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Bogdan [553]
3 years ago
12

The EPA standard for safe drinking water is a maximum of 1.3 milligrams of copper per liter of water. A water testing firm found

8.3 milligrams of copper in a 5-liter sample drawn from Jim and Sharon LeBlanc's
house. Is the water safe or not? By how much does the amount of copper exceed or fall short of the maximum allowed?

Is the water safe for drinking?

No
Yes
Mathematics
1 answer:
AnnyKZ [126]3 years ago
3 0
I think the answer is no
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Determine the total cost or selling price to the nearest cent $65 video game ; 25% discount?
kodGreya [7K]

Answer:

48.75$

Step-by-step explanation:

the difference is  about 16.25$

6 0
3 years ago
The ratio of students who prefer pineapple to students who prefer kiwi is 12 to 5. Which pair of equivalent ratios could be used
AlexFokin [52]

Answer:

<u> 105</u> students could prefer kiwi if there are 357 total students.

Step-by-step explanation:

Given:

The ratio of students who prefer pineapple to students who prefer kiwi is 12 to 5.

Now, to find number of students prefer kiwi if there are 357 total students.

Let the students prefer pineapple be 12x.

And the students prefer kiwi be 5x.

Total students = 357.

So, we set an equation to get the number of students who prefer kiwi.

According to question:

12x+5x=357

17x=357

<em>Dividing both sides by 17 we get:</em>

x=21.

<em>Thus, students prefer kiwi are:</em>

5x

=5\times 21=105.

Therefore, 105 students could prefer kiwi if there are 357 total students.

3 0
3 years ago
What are the solutions of the quadratic equation?
ANEK [815]
In this proble, we are asked to determine the roots of the quadratic equation x^2 + 11 x = -24. The standard form is x^2 + 11 x + 24 = 0. the second term is the negative sum of the roots and the third terms is the equal to the product of the roots.Hence the roots should be -3 and -8.  
8 0
3 years ago
Read 2 more answers
MATH HELP ASAP PLEASE
Nataly [62]

Answer:

53lbs

Step-by-step explanation:

if he bought three bags of gravel that are 20 lbs. each then he would have 60 lbs. of gravel. In the end he only had 7 pounds left so you would subtract 7 from 60 and get 53 pounds.

7+x=60 or 60-7=53

i hope this helped!

5 0
3 years ago
Help! Please. I don’t know what to do. I got this wrong. Thanks.
strojnjashka [21]

Answer: I believe the answer would be 1/9 ?

7 0
3 years ago
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