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2 years ago

if u can answer all them correctly ill make a post for u and u can have all my coins just pls answer them all im begging

Mathematics

1 answer:

Shkiper50 [21]2 years ago

7 0

Answer: this is a continuation starting in number 4 (use the same steps as example 3)

Step-by-step explanation:

-12

-2

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Emma uses a 250 meter roll of crepe paper to make streamers. How many dekameters of creme paper does emma use?

QveST [7]

1 meter = 0.1 decameters

0.1 * 250 = 25

So she used 25 decameters of creme paper.

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2 years ago

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Nikki made 3 cups of pear puree she filled some 2 ounce containers for freezing how many full containers of pear puree did Nikki

Over [174]

12 because there is 8 ounces in a cup so 3*824 divided by 2 is 12

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M is between points C and Q. CM=17 and CQ=21. What is MQ?

timurjin [86]

The answer is 21 - 17, which = 4.
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2 years ago

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-8 equals x + 11 / -2

slava [35]

If the equation is $-8=x+\frac{11}{-2}$ :

$-8=x+\frac{11}{-2}\\-8=x-\frac{11}{2}\\-8+\frac{11}{2}=x-\frac{11}{2}+\frac{11}{2}\\-\frac{16}{2}+\frac{11}{2}=x\\x=-\frac{5}{2}=-2\frac{1}{2}$

If the equation is $-8=\frac{x+11}{-2}$ :

$-8=\frac{x+11}{-2}\\-8(-2)=\frac{x+11}{-2}(-2)\\16=\frac{-2(x+11)}{-2}\\16=x+11\\16-11=x+11-11\\x=5$

Hopefully the math was self-explanatory. If it is not, please feel free to ask for a step-by-step, in depth explanation, and I will edit my answer to accommodate.

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2 years ago

Solve the system of equations using the method of your choice

Vsevolod [243]

Answer:

(-3, -1); x = -3; y = -1

Step-by-step explanation:

-3x + 5y = 4; x + y = -4

solving via substitution

rearrange second equation: y = -x - 4

-3x + 5(-x - 4) = 4

-3x - 5x - 20 = 4

-8x -20 = 4

-8x = 24

x = -3

- 3 + y = -4

y = -1

(-3, -1)

Check

- 3 + -1 = -4

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2 years ago