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MariettaO [177]
3 years ago
9

Please help, will mark brainliest50 points

Mathematics
2 answers:
pentagon [3]3 years ago
4 0

Answer:

(-6,8)

Step-by-step explanation:

2x + 9y = 60

-9x + y = 62

y = 62 + 9x

2x + 9(62 + 9x) = 60

2x + 558 + 81x = 60

83x = -498

x = -6

y = 62 + 9(-6) = 8

liraira [26]3 years ago
3 0

Answer:

(-6,8)

Step-by-step explanation:

2x + 9y = 60

-9x + y = 62 --> y = 9x + 62 --> 2x + 9(9x + 62) = 60 -->

2x+ 81x + 558 = 60 -->

83x + 558 = 60 -->

83x = -498 -->

x = -6 -->

y = 9(-6) + 62 -->

y = 8

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I need help please thanks​
svet-max [94.6K]

Answer: You simply need to match each fraction to where they belong

Step-by-step explanation:

3 0
3 years ago
60 pts!!! HELP Find the inverse of the function f(x)= 4/9 x-4<br> show work
earnstyle [38]

Answer:

Inverse Function: f^-1(x) = 9/4x + 9

Step-by-step explanation:

To find  the inverse function we can interchange the position of the variables x and y, and then solve for y;

y = 4/9x - 4 => x = 4/9y - 4,

x = 4/9y - 4,

4/9y = x + 4,

y = 9/4x + 9/4(4),

y = 9/4x + 9/ f^-1(x) = 9/4x + 9

6 0
3 years ago
Eleanor and Max used two rectangular pieces of plywood, placed end-to-end, to make a long rectangular stage for the school play.
Flauer [41]

Answer:the width of plywood = 6.25 feet wide or  6 1/4 feet wide

Step-by-step explanation:

Step 1

Area of  a rectangular plywood = length x width

Area of Ist Plywood= 7 x w

Area of 2nd  Plywood= 61/2 x w=6.5 xw

But Total Arae of trhe two Plywoods are = 84 3/8 square feet.

Therefore Our equation to solve the problem becomes

Area of Ist Plywood + Area of 2nd  Plywood =84 3/8 square feet.

7w + 6.5w =  84 3/8

13.5w= 84 3/8

w =  84 3/8/13.5

675/8  / 13.5

w=6.25

Therefore the width of plywood = 6.25 feet wide or 6 1/4 feet.

3 0
3 years ago
What is the answer to 1n-10=5/6-7-1/3n
navik [9.2K]
1*n-10 = (5/6)*n-((1/3)*n)-7 // - (5/6)*n-((1/3)*n)-7

1*n-((5/6)*n)+(1/3)*n-10+7 = 0

n+(-5/6)*n+(1/3)*n-10+7 = 0

1/2*n-3 = 0 // + 3

1/2*n = 3 // : 1/2

n = 3/1/2

n = 6

That's just in case you had to show your work lol^^
3 0
3 years ago
Read 2 more answers
Figure out the costs of buying the two cars listed below by filling in the blanks in the table
a_sh-v [17]

Make/Model: 
Ford E-Series Wagon Van

<span>MSRP: </span>
$28,760

<span>Cost of options: </span>
$5,560

<span>Sales tax: </span>
$2230.80 (this is based on 6.5% interest)

<span>Total cost: </span>
$36550.80

<span>10% down payment: </span>
$3655.08

<span>Amount needed to borrow: </span>
$32895.72

<span>Monthly payment: </span>
$665.62

<span>Total interest paid: </span>
$4,665.51

Total payments:
<span>60 payments of total $39,937.03</span>

6 0
3 years ago
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