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
ella [17]
2 years ago
13

Rob is saving to buy a new MP3 player. For every $12 he earns babysitting, he saves $9. On Saturday, Rob earned $36 babysitting.

How much money did he save?
Mathematics
1 answer:
tigry1 [53]2 years ago
5 0

Answer:

$27

Step-by-step explanation:

Set up a proportion where x is the amount of money he saved:

\frac{12}{9} = \frac{36}{x}

Cross multiply and solve for x:

12x = 324

x = 27

So, he saved $27

You might be interested in
1,536÷24 GETS BRAINLIEST​
Sliva [168]

Answer:

64

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Help me, please!!!!!!!!!​
NISA [10]

Step-by-step explanation:

part A

y=nx

part B

y=48×x

y=48x

4 0
3 years ago
A railroad track rises 30 feet for every 400 feet of track. What is the measure of the angle of elevation of the track?
gtnhenbr [62]

Answer:

Step-by-step explanation:

Rising 30 feet for every 400 feet of track is not a very large angle of elevation.  We set this up as a right triangle to use right triangle trig to solve for the missing angle.  The height is 30 and the hypotenuse is 400.  The height is the side opposite the angle in question, and the hypotenuse is the hypotenuse! This is the sin ratio.  Setting up the ratio using our info:

sin\theta=\frac{30}{400}

When you are looking for a missing angle measure, as we are here, use the 2nd-->sin buttons to find the inverse of sin, which looks like this:

sin^{-1}(

Enter in the fraction 30/400 after the parenthesis and then hit enter to get the angle measure of 4.3 degrees.

3 0
3 years ago
One number is 6 more than another. Twice the larger number is 5 times the smaller.
tresset_1 [31]

Answer:

The smaller number is 4

Step-by-step explanation:

Larger number = x

Smaller number = y

Write 2 equations

y + 6 = x

2x = 5y

Substitute x in the first equation to the second equation

2(y + 6) = 5y

Multiply 2(y + 6)

2y + 12 = 5y

Subtract 2y from both sides of the equation

12 = 3y

Divide both sides of the equation by 3

y = 4

x = y + 6 = 4 + 6 = 10

The smaller number is 4

Hope this helps :)

3 0
3 years ago
What is the sum of 0.09 and 0.22
iren [92.7K]
I think the answer is 0.31! 
7 0
3 years ago
Read 2 more answers
Other questions:
  • Place the following decimals on the number line below the numbers are 6.2 6.4 6.60 6.80
    6·1 answer
  • Find the next two terms in this sequence 10, 40, 160, __, __
    14·2 answers
  • | 10x + 10 | – 2 = 78
    10·1 answer
  • Lin and Jen each thought of a number. Lin thought of a 2-digit number. Jen’s number is 7 times as big as Lin’s. But, if Lin writ
    5·2 answers
  • Charlie guesses that his dog weighs 34.5 lb. The dog actually weighs 32.7 lb.
    12·1 answer
  • What is the unit rate of $1.12 for 8.2 ounces?
    6·1 answer
  • What is 7/10 divided by 2
    5·1 answer
  • Can anyone please explain this?
    6·1 answer
  • Please helppppppppppppppppppp :) .
    8·1 answer
  • A set of natural numbers between 50 and 55
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!