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3 years ago

Sterling silver is an alloy of silver that is 92.5% pure silver. If x grams

Mathematics

2 answers:

bonufazy [111]3 years ago

6 0

Answer:

The correct answer is actually B

nlexa [21]3 years ago

5 0

Answer:

D. 0.925x + 0.88y = 0.91(x + y)

Step-by-step explanation:

The important point to remember is that the total mass of pure silver is the same on each side of the equation.

0.925x = mass of pure silver in first alloy

0.88 y = mass of pure silver in second alloy

The final alloy has a mass of (x + y) g and is 91 % pure silver, so

0.925x + 0.88y = 0.91(x + y)

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otez555 [7]

Answer:

559 crates

Step-by-step explanation:

you have to multiply the # of pallets by the # of crates.

43 x 13 = 559

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3 years ago

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3 years ago

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Shade in the grid to represent the ratio. Then find the missing number.

horrorfan [7]

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4 years ago

If, in 7 years, Susan will be 2 times as old as she was 3 years ago, what is Susan’s present age?

pochemuha

Answer:

Step-by-step explanation:

Set Susan's present age as x, her age from 3 years ago as x-3, and her age in three years as 2(x-3)

Since her age in seven years = 2 times as old as she way 3 years ago, set up the equation:

x+7 = 2(x-3)

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3 0

3 years ago

Greg's grocery store placed an order for yogurt. The store ordered 1,020 cartons of yogurt. Each carton ordered was blueberry, P

marin [14]

Answer:

544

Step-by-step explanation:

The ratios of cartons are ...

B : P = 2 : 1

S : L = 2 : 1

L : B = 2 : 1

Combining these into a single set of ratios, we have ...

S : L : B : P = 8 : 4 : 2 : 1

Then the proportion of the order that is strawberry is ...

8/(8+4+2+1) = 8/15

and the number of strawberry cartons is ...

(8/15)·1020 = 544

The store ordered 544 cartons of strawberry yogurt.

4 0

3 years ago