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3 years ago

If 5x-3y=12 and 4x-5y=17 what is the value of y?

Mathematics

1 answer:

il63 [147K]3 years ago

3 0

Answer:

Step-by-step explanation:

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2[5+2(8-6)] I need help

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3 years ago

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Which point could not be part of a function that includes (3,-1),(4,2),(5,4),(-2,0),and ( 8,-3)

Triss [41]

(3,-1)

Use the V.L.T (Vertical Line Test) and plot the graph points, if you can draw a straight line through any points it cannot be a function.

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3 years ago

Mom’s muffin recipe uses 10 ounces of berries for 2 dozen muffins grandma’s muffin recipe uses 12 ounces of berries for 3 dozen

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3 years ago

The Tennessee Tourism Institute (TTI) plans to sample information center visitors entering the state to learn the fraction of vi

baherus [9]

Answer: 2185

Step-by-step explanation:

Let p be the proportion of visitors are campers.

Given : The Tennessee Tourism Institute (TTI) plans to sample information center visitors entering the state to learn the fraction of visitors who plan to camp in the state.

The prior proportion of visitors are campers : p=0.35

Allowable error : E= 2%= 0.02

We know that the z-value for 95% confidence = $z_c=1.96$

Then by Central Limit Theorem , the required sample size would be :

$n=p(1-p)(\dfrac{z_{c}}{E})^2$

$\Rightarrow\ n=0.35(1-0.35)(\dfrac{1.96}{0.02})^2\\\\ n= 0.35(0.65)(9604)$

Simply , we get

$n=2184.91\approx2185$ [Rounded to the next whole number.]

Hence, the smallest sample size to estimate the population proportion of campers =2185

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3 years ago

a clerk earns $7.50 an hr, plus a commission of 5% of sales. if she works a 40 hr week and sells $6300 worth of goods, what does

ehidna [41]

Givens

Work week = 40 hours

Paid 7.50 an hour.

Sells 6300 worth of goods.

Equation

Take home pay = Sales * 5% + 7.50 * number of hours.

Sub and Solve

Take home pay = 6300 * 5% + 7.50 * 40

Take home pay = 6300 * 5/100 + 7.50 * 40

Take home pay = 315 + 300

Take home pay = 615 dollars.

Answer 615 <<<<

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3 years ago

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