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PSYCHO15rus [73]
3 years ago
11

The cost, c, of paper towels, based on the number of rolls, r, is given by this equation.

Mathematics
2 answers:
Amiraneli [1.4K]3 years ago
4 0

Answer:

I think the cost for each roll is 1.29

Step-by-step explanation:

Hope this helps

Travka [436]3 years ago
4 0

\\ \sf\longmapsto c=1.29r

  • cost is 1$

\\ \sf\longmapsto 1=1.29r

\\ \sf\longmapsto r=\dfrac{1}{1.29}

\\ \sf\longmapsto r=0.7

  • Cost of 0.7 rolls is 1

Cost of 1 roll

\\ \sf\longmapsto \dfrac{1}{0.7}

\\ \sf\longmapsto \dfrac{10}{7}

\\ \sf\longmapsto 1.4\$

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Can someone plzz help me with these 2 questions. thanks!
Deffense [45]

9514 1404 393

Answer:

  4. height: 5√3 cm; area: 25√3 cm²

  5. 30√2 ft ≈ 42.43 ft

Step-by-step explanation:

4. The height of an equilateral triangle is (√3)/2 times the side length, so is ...

  height = (√3)/2 × (10 cm) = 5√3 cm

The area is given by the formula ...

  A = 1/2bh

  A = 1/2(10 cm)(5√3 cm) = 25√3 cm²

__

5. The diagonal of a square is √2 times the side length, so the distance from 3rd to 1st base is ...

  (30 ft)√2 ≈ 42.43 ft

__

The length of the diagonal of a square is something you should be familiar with. If you're not, you can figure the distance using the Pythagorean theorem.

  d = √(30² +30²) = √1800 ≈ 42.43 . . . feet

6 0
2 years ago
Maria earns $48 every three hours she works. How much will she earn by working 13 hours?
Valentin [98]

Answer:

$624

Step-by-step explanation:

48 x 13

5 0
3 years ago
Read 2 more answers
Jason is driving at 55 mph. He needs to keep his car within 5 miles per hour of his current speed. Write and solve an absolute v
djverab [1.8K]
Maximum speed: 55mph + 5mph = 60mph
minimum speed:  55mph - 5mph  = 50mph
Hope this helped?
5 0
3 years ago
Hai has 24 video games. Six of his games are sports related and the rest are role-playing games. Which ratio represents the numb
Ierofanga [76]
The total number of Games.....TNG=24
Sports Related Games...............SRG=06
Role Playing Games.....................RPG=18 (24-6)

The ratio of Role Playing Games to Total Number of Games=RPG:TNG
18:24
3:4 is the answer.  A ratio is actually a concept related to Division. Here in 18:24 you can divide both sides by 6 to reach the answer 3:4.


3 0
3 years ago
Read 2 more answers
Find the value of 13 + (-7)
Vikki [24]

Answer:

6

Step-by-step explanation:

Before solve this you've to know that,

( + ) × ( - ) = ( - )

( + ) × ( + ) = ( + )

( - ) × ( - ) = ( + )

Let us solve now.

13 + (-7)

13 - 7

= 6

Hope this helps you :-)

Let me know if you have any other questions  :-)

7 0
2 years ago
Read 2 more answers
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