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Svetlanka [38]
3 years ago
15

The graph shows the increase of the temperature over time in an oven what is the change in the y value and x value on the graph

Mathematics
2 answers:
Hatshy [7]3 years ago
6 0

Let

x-------> the time in minutes

y-------> the temperature in Fahrenheit  degrees

A(2,150)\\B(3,190)

we know that

<u>the change in the y-values between two points is equal to</u>

(y2-y1)

Substitute the y-values of the point A and B in the formula

y2=190\\y1=150

(190-150)=40

<u>the change in the x-values between two points is equal to</u>

(x2-x1)

Substitute the x-values of the point A and B in the formula

x2=3\\x1=2

(3-2)=1

therefore

<u>the answer is</u>

The change in the y-value is 40 and the change in the x-value is 1

hjlf3 years ago
3 0
It is the first answer
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Y= 1/2x-4 and y= -2x-9 what is the solution of equations
azamat

Answer:

(x,y)=(-2,-5)

Step-by-step explanation:

y=1/2x-4

y=-2x-9

(y=) 1/2x-4=-2x-9

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3 years ago
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The ratio of the number of dolls Jacky had to the number of dolls Peter had was 5:2 but, after Jacky gave 15 dolls to Peter, the
sleet_krkn [62]

Answer:

70 dolls

Step-by-step explanation:

Hello!

The ratio is 5:2, which are division of  a whole. They can be represented as 5x and 2x.

Jacky has 5x dolls, and Peter has 2x dolls. They were equal after subtracting 15 dolls from 5x and adding them to 2x.

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So Jacky has 5(10) dolls, or 50 dolls, and Peter has 2(10) or 20 dolls.

The total sum is 70 dolls.

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