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Jet001 [13]
3 years ago
6

Lenore lives in a state where sales tax is 10%. This means you can find the total cost of an item, including tax, by using the e

xpression c + 0.10c, where c is the pre-tax price of the item.
Use the expression to find the total cost of an item that has a pre-tax price of $84.00.
Mathematics
1 answer:
Aliun [14]3 years ago
4 0

Function is

  • f(c)=c+0.10c

Put 84.00$

\\ \tt\hookrightarrow 84.00+0.1(84.00)

\\ \tt\hookrightarrow 84.00+8.4

\\ \tt\hookrightarrow 92.4

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Multiple Choice Suppose y varies directly as x. if y = 5 when x=8, find y when x=64
Juliette [100K]

Answer:

Step-by-step explanation:

y∞x

then

y=kx (with k as constant)

y=5 when x=8

⇒Putting this in the first equation

⇒5=k×8

⇒k=5/8

Now

y=? when x=64

Putting x=64 in the first equation

y=kx

⇒y=(5/8)×64

We get

y=40

Hope u understand

6 0
4 years ago
PLZ HELP ASAP I'LL GIVE BRAINLY sketch the solution set to the system of inequalities shown below
earnstyle [38]

Answer:

hi! you can use desmos graphing calculator to help you graph these- just look it up and plug the equation in. its nice for future use as well.

Step-by-step explanation:

and no , (5,10) isn't a solution to the equation because it falls under x≥2 but not under y<x+3. Hope this helps !

6 0
3 years ago
PLZ HELP PLZ HELP WHATS THE ANSWER
avanturin [10]
For the first equation it should be 1 and 4 because 7(1)+6(4) would simplify to 7+24 which equals 31.

Then for the second equation, well... there’s multiple answers:

First would be 3 and -2 because 3(3)-10(-2) simplifies to 9+20=29.

Another one would be 23 and 4 because 3(23)-10(4) simplifies to 69-40=29.

Hopefully this helps :D
4 0
3 years ago
Find the volume of a cube with side lengths of fifteen feet
lidiya [134]

Answer:

3375 feet cube

Step-by-step explanation:

Given :

side of cube = 15 feet

Formula used :

Volume of cube , v = a^3

Solution :

Volume of cube

= a^3

= 15^3

= 15*15*15

= 3375 feet cube

8 0
3 years ago
— 12 – 6р – (-2)<br> help pls
baherus [9]

Answer: -6P - 10

Step-by-step explanation:

STEP 1.   -12 - 6P + 2

STEP 2.   -6P + ( -12 + 2 )

STEP 3.   -6P - 10

8 0
3 years ago
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