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Kipish [7]
4 years ago
15

Explain how to use multiplication  to check the answer to a division problem

Mathematics
2 answers:
irina [24]4 years ago
6 0
For example: 35 divided by 5 is 7. So to check with multiplication, just think 7 times 5 is what? 35. This is the same formula for everything.
Hope this helps!!
ZanzabumX [31]4 years ago
3 0

Answer: To check the division problem , there are steps

Step 1. First perform the division problem.


Step 2. Multiply the quotient and the divisor.


Step 3. Add the remainder to the product of quotient and divisor.


Step 4. The final answer should be equal to the dividend.

For example to divide 65 by 2

Here, Dividend=65 , Divisor=2

After perform division, we get Quotient=32 and remainder=1

To check:-

32×2+1=64+1=65→ Dividend

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20% of 145<br> Please show work!!!!<br> I need an answer ASAP!!!!
IRISSAK [1]

Answer:

20/100 × 145

2/10 × 145

290 ÷ 10 = 29

Thus, 20% of 145 is 29

5 0
3 years ago
Read 2 more answers
A company that teaches self-improvement seminars is holding one of its seminars in Middletown. The company pays a flat fee of $1
Nutka1998 [239]

Answers:

To reach the breakeven point, how many attendees will that take?  <u>   117   </u>

What will be the company's total expenses and revenues?  <u>    $1755  for each   </u>

=============================================================

Explanation:

x = number of attendees

C(x) = cost function for the company

C(x) = 14x+117

This is because the company pays $14 per person, so x of them accounts for 14x dollars. Then we add on the flat fee of $117 to get 14x+117 dollars overall.

In contrast, the revenue is

R(x) = 15x

because each attendee brings in $15 for the company

The breakeven point is when the cost and revenue are the same. This produces a profit of $0.

R(x) = C(x)

15x = 14x+117

15x-14x = 117

x = 117

If 117 people attend the seminar, then the company breaks even.

To check this, we'll compute the cost and revenue

C(x) = 14x+117

C(117) = 14*117+117

C(117) = 1755

R(x) = 15x

R(117) = 15*117

R(117) =  1755

The cost and revenue is $1755 for each. Because we get the same value, this confirms the correct x value.

Since 117 people is the breakeven point, the company should aim for an attendee count above this, so they can get a positive profit. At some point, there is a max capacity so x can't go up forever.

7 0
2 years ago
a story has a contest to guess the mass of 10000 peanuts. If a peanut has a mass of about 0.45 then what would be a reasonable g
mamaluj [8]
1000000 i think...................................................                                          
7 0
3 years ago
Read 2 more answers
kayla and megan are growing plants for a science experiment.for the frist measurement kayla grows 5/7 of a inch. megans plant gr
Vsevolod [243]
It probly is about 4/5
8 0
4 years ago
What is the distance between the zoo and the library?
KATRIN_1 [288]
The answer is as follow

sin60° = 400√3 / H1, implies H1=  400√3 / sin60° <span>
sin30° = </span>400√3 / H2, implies H2=  400√3 / sin30° <span>
and the if the distance is D,
so we can find D such that D= H2 - H1=</span>400√3 / sin30° - 400√3 / <span>sin60°
D= </span>400√3(1/sin30°  - 1/ sin60°)=400√3(2-1.15)=338.11<span>√3</span>
3 0
3 years ago
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