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2 years ago

Which expression is equivalent to 9q^2 - 2/3 (3q - 7) + 5q^2?

Mathematics

1 answer:

nikitadnepr [17]2 years ago

3 0

Answer:

14q^2−2q+14/3

Step-by-step explanation:

9q^2 - 2/3 (3q - 7) + 5q^2

Use the distributive property to multiply -2/3 by 3q−7.

9q^2 - 2q + 14/3 + 5q^2

Combine 9q^2 and 5q^2 to get 14q^2

14q^2−2q+14/3

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Please help please please

monitta

Answer:

x=10

y=-2

(10,-2)

Step-by-step explanation:

If X=10, we can put 10 in for x in the equation.

30 + 5y = 20

Next, we need to solve to find y.

We will get y on its own so we subtract 30 from 20 to get

5y=-10

We then know that 5 goes into -10 -2 times.

y=-2

5 0

3 years ago

Pam bought a pair of shoes on sale for $22.40. If this was 20%. Off the original price, find the original price of the shoes

Rus_ich [418]

Answer:

26.88

Step-by-step explanation:

20%*22.40=4.48

22.40+4.48=26.88

3 0

2 years ago

PLEASE HELP!!!!!<br> will mark brainliest!!!!!

PSYCHO15rus [73]

Answer:

x y

4 7

5 -1

6 -9

5 0

2 years ago

Read 2 more answers

A triangle has side lengths of 10, 11, and 15. What type of triangle is it? Procedure: 102 ?? 112 + 152 100 ?? 121 + 225 100 &lt

stepladder [879]

<span> The triangle seems to be a scalene triangle because all three of its sides are different. </span>

3 0

3 years ago

PLSS HELP

Dmitry [639]

Answer:

$8,000

Step-by-step explanation:

Let the store earned $x in December.

Therefore,

Money spent to buy new inventory $=\frac{1}{4} x$

Remaining money $= x - \frac{1}{4} x =\frac{3}{4} x$

Money used to pay bills $=\frac{1}{2} \times \frac{3}{4} x=\frac{3}{8} x$

Money still left over = $3,000

Total money earned in December $= \frac{1}{4} x+ \frac{3}{8} x+3,000$

$\therefore x= \frac{1}{4} x+ \frac{3}{8} x+3,000$

$\therefore x= \frac{2}{8} x+ \frac{3}{8} x+3,000$

$\therefore x= \frac{5}{8} x+ 3,000$

$\therefore x- \frac{5}{8} x=3,000$

$\therefore \frac{8x-5x}{8} =3,000$

$\therefore \frac{3x}{8} =3,000$

$\therefore x =3,000\times \frac {8}{3}$

$\therefore x =1,000\times 8$

$\therefore x =\$8,000$

Thus, total money earned in December is $8,000.

3 0

3 years ago