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MAXImum [283]
3 years ago
11

Mrs. Kennedy is buying pencils for each of 315 students at hamilton elementary. The pencils are sold in boxes of tens. How can s

he use rounding to divide how many pencils to buy?
Mathematics
1 answer:
Galina-37 [17]3 years ago
8 0

315 / 10 = 31.5

4 and down stay the same,

5 and up round up

31.5 = 32

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some friends went to a local movie theater and bought four large buckets of popcorn and six boxes of candy.The total for the sna
WARRIOR [948]

The total of 2 buckets of popcorn and 3 boxes of candy would be $23.25

To answer this question you need to form a set of simultaneous equations and solve them. We can do this by saying that a bucket of popcorn = P, and a box of candy = C. Then we can say:

4P + 6C = 46.50

P + C = 9.75

There are then two possible ways to solve; you can either say that C = 9.75 - P using the second equation and then substitute it into the first, or you can multiply the second equation by either 4 or 6 to cancel out P or C.

I’m going to multiply the second equation by 4:

4P + 4C = 39

Now we can subtract this for, the first equation:

4P + 6C = 46.50

4P + 4C = 39

2C = 7.50

C = 3.75

Now we can substitute this value of C into one of the equations to find P:

P + C = 9.75

P + 3.75 = 9.75

P = 6

And now to answer the question, you just multiply P by 2 and C by 3 and add them together, which gives you $23.25

I hope this helps! Let me know if you have any questions :)

6 0
3 years ago
Julia charged $612 to her credit card. The cost of her next purchase caused her to go over her credit limit of $2000.
Fynjy0 [20]
She has already spent 612, and by adding C 612 has gone ABOVE 2000
So 612 + C MUST be Greater Than 2000
The answer is D
7 0
3 years ago
Read 2 more answers
Round to the nearest 10.<br> 473 <br>91<br>889<br> 124​
Novosadov [1.4K]

470

90

890

120

hope this helped :)

please mark as brainliest !!

3 0
3 years ago
Read 2 more answers
Easy: look at the picture in this question and please answer it!
Mice21 [21]

Answer: B) 70.50

Step-by-step explanation: john is buying 3 tickets for each of 2 movies total : 6 tickets each ticket costs 11.75

so 11.75*6

= 70.50

3 0
2 years ago
Which of the following values are solutions to the inequality -5 -6x &gt; -8?
kati45 [8]
The answer is :x< 1/2
6 0
2 years ago
Read 2 more answers
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