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Pie
3 years ago
7

Evaluate. 6[5(3-9)-1]+2/7(8-2)+4

Mathematics
2 answers:
Leya [2.2K]3 years ago
7 0
Just remember to do PEMDAS (Please excuse my dear aunt sally)
Which means the order you solve the equation is by first doing Parenthesis, then Exponents, Multiplication,Division,Addition, then subtraction.

But the answer is - 1262/7 (btw a negative 126/7)
GREYUIT [131]3 years ago
6 0
If you would like to evaluate 6 * [5 * (3 - 9) - 1] + 2 / 7 * (8 - 2) + 4, you can calculate this using the following steps:

6 * [5 * (3 - 9) - 1] + 2 / 7 * (8 - 2) + 4 = 6 * [5 * (-6) - 1] + 2/7 * 6 +  4 = 6 * [- 30 - 1] + 12/7 + 4 = 6 * [- 31] + 12/7 + 4 = - 186 + 12/7 + 4 = - 182 + 12/7 = - 1274/7 + 12/7 = - 1262/7

The correct result would be - 1262/7.
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Which statement represents the expression 11 (30 + 7)?
allochka39001 [22]

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Jordan mixed together 9 gal. of Brand A fruit drink and 8 gal. of Brand B fruit drink which contains 48% fruit juice. Find the j
Pie

Answer:

Step-by-step explanation:

You do this by figuring out the amounts of pure fruit juice in all.

Explanation:

Mixture:

17 gal 30% contains:  

17

⋅

30

100

=

5.10

gal pure juice

From Brand B:

8 gal 48% contains:  

8

⋅

48

100

=

3.84

gal pure juice

So  

5.10

−

3.84

=

1.26

gal came from 9 gal of brand A

So the percentage of A is:

1.26

9

⋅

100

=

14

%

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Answer:

Second option. "Sue wants to cover the lid of a box with paper. How much paper should she buy?"

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