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3 years ago

Which number has an 8 that is 1 tenth the value of the 8 in 78

Mathematics

1 answer:

yKpoI14uk [10]3 years ago

8 0

9.75 i think I’m not really sure do you have any options?

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David is buying a cheese wheel priced at 650 before tax. The store charges 8%, percent sales tax.

emmasim [6.3K]

Answer:

....the answer is 682.5

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2 years ago

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Somebody please help me with this

Sedaia [141]

Answer:

E and F= 54 Degrees D is 90 degrees

Step-by-step explanation:

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2 years ago

Which ordered pair (a, b) is a solution to the given system of linear equations? -2a+3b=14

Stels [109]

Answer:

The solution of the system is the ordered pair (-13,-4)

Step-by-step explanation:

we have

$-2a+3b=14$ -----> equation A

$a-4b=3$ ----> equation B

Solve the system by elimination

Multiply by 2 both sides equation B

$2(a-4b)=2(3)$

$2a-8b=6$ ----> equation C

Adds equation A and equation C

$-2a+3b=14\\2a-8b=6\\-------\\3b-8b=14+6\\-5b=20\\b=-4$

<em>Find the value of a</em>

substitute the value of b in any equation (i take equation B)

$a-4(-4)=3$

$a+16=3$

$a=-13$

therefore

The solution of the system is the ordered pair (-13,-4)

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3 years ago

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For every quad, there are 4 wheels. Complete the

PIT_PIT [208]

The one next to 3 is 12, the one next to 7 is 28, the one next to 12 is 48. All you have to do is multiply the quads by four and you get the number of wheels.

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2 years ago

I need to show how to find these solutions 1/4 and 3/4 by completing the square!

Arlecino [84]

Answer:

See explanation, and ask for more details if unclear!

Step-by-step explanation:

The perfect square of this equation is $x^2-x+\frac{1}{4}$ , since the square would be $(x-\frac{1}{2})^2$ . 1/4=4/16, meaning that you can set up the equation in the following way: