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3 years ago

What is the slope of the line represented by the equation -2y=x-1?

Mathematics

2 answers:

Serggg [28]3 years ago

8 0

In the equation of a straight line: y = mx + c, slope is denoted

by the letter m.

$\it -2y = x-1|_{:(-2)} \Rightarrow y = -\dfrac{1}{2}x+\dfrac{1}{2} \Rightarrow m = -\dfrac{1}{2}$

ozzi3 years ago

5 0

The slope is negative one half or -1/2

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A 2-gallon bottle of fabric softener costs $16.64. What is the price per cup?

Burka [1]

Answer:

each cup would cost $0.52

Step-by-step explanation:

there are 16 cups in 1 gallon so you multiply that by two. Then you have 32 so you divide 16.64 by 32 and you end up with 0.52. hope this helped :))

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2 years ago

Susan is celebrating her birthday by going out to eat at five guy's for burgers. If the bill in $40 and she wants to leave a tip

damaskus [11]

Answer:

Step-by-step explanation:

Susan can easily figure the tip by the following procedure. 10% of the bill is the amount with the decimal point moved one place to the left, so is $4.00. 5% of the bill is half that, or $2.00.

15% of the bill is 10% + 5%, so is $4.00 +2.00 = $6.00. The tip will be $6.00.

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3 years ago

Pls helpeddddddddddddddd

Dmitrij [34]

Answer:

Step-by-step explanation:

Remark

The easiest way to do this is to Substitute for y in the top equation.

2x + 4y = 18 Divide by 2

2x/2 + 4y/2 = 18/2

x + 2y = 9

Substitute -3x + 2 in for y in the equation above

x + 2(-3x + 2) = 9

x - 6x + 4 = 9

Combine like terms on the left

-5x + 4 = 9

Subtract 4 from both sides.

-5x + 4-4 = 9- 4

-5x = 5

Divide by -5

-5x/-5 = 5/-5

x = - 1

That makes A and C incorrect.

y = -3x + 2

y = -3(-1) + 2

y = 3 + 2

y = 5

The correct answer should be (-1,5) which is B

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2 years ago

20 points if you help me solved this problem plz it’s urgent someone plz help me I need help! Will mark you as brainiest!

deff fn [24]

Answer: see below

Step-by-step explanation:

C(x) = 39 when 0 < x ≤ 1.0

C(x) = 63 when 1.0 < x ≤ 2.0

C(x) = 87 when 2.0 < x ≤ 3.0

C(x) = 111 when 3.0 < x ≤ 4.0

C(x) = 135 when 4.0 < x ≤ 5.0

C(x) = 159 when 5.0 < x ≤ 6.0

Based on the information I provided above, the answers are:

a) x= 0.6, C(x) = 1.0

x = 1.0, C(x) = 39

x = 1.1, C(x) = 63

x = 2.5, C(x) = 87

x = 3.0, C(x) = 87

x = 4.8, C(x) = 135

x = 5.0, C(x) = 135

x = 5.3, C(x) = 159

b) If C(x) = 87, then 2.0 < x ≤ 3.0

c) Domain (all possible x-values): 0 < x ≤ 6.0

d) Range (all possible y-values): {39, 63, 87, 111, 135, 159}

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3 years ago

HELP!!THANKS FOR ACCURACY

anyanavicka [17]

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3 years ago