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
amid [387]
3 years ago
10

John earned $12 a day for babysitting his siblings after school each weekday (he did not babysit on weekends). He liked to have

a small amount of money to spend on treats at the school canteen that his parents refuse to buy, but he also wanted to build up some savings. John decided to put a fraction of his earnings into a jar straight away. He spent all the rest on canteen treats.
How much money did John earn over a nine week term?

After 9 weeks, John had $378 in his jar. What percentage of his money did he save?
Mathematics
1 answer:
babymother [125]3 years ago
3 0

Answer:

He earns $540

70% of his money went to savings

Step-by-step explanation:

9 weeks x 5 days a week = 45 days

45 days x $12 a day = $540

378 * 100 / 540 =  (378*100) / 540 =  37800/540 = %70

You might be interested in
The table below shows all of the possible outcomes for rolling two six sided number cubes what is the probability of rolling an
Vanyuwa [196]

<u>Answer:</u>

The probability of rolling an even number first and an odd number second is \frac{1}{4}

<u>Solution: </u>

As two cubes are 6 sided,  the total number of possibilities are (6\times6) = 36

Now in those possibilities the first number will be even and the second number will be odd.  If we check the table, such pairs are,  

(2,1), (2,3), (2,5), (4,1), (4,3), (4,5), (6,1), (6,3), (6,5)

So, we can see we have total 9 set with the combination of first number even and second number odd.  So, the probability of rolling with this combination will be \bold\frac{9}{36}=\frac{1}{4}\bold

6 0
4 years ago
What is the surface area of a cylinder with base radius 4 and height 72​
Ne4ueva [31]

Answer:

1910.09

Step-by-step explanation:

A≈1910.09

r Radius

4

h Height

72

5 0
3 years ago
Read 2 more answers
The table shows a proportional relationship between the mass, in kilograms
OlgaM077 [116]

Answer:

C) Dog: 40 kg, Medicine: 1.6 mL

D) Dog: 35 kg, Medicine: 1.4 mL

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

Let

x --->  the mass, in kilograms of a dog

y ---> milliliters of flea medicine a veterinarian prescribes

<u><em>Find the value of the constant of proportionality k for the given data</em></u>

k=\frac{y}{x}

For x=50 kg, y=2 mL ----> k=\frac{2}{50}=0.04\ mL/kg

For x=10 kg, y=0.4 mL ----> k=\frac{0.4}{10}=0.04\ mL/kg

For x=5 kg, y=0.2 mL ----> k=\frac{0.2}{5}=0.04\ mL/kg

so

The linear direct equation is equal to

y=0.04x

<u><em>Verify each choice</em></u>

A) Dog: 15 kg, Medicine: 0.9 mL

Divide the milliliters of medicine by the kilograms of the dog and compare the result with the constant of proportionality

\frac{0.9}{15}= 0.06\ mL/kg

so

0.06 \neq 0.04

therefore

These numbers could not be used as the missing values in the table

B) Dog: 25 kg, Medicine: 0.8 mL

Divide the milliliters of medicine by the kilograms of the dog and compare the result with the constant of proportionality

\frac{0.8}{25}= 0.032\ mL/kg

so

0.032 \neq 0.04

therefore

These numbers could not be used as the missing values in the table

C) Dog: 40 kg, Medicine: 1.6 mL

Divide the milliliters of medicine by the kilograms of the dog and compare the result with the constant of proportionality

\frac{1.6}{40}= 0.04\ mL/kg

so

0.04 = 0.04

therefore

These numbers could  be used as the missing values in the table

D) Dog: 35 kg, Medicine: 1.4 mL

Divide the milliliters of medicine by the kilograms of the dog and compare the result with the constant of proportionality

\frac{1.4}{35}= 0.04\ mL/kg

so

0.04 \neq 0.04

therefore

These numbers could be used as the missing values in the table

E) Dog: 20 kg, Medicine: 1.2 mL

Divide the milliliters of medicine by the kilograms of the dog and compare the result with the constant of proportionality

\frac{1.2}{20}= 0.06\ mL/kg

so

0.06 \neq 0.04

therefore

These numbers could not be used as the missing values in the table

5 0
3 years ago
Emily needs 21 feet of wire. Andy needs 15 feet of wire. How much will each of them spend for wire?
Inessa05 [86]

Answer:

$540.

Step-by-step explanation:

Aprrox some wire cost $15. And 21 x 15= 315. And 15 x 15= 225, so you add and you should have $540.

6 0
3 years ago
Valerie and her parents are going to her grandparents' house in Tennessee. It is a 3-hour drive. If they leave at 9:00 am and do
prisoha [69]

Answer: 12:00 pm

Step-by-step explanation:

Valerie and her parents are goig to see her grandparents.

The grandparents leave 3 hours away.

They leave at 9:00 am.

The rime they'll arrive is therefore:

= 9 + 3 hours

= 12:00 pm

3 0
3 years ago
Other questions:
  • Which expression is a perfect cube?
    13·2 answers
  • Can someone help me please divide the following and then check by multiplying<br> 37,371\206
    10·2 answers
  • You made some snacks for a party. You have 24 cheese snacks, 18 yogurt snacks, and 32 vegetable snacks. Total number of snacks.
    11·2 answers
  • On a survey ⅞ students said that they preferred music over Art of those students who chose music 5/7 of them want to learn a ins
    14·1 answer
  • Which expression is equivalent to (4−3)−6?<br><br> 418<br> 43<br> 4−18<br> 4−9
    15·2 answers
  • Solve for r , what is r equal to ?
    9·1 answer
  • 5.
    10·1 answer
  • Use the number 751,486.<br> 5. Write the digit in the thousands place.
    9·1 answer
  • -2|x+5| =8<br> can you plz help me!!
    14·2 answers
  • Can you please solve this please and thank you.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!