2 years ago

Susan swims a race in 29 7/10 seconds.patty swims at the race in 33 1/5 seconds. How much faster was Susan than patty

Mathematics

1 answer:

Lesechka [4]2 years ago

5 0

Answer: 3.5

Step-by-step explanation: 33.20-29.7

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A jeweler wants to combine a 60% gold alloy with a 20% gold alloy to make 1000 grams of 50% gold alloy. How many grams of 60% al

kramer

Answer:

750 grams of 60% alloy

Step-by-step explanation:

Define x = amount of 60% alloy and y = amount of 20% alloy

Equating the amounts of gold:

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Answer: 750 grams of 60% alloy

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1 year ago

What is a to the -6th power using a positive exponent

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$a^{-6}=\left(\dfrac{1}{a}\right)^6=\dfrac{1}{a^6}$

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2 years ago

(Z-6) divided by 3 for z= 15.9

scoray [572]

Simply plug in $\sf{z=15.9}$ into $\sf{\frac{z-6}{3}}$

So:

$\sf{\frac{15.9-6}{3}}$

Simplify that more:

$\sf{\frac{9.9}{3}}$

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3 years ago

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