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3 years ago

Can u help this helpless 9th grader ?

Mathematics

2 answers:

nexus9112 [7]3 years ago

7 0

Answer:

y = 4x + 32

Step-by-step explanation:

Given: Temperature at sunrise = 32°F

y is the temperature after x hours of sunrise

Temperature change is 4°F/hour.

The equation of a line in slope intercept form is given by

y = mx +c

where m is the slope, which is the change in value of y to the value of x

and c is the value of y at x = 0

At sunrise, x =0 and y =32

∴ c = 32

Also we see that the change in temperature to that of time is 4/1 = 4

∴ m = 4

Substituting the values of m and c in the equation of line, we have

y = 4x +32

kvv77 [185]3 years ago

3 0

Y=mx+b form

Answer: Y=32x+4
you dont even have to solve anything you just simply put it in slope intercept form which equals Y=mx+b

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2 years ago

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2 years ago

in a school gym, the ratio of the number of boys to the number of girls was 4:3 . after 160 boys left the gym, the ratio became

Annette [7]

Answer:

300 girls were there in the gym.

Step-by-step explanation:

Given:

The ratio of the number of boys to the number of girls was 4:3, after 160 boys left the gym, the ratio became 4:5.

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The girls in the gym does not left, their quantity is same before and after.

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3 years ago