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3 years ago

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A jeweler has 5 rings, each weighing 18 g, made of an alloy of 15% silver and 85% gold. She decides to melt down the rings and a

dd enough silver to reduce the gold content to 75%. How much silver should she add?

1 answer:

GaryK [48]3 years ago

7 0

Subtract number of %<span />

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Below an equation is modeled . What value of x makes this equation true?

Strike441 [17]

5x + 6 = 1
Subtract 6 from both sides.
5x = -5
Divide from both sides.
x = -1 (ANSWER)

hope this helps!!

5 0

3 years ago

PLEASE HELP ME!

schepotkina [342]

Answer:

76.8

Step-by-step explanation:

Using the proportion

$\frac{120}{100}$ → Percent is out of 100

$\frac{120}{100}$ = $\frac{n}{64}$ ( cross- multiply )

100n = 7680 ( divide both sides by 100 )

n = 76.8

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3 years ago

Use the formula v=u+at <br>calculate v when:<br>u=10, a=3, t=2.5

Ksenya-84 [330]

Answer:

<h2>17.5</h2>

Step-by-step explanation:

$v = 10 + 3 \times 2.5 \\ v = 10 + 7.5 \\ v = 17.5$

This is your answer :))

7 0

3 years ago

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Sorry i have another question what is the inequality of 8x−8≤−72.

vova2212 [387]

That answer is x≤−8

Inequality:

8x−8≤−72

Step number 1: You have to Add 8 to both sides.

8x−8+8≤−72+8

8x≤−64

Step number 2: You have to Divide both sides by 8.

8x /8 ≤ −64 / 8

Ur Answer:

x≤−8

Hope this helps :)

7 0

3 years ago

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What is the next term in the sequence

Nesterboy [21]

Answer:

-5/2

Step-by-step explanation:

The next term will be,

→ -2/4

→ (-2-3)/(4÷2)

→ -5/2

Hence, the solution is -5/2.

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2 years ago

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