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Inessa05 [86]
2 years ago
15

How to solve this math problem?

Mathematics
1 answer:
fiasKO [112]2 years ago
5 0
Awnser is below in the photo

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Perpendicular to y=2x+9 and has the point (4,-1)
Wewaii [24]

Answer: y =  -\frac{1}{2}x + 1

Step-by-step explanation:

      First, we will find the slope. The slope of perpendicular lines are negative reciprocals.

      In this case, the first slope is 2. The negative of 2 is -2, and the reciprocal of -2 is -\frac{1}{2}.

      Now, we will plug in this new slope, the point given, and solve for the <em>b</em>, or the y-intercept.

y = <em>m</em>x + <em>b</em>

(-1) =  (-\frac{1}{2})(4) + <em>b</em>

-1 =  -2 + <em>b</em>

1 = <em>b</em>

     Lastly, we will write our equation.

y = <em>m</em>x + <em>b</em>

y =  -\frac{1}{2}x + 1

          The line is y =  -\frac{1}{2}x + 1, or y = 1 - \frac{x}{2}.

4 0
2 years ago
Read 2 more answers
The Wagner family uses up a 1/2-gallon jug of milk every 3 days. At what rate do they drink milk?
luda_lava [24]

Answer:

\frac{1}{6} gallon per day

Step-by-step explanation:

Rate = gallons per day

Rate = \frac{0.5 gallons}{3 days} = \frac{1 gallon}{6 days}

5 0
2 years ago
Read 2 more answers
PLEASE HELP ME I AM TAKING A TEST AND I NEED HELP!!!
zhannawk [14.2K]
Part A.
y=4x+3

Part B.
11=4x+3
8=4x
2=x
2 dollars

Part C.
4(3)+4(2)=12+8=20

It would be enough if there is no sales tax.

Hope this helps!
Your fortune is "Only one fortune a day!"
3 0
3 years ago
What is the value of x? x−2/5=7 Enter your answer in the box in simplest form. x =
fenix001 [56]

Answer:

Your answer is 17.5

Step-by-step explanation:

Turn your fraction into a decimal

2/5 = 0.4

Next multiply my given answer by 0.4

17.5 x 0.4 = 7

Therefore 17.5 is your final answer

3 0
3 years ago
I have to do Decompose fractions and my problem is 3 over 7 what do I do?
mart [117]
Just simplify them to a decimal by dividing the numerator by the denominator. 
4 0
3 years ago
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