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yaroslaw [1]
3 years ago
6

HELLPPP I need help asappp

Mathematics
1 answer:
sattari [20]3 years ago
3 0

Answer:

(8,5)

Step-by-step explanation:

x=8

5*8-2y=30

40-2y=30 .      subtract 40 from both sides

-2y=-10 .           divide both sides by-2

y=5

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Twice a number x added to 10 <br><br> 2x + 10<br><br> x + 10<br><br> 10x + 2<br><br> 2x/2 + 10
lina2011 [118]

Answer:

2x+10

Step-by-step explanation:

whatever your number is (x) you would multiply by 2 then add that to 10

3 0
3 years ago
determine if f(x)=4x+1/x*5 and g(x)=5x-1/x+4 are inverses of each other. if they are not inverses, explain why.
kherson [118]

f(x) = \frac{4x+1}{5x}                     g(x) = \frac{5x-1}{x+4}

g⁻¹(x): x = \frac{5y-1}{y+4}

       x(y + 4) = 5y - 1           <em>multiplied both sides by y + 4</em>

       xy + 4x = 5y - 1           <em>distributed x into y + 4 on left side</em>

  xy + 4x + 1 = 5y                <em>added 1 to both sides</em>

          4x + 1 = 5y - xy          <em>subtracted xy from both sides</em>

           4x + 1 = y(5 - x)         <em>factored y on the right side</em>

           \frac{4x+1}{5 - x} = y         <em>divided 5 - x from both sides</em>

f(x) ≠ g⁻¹(x)  so they are not inverses of each other

Answer: NOT INVERSES because f(x) ≠ g⁻¹(x)


4 0
3 years ago
George charged a motorized bicycle on his credit card for $2,000 on June 12. His balance before that purchase on that credit car
Gnesinka [82]
The calculation uses the accumulated daily balance method (ADB).
We assume the statement is based on calendar month (rare!).

George owes $500 from beginning to end of June, so 30 days out of 30.
Interest accrued is 500*0.013*30/30=$6.50.
He also owes $2000 from June 12 to June 30, so 19 days inclusively.
Interest accrued is $2000*.013*(19/30)=16.47
Total interest at the end of the month=$6.50+$16.47=$22.97
3 0
4 years ago
Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. If there is a positive or n
melisa1 [442]

Answer:

a

Step-by-step explanation:

8 0
3 years ago
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Frank is going to plant b vegetable seeds in one garden and 4b + 4 vegetable seeds in another. How many seeds is Frank going to​
GenaCL600 [577]

Answer: 4 seeds

Step-by-step explanation: you’re only planting 4 new seeds the other plants are planted

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