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kifflom [539]
3 years ago
7

In a grade seven class, 18 students have pets, and 12 do not. What percent of the class has a pet?

Mathematics
2 answers:
Svetradugi [14.3K]3 years ago
7 0
Answer :
If 18+12 is 30 and only 18 of them has pets then 70 percent have pets
Gelneren [198K]3 years ago
6 0
The answer is actually 60% because there are 30 students
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Help thanks ASAP pls
lakkis [162]

Answer:

A

Step-by-step explanation:

There is four graphs that are given to you and you must identify which one is logical. For you I'll explain how this works. Suppose you rented a bus but you went by yourself so that means you'll have to pay the full 400. However, if you have a buddy then you'll have to pay 200 while your buddy pays the other 200.

Basically 400/x

x=the amount of people going on the trip.

The reason why it's not C since you'll notice that the 3rd dot nearest to the left is 200 which 200 times 3 doesn't equal up to 800.

7 0
3 years ago
dona ate7/12. box of popcorn. Jack ate 4\10 box of popcorn the boxes of popcorn are the same size.write to explain how to use a
swat32

7/12 = 3/4

4/10= 2/5

5 0
3 years ago
Someone help me with this math homework please!
Reil [10]

Answer:

Option number B

Step-by-step explanation:

As per the statement:

Pieter wrote and solved an equation that models the number of hours it takes to dig a well to a level of 72 feet below sea level.

Given the equation as:

7h - 5 ( 3h -8 ) = -72

Using distributive property, 

a ⋅ ( b + c ) = a ⋅ b + a ⋅ c

7h - 15h + 40 = - 72

Combine like terms;

-8h + 40 = -72

Subtract 40 from both sides we have;

-8h 8= -112

Divide both sides by -8 we have;

h = 14 hours

Therefore, the statement is true about Pieter’s solution is, It must be a positive number since it represents a number of hours.

3 0
3 years ago
Bernice takes a multiple-choice test, each question having 4 choices. If Bernice has no idea of any answer and simply guesses, f
hoa [83]

We want to find the probability that Berenice gets all the answers correct.

<u>1 question:</u>

Each question has 4 options, each option has the same probability of being the correct option, so she has a 25% of<u> randomly selecting the correct option.</u>

Then the probability here will just be equal to the number of correct options (1) over the total number of options (4)

p = 1/4

2 questions:

We already know the probability for one question, then the probability of getting two questions correct will be equal to the <u>product of the individual probabilities</u> for each question:

p = (1/4)*(1/4 = 1/16

3 questions:

Similar approach as before:

p = (1/4)*(1/4)*(1/4) = 1/64

4 questions:

p =  (1/4)*(1/4)*(1/4)*(1/4) = 1/256

If you want to learn more, you can read:

brainly.com/question/23044118

6 0
3 years ago
A company orders a number of bottles from a factory. The 8 machines in the factory could make all the bottles in 5 days. All the
Thepotemich [5.8K]
We know that
<span>8 machines in the factory could make all the bottles in 5 days
so
100%-----------> 5 days
1 day------------> 100%/5------> 20% with 8 machines
1 machine work at the rate-------> 20%/8-----> 2.5% per day

day 1---------> </span><span>4 machines are used to make the bottles-----> 4*2.5%---> 10%
</span>day 2--------> 4 machines are used to make the bottles-----> 4*2.5%---> 10%
day 3-------->8 machines are used to make the bottles-----> 8*2.5%---> 20%
day 4-------->8 machines are used to make the bottles-----> 8*2.5%---> 20%
day 5-------->8 machines are used to make the bottles-----> 8*2.5%---> 20%
day 6-------->8 machines are used to make the bottles-----> 8*2.5%---> 20%
<span>total work in 6 days=[10+10+20+20+20+20]------> 100%

the answer is
6 days

</span>
5 0
4 years ago
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