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Lena [83]
3 years ago
11

Rachel used 2.8 cups of sugar to make 2 cherry pies. How much sugar, on average, did she put in each pie?

Mathematics
1 answer:
vampirchik [111]3 years ago
8 0

Answer:

1.2 cups

Step-by-step explanation:

Divide the total cups (2.4) by the amount of pies (2)

2.4/2 = 1.2 cups of sugar per pie

Hopefully this helps - let me know if you have any questions!

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(3)-2<br> Evaluate exponent
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Answer:

3^{-2} = \dfrac{1}{9}

Step-by-step explanation:

Definition of negative exponent:

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In our case, a = 3 and -n = -2.

3^{-2} = \dfrac{1}{3^2}

Now we just evaluate the power in the denominator.

3^{-2} = \dfrac{1}{3^2} = \dfrac{1}{9}

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6x^2-4xy-15xy+10y^2 factor by grouping
PtichkaEL [24]
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Best Answer
We will need to split the middle term and use the grouping method. To do this multiply the coefficient of the first term (6) against the coefficient of the last term (10):

6 * 10 = 60
Factors of 60 = +-(1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60)

From the list of factors find two numbers that when added together give -19 and when multiplied together give 60. -15 and -4 added together give -19 and multiplied together give 60 so split the middle term by rewriting these values back into the expression:

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Now use the grouping method, take out the highest common factor between the two sets of terms:

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Group the outside terms:

(3x - 2y)(2x - 5y)


Answers
6 = -3*-2
10 = 5*2
5*3+2*2=19
thus
(2y-3x)(5y-2x)
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