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snow_lady [41]
3 years ago
7

(2x – 5y) and (x + y)?

Mathematics
1 answer:
Firdavs [7]3 years ago
4 0
3x-6y. you need to take away the parentheses and combine like terms

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Rounded to the nearest tenth, approximately how many ounces is 82.4 kilograms?
Naddik [55]

Answer: it's D

there are 0.0283 kilograms in an ounce

4 0
3 years ago
-1/3x-4/3y=-2 1/3x-2/3y=4 using elimination
Minchanka [31]

-1/3x-4/3y=2

1/3x-2/3y=4

First realize that the coefficient of x is -1/3 and 1/3 which can be eliminated with addition

Adding the two equations together gets

-6/3y=6

Simplify

-2y=6

y=-3

Substitute back into original equation

1/3x-2/3(-3)=4

1/3x+2=4

1/3x=2

x=6

Answer

x=6, y=-3

Check answer

-1/3(6)-4/3(-3) =?= 2

                -2+4=2

                     2=2

Done!

5 0
2 years ago
Tim buys a torch and a battery. The torch costs 11 times as much as the battery. Tim pays with a £10 note and gets £4.84 change.
algol [13]
The cost of the battery is £0.43
6 0
3 years ago
What is the mean of Variable A? Express answer to one decimal place. Scatter plot on a first quadrant coordinate grid. The horiz
ivanzaharov [21]
Variable A is x. Variable B is y. (x,y)

2 , 2, 4, 5, 6, 7, 8, 9

Mean is computed by adding all the numbers in the data set and dividing it by its count.

2 + 2 + 4 + 5 + 6 + 7 + 8 + 9 = 43

43 / 8 = 5.375 rounded to 5.4
4 0
3 years ago
What does 7+7 divided by 7+7*7-7
PSYCHO15rus [73]
Im pretty sure that it is 50
3 0
3 years ago
Read 2 more answers
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