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MariettaO [177]

3 years ago

12

How can estamating products help you to place the decimal correctly

2 answers:

Alexxandr [17]3 years ago

7 0

If we have the problem: 3 times 1.2, and if we estimate the product, we get (3 times 1) 3. If you really do multiply it out, then you get 3.6. But what if you didn't know that, and you put 0.36. 0.36 is say off from our estimated product: 3. Therefore, we know that 0.36 is wrong, and 3.6 is correct (or reasonably correct), because 3.6 is close of 3. I hope this helps! :D

olga55 [171]3 years ago

4 0

It is easier because you can see if your decimal answer is closer to the actual answer

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8. Mitchell bought 600 shares of Centerco two years ago $34.50 per share. He sold them yesterday for $38.64 per share.

g100num [7]

Answer:

a. percentage increase in price per share = 12%

b. The total purchase price for the 600 shares is $20,700

c. The profit for the 600 shares is $2,484

d. The profit for the 600 shares is $2,484

Step-by-step explanation:

a. Initial price per share = $34.50

Current price per share = $38.64

Change or increase in price = $38.64 - $34.50 = $4.14

percentage increase in price per share = 12/34.50 x 100% = 12%

b. Total number of shares = 600

Price = $34.50

The total purchase price for the 600 shares = ($34.5x600) = $20,700

c. Total cost of 600 shares = ($34.5x600) = $20,700

Total revenue from sales = ($38.64x600) = $23,184

Profit from the 600 shares = Total selling price - total cost price

= $23,184 - $20,700 = $2,484

d. Total cost of 600 shares = ($34.5x600) = $20,700

Total revenue from sales = ($38.64x600) = $23,184

Profit from the 600 shares = Total selling price - total cost price

= $23,184 - $20,700 = $2,484

7 0

3 years ago

I need to find the answer to 2/3 - 1/5. What is it?

Hunter-Best [27]

2/3 - 1/5

make a common denominator

10/15 - 3/15

simplify

7/15 is your answer

hope this helps

4 0

2 years ago

Ellen must take 4 courses this semester. She has a list of 3 math courses and 4 science courses to from which to choose. (a) Ini

prisoha [69]

Answer:

So the number of total combinations is 35.

Step-by-step explanation:

We know that Ellen must take 4 courses this semester. She has a list of 3 math courses and 4 science courses.

Therefore, she have total 7 courses.

So, we calculate the number of combinations to choose 4 out of 7 courses.

We get:

$C_4^7=\frac{7!}{4!(7-4)!}=35\\$

So the number of total combinations is 35.

7 0

3 years ago

What is the estimate of 92 times 68

solong [7]

92 can be rounded to 90
68 can be rounded to 70

90 x 70 = 6300

8 0

3 years ago

Read 2 more answers

Is -2 a solution to 4x^(3)-x^(2)+16x-4

sergiy2304 [10]

Answer:

Not a solution

Step-by-step explanation:

In order for $x=-2$ to be a solution, the result after substituting must be 0:

$4(-2)^3-(-2)^2+16(-2)-4\stackrel{?}{=}0$

$4(-8)-4-32-4\stackrel{?}{=}0$

$-32-40\stackrel{?}{=}0$

$-72\neq0$

Therefore, $x=-2$ is not a solution to $4x^3-x^2+16x-4$

3 0

2 years ago