MATHEMATICS MIDDLE SCHOOL

What kind of slope is (6,-3)and (-4,-3)

Answers

Answer 1

Answer:

Step-by-step explanation:

Slope = y2- y1/x2 - x1

Given

x1 = 6

y1 = -3

x2 = -4

y2 = -3

Slope = -3 -(-3) /-4 - 6

= -3 + 3 /-10

= 0/10

= 0

This means that the line of the slope is horizontal

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PLEASE HELP ME ASAP!!!!

Using the order of operations rule, solve the following: 12 ÷ 2 + 4 – 2 × 3 = ? A. 24 B. 36 C. 0 D. 4

Answers

the answer is D, because you have to divide 12 by 2 so you get 6 then 2 times 3 to get 6, so now you should have 6+4-6 which will then become 10-6 which equals 4

$Use\ PEMDAS:\n\n\underbrace{12:2}_(=6)+4-\underbrace{2*3}_(=6)=6+4-6=10-6=\boxed{4}$

James estimated the total cost of groceries to be $50. The actual cost of the groceries is $65. What is the percent error? Round your answer to the nearest whole percent. Enter your answer in the box.

Answers

Percent error is the difference in percent between the estimated cost and the actual cost. So in this case the percent difference between 50 and 65. to find this we need to find out what percent the estimated cost is out of the actual cost, So what percent is 50 out of 65? We can find this by doing the equation 50 / 65, which is 0.76923076923.

This rounds to 0.77, which is 77%

So this means 77% is 50, and 100% is 65. So what is the difference? 100 - 77 = 23. So 23% is your answer.

Answer: 23% error.

Step-by-step explanation:

Percentage error = error in cost/actual cost X 100

Error = $65 - $50

= $15

Therefore, percent error

= 15/65 x 100

= 15 x 100/65

= 1500/65

= 23.07

Therefore, to the nearest whole %

= 23% error.

Gianna is paid $90 for 5 hours of work.a. At this rate, how much would Gianna make for 8 hours of work?
b. At this rate, how long would Gianna have to work to make $60?

Use a ratio table to solve.