1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Likurg_2 [28]
3 years ago
7

What is the value of R? 3r–8=7+8r

Mathematics
1 answer:
stellarik [79]3 years ago
6 0
The answer to r is going to be the lucky number 5
You might be interested in
Solve the simultaneous equation<br> 2x+4y=1<br> 3x+5y=7b
Lyrx [107]

Step-by-step explanation:

  • 3x+5y=7b equation 1
  • 2x+4y=1

2x=-4y+1

  • x=(-4y+1)/2
  • x=(-4y+1)/2 in equation 1

3×(-4y+1)/2+5y=7b

(-12y+3)/2+5y=7b

(-12y+3+10y)/2=7b

(-12y+3)/2=7b

-12y+3=14b

-12y=14b-3

  • y=3-14b/12
  • y=3-14b/12 in x=(-4y+1)/2

x=(-4×{3-14b/12}+1)/2

x=(-3+14b)/3+1/2

x=14b/3×1/2

  • x=7b/3
8 0
2 years ago
After school, Hugo helps out at a bunny shelter called Hoppy's Home. He cleans cages and feeds all 8 bunnies at the shelter. In
amm1812

Answer:

25.3

1_ draw a triangle

the shortest side is a which will be 8(bunnies)

diagonal will be c ( what you need to find )

the last side will be b.

so the equation is a2+b2=c2 ( 2=squared)

that means..... 8x8+24x24=c

8x8=64

24x24=576

then add

576+64=640

the find square root

√640=25.2982212813

simplify to 25.3

you know your answer is correct because c is always the biggest side

5 0
3 years ago
bright pools is building a rectangular pool at a new house. The perimeter of the pool has to be 94 feet and the length has to be
bekas [8.4K]

Answer:

\displaystyle 15\:feet\:wide \\ 32\:feet\:long

Step-by-step explanation:

{2 + 2w = l

{94 = 2w + 2l

94 = 2w + 2[2 + 2w]

94 = 2w + 4 + 4w

94 = 4 + 6w

- 4 - 4

_________

\displaystyle \frac{90}{6} = \frac{6w}{6}

\displaystyle 15 = w[Plug this back into both equations above to get the length of 32 feet]; \displaystyle 32 = l

I am joyous to assist you anytime.

4 0
3 years ago
Please, I need to know how this question is done. please
oksian1 [2.3K]

subsitute x = 6 into the lengths

3(6) -7

18 - 7

11cm

(6) + 5

11cm

therefore it is a square when x = 6 because the sides are all equal

8 0
2 years ago
Evaluate the expression when x=3 and y=-6<br> 7y-x
Alenkasestr [34]
7(-6) - 3
-42 -3
-45
Your answer is -45
8 0
3 years ago
Read 2 more answers
Other questions:
  • Desmond ordered his favourite pizza with 1 2 12 slices. Sadly, he could finish only 7 5 % 75% of the whole pizza. How many pizza
    15·1 answer
  • A number in scientific notation will have a____ exponent when it is less than 1 (A) negative (B) reduced (C) positive (please an
    14·1 answer
  • Given g (x) = 20x - 189 what is g (1/2) <br><br>please help me quick!​
    13·1 answer
  • Identify all of the root(s) of g(x) = (x2 + 3x - 4)(x2 - 4x + 29).
    11·2 answers
  • In a certain chemical, the ratio of zinc to copper is 4 to 17. A jar of the chemical contains 714 grams of copper. How many gram
    5·1 answer
  • If 12 x 2 is 24, 12 x 3 is 36, 12 x 4 is 48, then what is 12 x 12?
    13·2 answers
  • 5x - y + z = -6<br> 2x + 7y + 3z = 8<br> x + 2z = 6
    9·1 answer
  • Walmart is having a huge 25 % off sale!!!
    15·2 answers
  • A stadium has 47,000 seats. Seats sell for $42 in Section A, $36 in Section B, and $30 in Section C. The number of seats in Sect
    11·1 answer
  • Can someone help me I’ve been stuck on this.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!