MATHEMATICS MIDDLE SCHOOL

What's 2b+8-5b+3=-13+8b-5

Answers

Answer 1
Answer:

Answer:

Alright well solve for b by simplifying both sides of the equation, then isolating  the variable

Exact form: b = 29/11

Decimal form: b = 2.63 Well Hope this helps :)

Step-by-step explanation:
Answer 2
Answer: b=29.11 or 2.63 there

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Please help out. Max points given a=12; b=?; c=22

Answers

18.44 because Pythagorean Theorem says that 12^2 + b^2 = 22^2. Then to solve you square the numbers, 144 - b^2 = 484, then subtract 144 from 484 and get 340, and the square root of 340 is 18.44.

Uh... I think I got it right, how about 18.44?

Plz help me i dot know what to do Describe how the diagram models the problem. In your own words, what is valuable about the diagram?

Answer in at least 3 complete sentences.

Answers

What it is showing is that you need 6 faces to make one bottle. So, if the problem is how many faces are in 6 bottles then you would explain multiplying the 6 by 6 to get 36. But I’d the problem is how many bottles can you make with __ faces then you use the two sentences to explain dividing. I am going to go with my first example to show you what it could look like. “What is it showing is that you need 6 faces to make 1 bottle. So 6x6=36. So, the answer is 36.” :)

The endpoints of the diameter of a circle are (-7,3) and (5,1) . What is the center of the circle

Answers

Answer:

The center is the point (-1,2)

Step-by-step explanation:

we know that

The center of the circle is equal to the midpoint of the endpoints of the diameter

so

The formula to calculate the midpoint between two points is equal to

M((x1+x2)/(2),(y1+y2)/(2))

substitute the values

M((-7+5)/(2),(3+1)/(2))

M((-2)/(2),(4)/(2))

M(-1,2)

therefore

The center is the point (-1,2)

what's the unit rate for $4.50,7.50,6.50,7.50,4.50,5.00,1.50,1.65,3.75,3.95!!!!!PLZ HURRY PROJECT DUE ON TUESDAY!!!!!

Answers

just add all the numbers together, the divide by the amount of numbers

2 divided by 1 and 6/7

Answers

This problem, as written, requires a bit of guessing regarding your intentions.  My interpretation is that you want to do this division:


    2

----------

 1  6/7

If that's correct, here's what to do:  rewrite 1  6/7 as 13/7 (an improper fraction).

Then divide:

   2

--------      This is equivalent to the multiplication (2/1)(7/13) = 14/13 (answer)

 13/7

Cara ran 3 miles in 30 minutes. What is her constant rate of change in miles per hour?

Answers

Answer:

6 mph

Step-by-step explanation:

3 miles -----> takes 30 minutes

recall that 30 minutes = 1/2 an hour = 0.5 hours

hence,

3 miles -----> takes 30 minutes = 0.5 hrs

therefore her rate of change (i.e speed) in mph

= number of miles ran ÷ time taken in hours

= 3miles ÷ 0.5hrs

= 6 mph

Answer:

curious if you got this one?

Which does NOT represent a constant rate of change of 70 miles per hour for a car?

Question 4 options:

The car travels 245 miles in 3.5 hours.

The car travels 140 miles in 2 hours.

d = 70t, where d represents distance in miles and t represents time in hours.

d = 70t, where d represents distance in kilometers and t represents time in hours.

Step-by-step explanation:
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