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3 years ago

This needs to be dont by tomorrow HELPPPPP

Mathematics

1 answer:

Likurg_2 [28]3 years ago

6 0

Answer:

Step-by-step explanation:

1. 2a + 3a + 3 = 8

5a + 3 = 8

5a = 5

a = 1

2. 3a - 2a - 4 = 0

a - 4 = 0

a = 4

3. 4 + 3a + 6 = 16

3a + 10 = 16

3a = 6

a = 2

4. 12a - 6a + 6 = 24

6a + 6 = 24

6a = 18

a = 3

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PLEASE HELP K12

BartSMP [9]

Answer:

Step-by-step explanation:

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

We have the points (12, 6) and (12, -9). Substitute:

$d=\sqrt{(12-12)^2+(-9-6)^2}=\sqrt{0^2+(-15)^2}=\sqrt{225}=15$

7 0

3 years ago

Read 2 more answers

A company's sales in Seattle were $330,000 in 2012, while their sales in Portland were $235,000 for the same year. Complete the

barxatty [35]

Answer:

A) Seattle's sales were 40.42% larger than Portland's.

B) Portland sales were 28.79% smaller than Seattle's.

C) Portland sales were 71.21% of Seattle's.

Step-by-step explanation:

Since a company's sales in Seattle were $ 330,000 in 2012, while their sales in Portland were $ 235,000 for the same year, the following calculations must be performed to complete the sentences:

235,000 = 100

330,000 = X

330,000 x 100 / 235,000 = X

33,000,000 / 235,000 = X

140.42 = X

Seattle's sales were 40.42% larger than Portland's.

330,000 = 100

235,000 = X

235,000 x 100 / 330,000 = X

23,500,000 / 330,000 = X

71.21 = X

100 - 71.21 = 28.79

Portland sales were 28.79% smaller than Seattle's.

330,000 = 100

235,000 = X

235,000 x 100 / 330,000 = X

23,500,000 / 330,000 = X

71.21 = X

Portland sales were 71.21% of Seattle's.

5 0

3 years ago

What is -10=10(k-9) plz??

Sever21 [200]

-10=10(k-9)
so,
-10=10k-90
that is just expanding the brackets by multiplying to k and-9
then.
-10=10k-90
move the-90 over by adding 90
so, 80=10k
k =80/10
k=8

4 0

3 years ago

Really need the answers

yan [13]

Answer:

Of what???? what question?

6 0

3 years ago

Finding the missing angles 35° and 145°

padilas [110]

Answer:

Step-by-step explanation: