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
Vedmedyk [2.9K]
4 years ago
7

A student babysitting for$5 per hour writes the expression 5n to represent the money he makes for n hours. another student write

s 3n 15 to represent the amount in dollars she makes. what is the second students hourly rate
Mathematics
1 answer:
Ymorist [56]4 years ago
6 0
If 5 per hour makes 5n, then what per hour makes 3n? (per=multiply, n=number of hours, # per hour= hourly rate) Hint: look at the coefficient (number being multiplied by the variable, which in this case is n) for the hourly rate.
You might be interested in
A pot is being used to boil off 1 kg of water. The specific energy required to cause the phase change is 2297 kJ/kg. Assuming th
lana66690 [7]

Answer:

It will take 58 seconds

Step-by-step explanation:

If you have 1 kg of water in the jar, half of it will be 0.5 kg.

To vaporize half of the water (0.500 kg) the energy supply needed is

2297 kJ/kg*0.5kg=1148.5 kJ

If the stove is supplying 20 kJ/s, the time its needed is

\frac{1148.5 kJ}{20\frac{KJ}{s} }=57.425 s

It will last at least 58 seconds to vaporize half of the water.

6 0
3 years ago
Worth 90 points and a brainliest if you get them all right not lying
tester [92]

Answer:

See Below

Step-by-step explanation:

1)√8 √10 √15

2)√3/16 √3/4

3)

0.25 R

0.25 R

0.33 R

4)

23 R

pi IR

√400 R

(√36)/2 R if its √(36/2) then IR

5)

pi

√8

Hope this helped!

6 0
3 years ago
Determine if y varies directly with x. Give the constant of variation, when appropriate. (picture below)
maxonik [38]

Based on the given variation, y does not vary directly with x and the constant of variation are 8, 3.2 and 1.25 respectively.

<h3>Variation</h3>

y = k × x

where,

k = constant of proportionality

y = -40

x = -5

y = k × x

-40 = k × -5

-40 = -5k

k = -40/-5

k = 8

when,

y = 8 and x = 2.5

y = k × x

8 = k × 2.5

8 = 2.5k

k = 8/2.5

k = 3.2

when,

y = 5 and x = 4

y = k × x

5 = k × 4

5 = 4k

k = 5/4

k = 1.25

Learn more about variation:

brainly.com/question/6499629

#SPJ1

5 0
2 years ago
Round the number 39,944 to the nearest hundred. Please
astra-53 [7]

Answer:

39900

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Which function represents a proportional relationship? A) f(x) = 3x 4 B) f(x) = 3 4x C) f(x) = 3x 4 + 3 4 D) f(x) = 3 4x + 3 4
densk [106]

Answer: OPTION B

Step-by-step explanation:

The equation of a line that passes through the origin is the following:

y=mx

Where "m" is the slope of the line.

By definition, Proportional relationships have the following form:

y=kx

Where "k" is the Constant of proportionality.

Then, as you can notice, if you graph a Proportional relationship you will get a line that passes through the origin.

Therefore, based on the explained above, you can conclude that the option that shows a function  that represents a Proportional relationship is the Option B.

Then, this is:

f(x)=\frac{3}{4}x

6 0
3 years ago
Read 2 more answers
Other questions:
  • Put the fractions from least to greatest: 3/4, 2/8, and 1/2
    14·2 answers
  • PLS HELP FOR BRAINLIEST ANSWER
    11·1 answer
  • adam had used 84 wihite squares 20 more white than yellow and 15 more red than yellow. what is the number of red squares adam us
    12·1 answer
  • Determine is an outlier is present in the given data set: 43, 69, 78, 88, 54, 73, <br> 54, 59,70
    7·1 answer
  • A phone company charges a monthly fee of $35.00 and $0.10 per text message. Bridget wants to pay less than $1200.00 total for he
    13·1 answer
  • HELP ME I NEED SOMEHELP<br> PLZ<br> PLZ<br> PLZ
    14·1 answer
  • Find The volume of a cilinder
    15·1 answer
  • What is the volume of a cylinder of a radius if 12cm and height 8cm
    13·2 answers
  • Please help! I need this fast!
    13·2 answers
  • Given the exponential equation 2X = 8, what is the logarithmic form of the equation in base 10? (5 points)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!