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3 years ago

What is the solution for -10 < x - 9?

Mathematics

1 answer:

enyata [817]3 years ago

4 0

-10 < x - 9

-10+9 < x - 9+9

-1<x, or
x> - 1

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(10b-2)-3(3b+3)=-7 thank you plz hurry show steps

ryzh [129]

Answer:

$b=4$

Step-by-step explanation:

$10b-2-3(3b+3)=-7\\\Leftrightarrow 10b-9b-9=-5\\\Leftrightarrow b=4$

6 0

3 years ago

Breyana is buying a new dress. The dress is on sale for 20% off. Breyana will also have to pay 10% sales tax on the discounted p

Vinvika [58]

Answer:

Breyana paid 88% of the dress's original price.

Step-by-step explanation:

We are given the following in the question:

Let x be the original price of dress.

The dress is on sale for 20%.

Price of dress after discount =

$(x-0.20x)$

Breyana will also have to pay 10% sales tax on the discounted price of the dress.

Price of dress after discount =

$0.10(x-0.20x)$

Total cost of dress =

$(x-0.20x) + 0.10(x-0.20x)$

We have to calculate percentage of original price paid by Breyana

$\dfrac{(x-0.20x) + 0.10(x-0.20x)}{x}\times 100\%\\\\=\dfrac{0.80x+0.08x}{x}\times 100\%\\\\=\dfrac{0.88x}{x}\times 100\%\\\\=88\%$

Thus, Breyana paid 88% of the dress's original price.

7 0

3 years ago

Solve the system of equations by graphing or using a table 3x+ y= 5 x -y = 7

kobusy [5.1K]

Its supposed to be 3x+y=5 x-y=2

6 0

3 years ago

Read 2 more answers

Hi, I need help with another problem. (Solve for x)

NARA [144]

Answer:

x = 2

Step-by-step explanation:

x/(x+1) = (x+6) / (x+10)

the 10 comes from 9+1

Then cross multiply and solve for x

the terms cancel out just leaving behind a nice linear function.

5 0

3 years ago

Courtney bought a box of 16 bracelets for $32. She sold each bracelet for $5. What is Courtney's profit

Alja [10]

she made a $48 profit.

explaination :

since the bracelets were initially worth $2 each, and she sold them for $5, she made a $3 profit per bracelet. if you multiply 3 x 16 , you get $48.

5 0

3 years ago