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Pepsi [2]
3 years ago
7

Help plz :)..............​

Mathematics
2 answers:
Art [367]3 years ago
8 0
Hello! What type of work is that so I can specifically know! :)
skelet666 [1.2K]3 years ago
6 0

Answer:

The value of x and y is -2 and 3

step by step explaination:

7x + 3y = -5 be equation 1st and x + y =5 be equation 2nd and multiply equation 2nd by 3 then subtract it .

then we get,

7x + 3y = -5

3x + 3 y= 3

(-). (-). (-)

_________

4x. = -8

x =. - 8/4

x = -2

substitute the value of x in equation in 1

7x +3y = -5

7* (-2) + 3y = -5

-14 + 3y = -5

3y = 14-5

y =9/3

y=3

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A pack of brownies cost $6.60 If the price per brownie stays the same, what would be
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Answer:

19.8

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7 0
3 years ago
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When the outliers are removed, how does the mean change? (2 points) dot plot with 1 on 50, 1 on 76, 1 on 78, 2 on 79, 1 on 80, 1
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Answer:

Answer: The mean increases by 3

Step-by-step explanation:

The original data set is 

{50, 76, 78, 79, 79, 80, 81, 82, 82, 83}

The outlier is 50 because it is not near the group of values from 76 to 83 which is where the main cluster is.

The original mean is M = (50+76+78+79+79+80+81+82+82+83)/10 = 77

If we take out the outlier 50, the new mean is N = (76+78+79+79+80+81+82+82+83)/9 = 80

So in summary so far

old mean = M = 77

new mean = N = 80

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8 0
3 years ago
2+7/9x=5/6 Rewrite without fractions or decimals
quester [9]

Answer:

2 + (7 ÷ 9)x = 5 ÷ 6

Step-by-step explanation:

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2+\frac{7}{9}x=\frac{5}{6}

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2 + (7 ÷ 9)x = 5 ÷ 6

5 0
2 years ago
Jafar will get $12400 more if his salary is increased by 31%. Jafar's salary is 20% less of his colleague Ali's salary. What is
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Answer:

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Step-by-step explanation:

Let Jafar's salary be x.

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x = $40000

Let Ali's salary be y.

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y-(y/5) = 40000

(5y-y)/5 = 40000

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y = $50000

7 0
3 years ago
WRITE THE NUMBER 1.075 in two other forms
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5 0
3 years ago
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