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ella [17]
3 years ago
6

4/15:8 3/7:7/10 3.3/5:4.1/2

Mathematics
1 answer:
posledela3 years ago
4 0
I don't understand what you are trying to ask if you post this in question form or add a question I can probably help you other than that I don't think anyone knows what you need help with, I'm sorry sweety
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What is the equation of a line that is perpendicular to y=-5x+11 and passes through the point (3,3)?
son4ous [18]

Answer:

y=\frac{1}{5}x+\frac{12}{5}

Step-by-step explanation:

The slope of a line that is perpendicular to another will have an opposite-reciprocal slope. So, if the slope was -2, then the perpendicular slope would be \frac{1}{2} .

y=-5x+11

This is written in slope-intercept form:

y=mx+b

m is the slope and b is the y-intercept. Find the opposite-reciprocal of the slope, -5:

y=\frac{1}{5} x+b

Now we need to find the y-intercept. For this, substitute the given points for its appropriate value:

(3_{x},3_{y})\\\\3=\frac{1}{5}(3)+b

Solve for b:

Simplify multiplication:

\frac{1}{5}*\frac{3}{1}=\frac{3}{5}

Insert:

3=\frac{3}{5}+b

Subtract b from both sides:

3-b=\frac{3}{5}+b-b\\\\3-b=\frac{3}{5}

Subtract 3 from both sides:

3-3-b=\frac{3}{5}-3\\\\-b=\frac{3}{5}-3

Simplify subtraction:

\frac{3}{5}-3\\\\\frac{3}{5}-\frac{3}{1}\\\\\frac{3}{5}-\frac{15}{5}=-\frac{12}{5}

Insert:

-b=-\frac{12}{5}

Multiply both sides by - 1 to simplify b (it can be seen as -1b):

-b*(-1)=-\frac{12}{5}*(-1)\\\\b=\frac{12}{5}

Insert:

y=\frac{1}{5}x+\frac{12}{5}

:Done

6 0
3 years ago
John earns a point on 75% of his free-throw tries during basketball practice. If John takes 76 free-throw shots during practice,
Lynna [10]
John earned 57 points
5 0
3 years ago
Read 2 more answers
What is 2/3 times 9/5
Varvara68 [4.7K]
The answer would be1.2
5 0
3 years ago
Read 2 more answers
6) Carpeting costs $9.99 a yard. If Jan buys 17.4 yards, how much will it cost here (Round your answer
kogti [31]

This is the answer

Hope it helped

4 0
2 years ago
Read 2 more answers
a car left town A at 10:00 am and travelled towards town B at the average speed of 70 km/h. At the same time a truck left town B
Softa [21]
The important formula to this problem is distance=rate(time) or d=rt

Now, the speed of the car is 70 km/h, and the speed of the truck is 50 km/h. It will take the two vehicles the same amount of time to meet since they both left at the same time. So, since distance equals rate times time, and t = time:

the distance of the car = 70t
the distance of the truck = 50t

Because they both left in opposite directions, and the towns are 420 kilometers apart, the equation for this would be

70t+50t=420

We now solve the equation.

70t+50t=420 \\ 120t=420 \\  \frac{120t}{120}= \frac{420}{120}  \\ t=3 \frac{1}{2}

It will take the vehicles 3 and a half hours to meet. Since we're looking for the time, 3 and a half hours from 10:00 AM is 1:30 PM.

So, the car and the truck will pass each other at 1:30 PM.
8 0
3 years ago
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