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gayaneshka [121]
2 years ago
8

Doing a Pre-Algebra Unit Test on Khan Academy

Mathematics
2 answers:
larisa [96]2 years ago
8 0

Answer:

-8,8

Step-by-step explanation:

since y=8 that add 8 to both sides to get rid of the -y.  you would then get -4x=32.  divide 32 by -4 and you would get -8 so the missing value would be -8

natta225 [31]2 years ago
5 0

Answer:

x=-8

Step-by-step explanation:

First, lets change the standerd form to slop intercept

-y=24+4x

y=-24-4x

Now, let's subsite for y, and solve for x

8=-24-4x

32=-4x

-8=x

CHECK:

32-8=24

24=24

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At Mary's bakery chocolate chip cookies make up 45% of the total cookies Oatmeal Raisin cookies 25% of the total cookies there a
wolverine [178]

Answer:

1100 cookies

Step-by-step explanation:

There are 3 types of cookies, the first represents 45% of the total, the second 25% and the last type there are 330. We can pose the following equation:

0.45 * x + 0.25 * x + 330 = x

solving for x:

x - 0.45 * x - 0.25 * x = 330

0.30 * x = 330

x = 330 / 0.3

x = 1100

which means that there are a total of 1100 cookies

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3 years ago
Help I'm confused with this question​
alukav5142 [94]
The pattern is going up by elevens each time. So basically you take the second number(A2) and subtract it from the first number(A1).
so short answer is: 46, 57, 68
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2 years ago
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First write the equation
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Multiply both sides by n
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