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balu736 [363]
3 years ago
8

What is the variable 2-r=-7

Mathematics
2 answers:
lora16 [44]3 years ago
4 0
The answer is r it's always the letter in the problem
arlik [135]3 years ago
3 0

Answer:

r

Step-by-step explanation:

the variable is always the letter in the problem. Hope that this helps you and have a great day :)

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What is six times more than three times a number is that number increased by 24. Find the number. Write an equation. And find x
Lubov Fominskaja [6]

Given the information, you can only write an expression and simplify it:

6(3(x+24))

6(3x+72)

SOlution: 18x+432

I hope I helped you with your solution! If you could give me brainliest, I would be very thankful!

4 0
3 years ago
Need help with geometry pls picture provided
andrew-mc [135]

Answer:

y= 30 x=15

set up your proportions for example 9/6 to y/20 and 9/6 to x/10 and then cross multiply

6 0
3 years ago
Residents of the town of Maple Grove who are connected to the municipal water supply are billed a fixed amount monthly plus a ch
Strike441 [17]

9514 1404 393

Answer:

  • $0.04 per cubic foot
  • c(w) = 0.04w +80
  • 3400 cubic feet

Step-by-step explanation:

(a, b) We are given two pairs of values:

 (w, c) = (1900, 156) and (2600, 184)

so we can write the equation of the relationship using the 2-point form of the equation of a line.

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  c = (184 -156)/(2600 -1900)(w -1900) +156 . . . . . substitute given points

  c = 28/700(w -1900) +156

  c(w) = 0.04w +80

The charge per cubic foot is $0.04.

__

(c) For a bill of $216, the amount of water used is ...

  216 = 0.04w +80

  136 = 0.04w

  3400 = w

Use of 3400 cubic feet of water would lead to a bill of $216.

4 0
3 years ago
LINELUSUWELDI<br>Take a pea<br>()) Evaluate the expression.<br>(9 + 5 - 4​
Natalka [10]

Answer:

9 +5 is 14 then 14 - 4 =  10

Step-by-step explanation:

when using pemdas you go in order but since it shows addition and subtraction you do which ever comes first. Same with multiplication and division

3 0
3 years ago
What is the best approximation for the circumference of a circle with a diameter of 300 ft?
geniusboy [140]

Hello!

\bf Answer

The best approximation for the circumference is \boxed{ \bf 942~ft.}

______________________________________________________


\bf Explanation

c = 2\pir

r = 300 ÷ 2

r = 150


c = 2 × 3.14 × 150

c = 942

6 0
3 years ago
Read 2 more answers
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