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3 years ago

Calvin buys a book for $14.70, which is a %30 discount off the original price

Mathematics

1 answer:

tatyana61 [14]3 years ago

8 0

$10.29 (14.7)(.3)= 4.41. 14.7-4.41

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You purchase a burrito for $8.39 and a juice for $2.25. You pay for both items with a $10 bill and a $5 bill. Complete a verbal

Mandarinka [93]

Answer:

You will get $4.36 back.

Step-by-step explanation:

You have to total the cost of the food and drink.

8.39 + 2.25 = 10.64

You give your total money to the cashier to pay for your goods.

10 + 5 = 15

The cashier will give you the refund or change back.

15 - 10.64 = 4.36

3 0

3 years ago

1. The formula for the volume of a cone is

Andre45 [30]

Answer:

$r=\sqrt{\frac{3V}{\pi\ h}}$

Step-by-step explanation:

The volume of cone is given by:

$V=\frac{1}{3}\pi\ r^2\ h$

where $r$ is the radius of the base and $h$ is the height of the cone.

We need to solve for $r$

we have $V=\frac{1}{3}\ \pi\ r^2\ h$

Multiplying both sides by 3 to remove $\frac{1}{3}$

⇒ $3\times V=3\times \frac{1}{3}\ \pi\ r^2\ h$

⇒ $3V=\pi\ r^2\ h$

dividing both sides by $\pi\ h$

⇒ $\frac{3V}{\pi\ h}=\frac{\pi r^2 h}{\pi\ h}$

⇒ $\frac{3V}{\pi\ h}=r^2$

Taking square root both sides:

⇒ $\sqrt{\frac{3V}{\pi\ h}}=\sqrt{r^2}$

⇒ $\sqrt{\frac{3V}{\pi\ h}}=r$

∴ $r=\sqrt{\frac{3V}{\pi\ h}}$

3 0

3 years ago

Read 2 more answers

Which are not polynomials?

olga nikolaevna [1]

B or E are most likely the answer but I’m not too sure

5 0

3 years ago

Multiply (2x^2-3x)(3x^2+2x-1)

alina1380 [7]

Answer:

Step-by-step explanation: -9<em>X3</em>+12x2-x-2

8 0

3 years ago

Read 2 more answers

Pls explain below :)

matrenka [14]

Answer:

$9 units^{2}$ aka 9 units

Step-by-step explanation:

Its pretty simple so what u do is count the sqaures then multiply them and ill do it for you

H=3

B=6

and the formula for a triangle is A= $\frac{b*h}{2}$ so its 3x6/2=9

The answer is 9

5 0

3 years ago

Read 2 more answers