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3 years ago

Brainliest to correct answer help

Mathematics

2 answers:

shutvik [7]3 years ago

8 0

Answer:

Step-by-step explanation:

its c trust i am a man in my moms bacement

Vladimir [108]3 years ago

7 0

<h2>Answer:</h2>

[B] y = 1,000x has a proportional relationship with a constant of proportionality of 1,000.

"<u>An equation has a proportional relationship if it can be written in the form y = kx where k is the constant of proportionality</u>."

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Mr. Shows can read 8 pages in one hour. How many days would it take him to finish a book if it's 216 pages?

iragen [17]

Answer:

27 hours

Step-by-step explanation:

216/8=27

6 0

3 years ago

Read 2 more answers

Any help would be appreciated ❤ ❤ Thank you

Paladinen [302]

The solid shape is a cone and a half sphere. So the equation would be (cone volume) + (1/2 sphere volume):
$cone = \frac{1}{3} \pi {r}^{2} h \\ sphere = \frac{4}{3} \pi {r}^{3} \\ object = ( \frac{1}{3} \pi {r}^{2} h) + \frac{1}{2} ( \frac{4}{3} \pi {r}^{3} )$
If the volume of the cone is 270pi and the height of the cone is 10, then:
$270\pi = \frac{1}{3} \pi {r}^{2} (10) \\ 27 = \frac{1}{3} {r}^{2} \\ 80 = {r}^{2} \\ r = 9$
The radius of the object is 9 cm. Therefore, we can plug into the formula for the total volume:
$object = 270\pi + \frac{1}{2} ( \frac{4}{3} \pi {(9)}^{3} ) \\ = 270\pi + \frac{2}{3} (729\pi) \\ = 270\pi \: + 243\pi \\ = 513\pi$
The total volume is 513 pi cm^3

7 0

4 years ago

The shipping cost for order at an online store is 1/10 the cost of the items you order. What is an expression for the total cost

Katen [24]

Answer:

B. $79 + 0.1($79)

Step-by-step explanation:

Given that;

the shipping cost for an order = 1/10 multiply by the cost of the items bought;

i.e. $\dfrac{1}{10}\times x$

where

x = cost of items ordered for.

This implies that:

$\implies$ x + 0.1x

The objective is to determine the expression for the total cost of an order which is $79

x = 79

Then, the total cost of an order is

$79 + 0.1($79)

4 0

3 years ago

Michelle ordered 200 t shirts to sell at the school carnival. She paid $2.80 per shirt, plus 5% of the total order for shipping.

kap26 [50]

Answer:

12.75 dollars

Step-by-step explanation:

5% = 2.94$

150% = 7$

2.80 + 5% + 150% = 12.75 for each t-shirt she sale

5 0

4 years ago

PLSSSSS HELP!!!!!!!!!

Anna11 [10]

Answer:

x=30º

∠CAB=60°

∠ACB=80°

Step-by-step explanation:

Because the angles of every triangle add up to 180º, we know that:

$2x+20+2x=180-40\\ 4x=180-40-20\\ 4x=180-60\\ 4x=120\\ x=\frac{120}{4}$

x=30º

Plug that in for x on both angles, and you will get

∠CAB=60°

∠ACB=80°

6 0

3 years ago