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3 years ago

6

Riley goes to a store an buys an item that costs x dollars. She has a coupon for 10% off, and then a 8% tax is added to the disc

ounted price. Write an expression in terms of x that represents the total amount that Riley paid at the register.

2 answers:

Lapatulllka [165]3 years ago

8 0

(Y - 10%) + 8%= X.....................

Nana76 [90]3 years ago

5 0

Is that hit Artist and rapper dababy?????

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Find the solutions of the quadratic equation 14x^2+9x+10=014x

Vesnalui [34]

Answer:

Option B. $x=-\frac{9}{28}(+/-)\frac{\sqrt{479}}{28}i$

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$14x^{2}+9x+10=0$

so

$a=14\\b=9\\c=10$

substitute in the formula

$x=\frac{-9(+/-)\sqrt{9^{2}-4(14)(10)}} {2(14)}$

$x=\frac{-9(+/-)\sqrt{-479}} {28}$

Remember that

$i=\sqrt{-1}$

substitute

$x=\frac{-9(+/-)\sqrt{479}i} {28}$

$x=-\frac{9}{28}(+/-)\frac{\sqrt{479}}{28}i$

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3 years ago

The density of a certain material is such that it weighs 4 kilograms per cup of volume. Express this density in pounds per liter

777dan777 [17]

Answer: The answer is 8.8 pounds per litre. I just helped you, what’s your name and how are you? Mines is very good. :)

Step-by-step explanation:

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3 years ago

Triangle BAC was rotated 90° clockwise and dilated at a scale factor of 2 from the origin to create triangle XYZ. Based on these

ololo11 [35]

Answer:b=x

Step-by-step explanation:

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3 years ago

If you're currently making $6.75 per hour and you're offered a new job that pays $7.47 per hour, how much more would you make pe

Paha777 [63]

$7.47-$6.75
=$0.72 ??

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4 years ago

A farmer raises cows and chickens. The farmer has a total of 25 animals. One day he counts the legs of all of his animals and co

KengaRu [80]

Answer:

Step-by-step explanation:

x + y = 25 ...........................(1)

{4x + 2y =64} / 2 divide the equation by 2

2x + y = 32 ........................(3)

Step Two

subtract (1) from (3)

2x + y = 32

x + y = 25

x = 7

Therefore from equation 1 we get x + y = 25

but x = 7

7 + y = 25 Subtract 7 from both sides.

y = 25 - 7

y = 18

Check

4*x + 2*y = 64

4*7 + 2*18 =? 64

28 + 36 = ? 64

64 = 64

The checks out to be the right answer.

6 0

3 years ago