MATHEMATICS HIGH SCHOOL

An item is priced at $13.37. If the sales tax is 4%, what does the item cost including sales tax?A. $13.90
B. $0.53
C. $18.72
D. $27.27

Answers

Answer 1
Answer: 4% = 0.04

$13.37x0.04= $0.53

13.37=0.53= $13.90

the answer is A.

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A firecracker shoots up from a hill 140 feet high, with an initial speed of 100 feet per second. Using the formula H(t) = −16t^2 + vt + s, approximately how long will it take the firecracker to hit the ground?Five seconds Seven seconds Nine seconds 11 seconds

If 2x/5y=6,what is the value of y, in terms of x ? 2. 11/4-a=3 , What is the value of a in the equation ?

Answers

(2x)/(5y) = 6

2x = 6 * 5y

2x = 30y

(2x)/(30) = y

y = (x)/(15)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

(11)/(4) - a = 3

-a = 3 - (11)/(4)

a = (11)/(4) - 3

a = (11)/(4) - (12)/(4)

a = - (1)/(4)

Express 0.59 as a fraction....

Answers

.59 as a fraction can be written as 59/100.
(I think of .59 as meaning 59 percent)

Answer:

59/100

Step-by-step explanation:

just put any number as a whole number over a 100 and reduce if needed to.

Which expression is equivalent to 2x2 – 2x + 7?

Answers

4-2x+7 maybe
Or try making the expression shorter like I did
maybe you can simplify the current equation. leaving you with 4x - 5

how would I figure out the answer to number 13? because every time I redo it I get a different answer.

Answers

It's 1 =)))))))))))))) I think it's easy :3

Heres a math problem. Help me out people. Jill has 3 crayons. Jeff has 5 more crayons than Jill. How many crayons do they have? Write a number sentence to solve.

Answers

jill has 3 crayon

jeff has 5 more crayons than jill =5+3=8

they have eleven crayons .

(5,?) is on the line below. Find the other half of the coordinate.
y = 2/3x + 7

Answers

We need to plug 5 in place of x into the equation of the line and find the y-value.

y = (2/3)x + 7

y = (2/3)5 + 7

y = 10/3 + 7

y = 10/3 + 21/3

y = 31/3

y = 10 1/3

The point is (5, 10 1/3) OR (5, 31/3).
(x,y) = (5, ?), so x = 5. Substitute 5 into the function for x to find the value of y when x = 5. y = 2/3 (5) + 7 = (2 x 5) / 3 + 7 = 10/3 + 7 = 10/3 + 21/3 = 31/3, which equals 10 1/3 or 10.3 repeating.
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