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2 years ago

If the customer's order came to $6.22 and he gave you $20.25 what is his change?

Mathematics

1 answer:

Nataly_w [17]2 years ago

6 0

Subtract 6.22 from 20.25

20.25
06.22
---------
14.03

Your change is $14.03

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lung cancer kills about 3,000 people per day. if 90% of the deaths from luung cancer are attributted to smoking, what is the rat

defon

Answer:

2700!

Step-by-step explanation:

hope that helped <3

5 0

2 years ago

Solve for x<br> 7x + 8 = 29 (simplified please) ill give brainliest :)

mixer [17]

Answer: X=3

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Solve. 2 (x - 1/2) = 3 (5 - 2x) show the steps in your solution.

viktelen [127]

Question 1.). Solve:

2 (x - 1 / 2) = 3 (5 - 2x)

Simplify both sides of equation:

2( x - 1 / 2 ) = 3(5 - 2x )

(2) (x) + (2) ( -1 / 2 ) = (3) (5) + (3) ( -2x )

Distribute:

2x + - 1 = 15 + -6x

2x - 1 = -6x + 15

Add 6x to both sides:

2x - 1 + 6x = -6x + 15 + 6x

8x - 1 = 15

Add 1 to both sides:

8x - 1 + 1 = 15 + 1

8x = 16

Divide both sides by 8:

8x / 8 = 16 / 8

Answer: 2 (x - 1 / 2) = 3 (5 - 2x) ==========> x = 2

Question 2.).

M =======> Amount Malik need

Solution: =========> m ≥ 5

Inequality ========> 8 + 7 + 10 + m ≥ 30

25 + m ≥ 30

Interpretation ==========> Malik needs at least, $5 .00 to get to, $30.00 or more.

Is the solution reasonable ===========> YES

Hope that helps!!!!! : )

4 0

3 years ago

Read 2 more answers

Find the Value of X Please

Yanka [14]

Answer:

x=6

Step-by-step explanation:

3x-5=2x+1

x-5=1

x=6

6 0

3 years ago

The maximum value of the function: f(x)= -5 x ^2 +30x-200 is?

VARVARA [1.3K]

Answer:

$\displaystyle - 155$

Step-by-step explanation:

we are given a quadratic function

$\displaystyle f(x) = - 5 {x}^{2} + 30x - 200$

we want to figure out the minimum value of the function

to do so we need to figure out the minimum value of x in the case we can consider the following formula:

$\displaystyle x _{ \rm min} = \frac{ - b}{2a}$

the given function is in the standard form i.e

$\displaystyle f(x) = a {x}^{2} + bx + c$

so we acquire:

b=30
a=-5

thus substitute:

$\displaystyle x _{ \rm min} = \frac{ - 30}{2. - 5}$

simplify multiplication:

$\displaystyle x _{ \rm min} = \frac{ - 30}{ - 10}$

simply division:

$\displaystyle x _{ \rm min} = 3$

plug in the value of minimum x to the given function:

$\displaystyle f (3)= - 5 {(3)}^{2} + 30.3 - 200$

simplify square:

$\displaystyle f (3)= - 5 {(9)}^{} + 30.3 - 200$

simplify multiplication:

$\displaystyle f (3)= - 45 + 90- 200$

simplify:

$\displaystyle f (3)= - 155$

hence,

the minimum value of the function is -155

5 0

2 years ago