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3 years ago

Lashonda's penny bank is

1 answer:

5 0

Loshonda’s bank can hold 480 pennies because when it was half full it was 240 and then you multiply 240 by 2 and you get 480. I don’t know if this is right. i’m sorry if it isn’t :(

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7f + g = 5, for f literal equations

DENIUS [597]

Answer:

i don't know what exactly your question is but i believe this is the answer if you are trying to find f. f= -1/7g+5/7

Step-by-step explanation:

7 0

3 years ago

A metallurgist has one alloy containing 34% copper another containing 48% copper. How many pounds of each alloy must he use to m

Zielflug [23.3K]

Answer:

<h2>36.14 pounds of 34% copper alloy and 9.86 pounds of 48% copper alloy</h2>

Step-by-step explanation:

First alloy contains 34% copper and the second alloy contains 48% alloy.

We wish to make 46 pounds of a third alloy containing 37% copper.

Let the weight of first alloy used be $x$ in pounds and the weight of second alloy used be $y$ in pounds.

Total weight = $46\text{ }pounds=x+y$ $-(i)$

Total weight of copper = $37\%\text{ of 46 pounds = }34\%\text{ of }x\text{ pounds + }48\%\text{ of }y\text{ pounds }$

$\dfrac{37\times 46}{100}=\dfrac{34x}{100}+\dfrac{48y}{100}\\\\ 34x+48y=1702$ $-(ii)$

Subtracting 34 times first equation from second equation,

$34x+48y-34x-34y=1702-34\times46\\14y=138\\y=9.857\text{ }pounds \\x=36.143\text{ }pounds$

∴ 36.14 pounds of first alloy and 9.86 pounds of second alloy were used.

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3 years ago

Find the first quartile (Q1) of the data set below.

Zarrin [17]

I think it would be 88

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3 years ago

Round 0.172 to the nearest hundredth.

aleksandr82 [10.1K]

It is <span>Round 0.172 to the nearest hundredth.</span>

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3 years ago

Read 2 more answers

I don’t know how to do this

zalisa [80]

Answer:

½÷3=0.17

if you're talking about the app, i don't get too

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2 years ago