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3 years ago

5

In a certain chemical, the ratio of zinc to copper is 4 to 17. A jar of the chemical contains 714 grams of copper. How many gram

s of zinc does it contain?
It contains
grams of zinc

1 answer:

makkiz [27]3 years ago

3 0

Answer:

z= 168

Step-by-step explanation:

proportion zinc to copper = 4/17

4/17 = z/ 714

17 • z = 4 • 714

17 • z = 2856

z= 2856/17

z = 168

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50 min + 15 min = 1 hour, 5 min

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You have decided to purchase a car for $19,000. The credit union requires a 10% down payment and will finance the balance with a

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<h2>○=> <u>Correct option</u> :</h2>

$\color{plum} \bold{ \tt \: \bold{C. \$20,652.00}}$

<h3>○=> <u>Steps to derive correct option</u> :</h3>

Selling price of a car = $19,000

Percentage of sales tax in the city = 8.3%

Sales tax :

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$= \tt \frac{8.3 \times 19000}{1000}$

$= \tt \frac{1577000}{1000}$

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Thus, the sales tax on the car = $1577

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Total price of car :

= Cost price of car + Sales tax + cost of license/title

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$\color{plum} = \tt \$20652$

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2 years ago

For the pair of supply-and-demand equations, where x represents the quantity demanded in units of 1000 and p is the unit price i

Liono4ka [1.6K]

Answer:

7 and 6 respectively

Step-by-step explanation:

Firstly, we have to solve the equations simultaneously.

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3x - 11p = -45

Multiply equation I by 3 and ii by 2

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Subtract the second from first to yield:

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3 years ago

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Answer:

200 students must agree to attend in order for the school to have the festival.

Step-by-step explanation:

200 is 40% of 500. We can also use fractions to figure this out.

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For 100 to become 500 it must be multiplied by 5. And whatever we do to the denominator we have to do to the numerator. So we multiply 40 × 5 = <em>x</em>

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2 years ago

The length of the rectangle is 5/6 of inches and the width of the rectangle is 2/15 of inches. What is the area of the rectangle

Inga [223]

Answer:

W = X in.

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Step-by-step explanation:

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