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Serga [27]
3 years ago
6

Brainliest goes to whoever answers correctly

Mathematics
1 answer:
velikii [3]3 years ago
7 0
The answer is b

If you plug those values on a graph it will show a straight line.
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How many solutions does this linear system have?
gayaneshka [121]

Answer:

One solution: (2.5,0)

Step-by-step explanation:

We can use substitution for the solution. Substitute y=2x-5 to -8x-4y=-20 so that you end up with -8x-8x+20=-20. Next you want to add like terms which will be -16x+20=-20, next you want isolate x by subtracting 20 from both sides and leaves you with -16x=-40. Divide -16 on both sides to fully isolate x and will leave you with x=2.5. Now substiture in 2.5 for x in y=2x-5 to get y=2(2.5)-5 which will then lead to y=0.

4 0
3 years ago
Ali has 3 different coins (10p, 50p and £1).
professor190 [17]

10 + 50 = 60

£1.00 convert into indian paise = 83p

10+50+83=143

8 0
3 years ago
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Which of the following is the function of f(x)?
Natasha2012 [34]

Answer:

f(x) = 8(x-3)

Step-by-step explanation:

F^ -1 ( x) = x/8 +3

Let y = x/8+3

To find the inverse

Exchange x and y

x = y/8+3

Solve for y

x-3 = y/8+3-3

x-3 = y/8

Multiply each side by 8

8(x-3) = y/8 * 8

8(x-3) = y

The inverse of the inverse is the function so

f(x) = 8(x-3)

5 0
3 years ago
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Determine the value of c that satisfies the given relation. 3c/1=c/2
worty [1.4K]

Answer:

3c/1=c/2

or, 6c =c

or 5c = 0

or c=0

7 0
3 years ago
Yvette uses 3.5 cans of blue paint to paint her bedroom and b cans of blue paint to paint her kitchen. If she used 6.25 cans tot
liberstina [14]

Answer:3.25

Step-by-step explanation:

8 0
3 years ago
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