50 each week for guitar lessons. How much will he pay after 3/4 of a year
Alja [10]
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3 years ago
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