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alexandr1967 [171]
2 years ago
5

Joan is 5 years older than Ellen, and 3 years ago their sum of their ages is 17, in how many years will Joan be 21?

Mathematics
1 answer:
mariarad [96]2 years ago
5 0

Answer:

7

Step-by-step explanation:

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Graph a line that contains the point (-7,-4)and has a slope of - 2/3
sergeinik [125]

Hi there! :)

Answer:

Given the information, we can write an equation in slope-intercept form

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Plug in the slope for 'm', the y-coordinate of the point given for 'y', and the

x-coordinate given for 'x':

-4 = -2/3(-7) + b

-4 = 14/3 + b

Solve for b:

-12/3 = 14/3 + b

-12/3 - 14/3 = b

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Therefore, the equation of the line is y = -2/3x - 26/3 (Graphed below)

Some points on the line include:

(-7, -4)

(-4, -6)

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3 years ago
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Pavlova-9 [17]

Answer:

4(³+4)

Step-by-step explanation:

3 0
3 years ago
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What is the slope of (1,4) and (4,5)
Irina-Kira [14]

Answer:

slope = 1/3 or 0.3333333333333333333333 (goes on for infinity)

8 0
3 years ago
A bag of cat food contains 4 pounds. Each serving is 1/4 of a cup. How many servings are in the bag?
Alina [70]

Answer:

16

Step-by-step explanation:

each pound has 3.6 cups

1/4 of a pound can be multiplied

3.6 x 1/4 =  0.9

then we subtract 4 - 3.6 = 0.4 say if the question was for one pound

But we have to find  14.4 cups instead as;

3.6 x 4 = 14.4 = 4 pounds

We go back to 0.9 are first smaller serving = 1/4 cup

14.4/0.9 = 16

8 0
2 years ago
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AleksAgata [21]

Step-by-step explanation:

A is 20+90+A=180. A=70 (corner)

So the sine of 20 is 0,3420

So we have

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6 0
3 years ago
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