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White raven [17]

3 years ago

8

HELP please !!!!! PLZ

1 answer:

lesantik [10]3 years ago

6 0

1) y=7/10x
2) Slope is 1/4
3) Slope is -1

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Brine is a solution of salt and water. If a tub contains 50 gallons of a 5% solution of brine, how much water must evaporate to

vova2212 [387]

<span>Let x = amt of water evaporated :.05(50) = .08(50-x) 2.5 = 4 - .08x .08x = 4 - 2.5 .08x = 1.5 x = 18.75 lb of water evaporated : ; Check; amt of salt remains the same, only the percentage is different, right? .05(50) = .08(50-18.75) .05(50) = .08(31.25) 2.5 = 2.5</span>

7 0

3 years ago

-1/2x+2=-x+7 i need to know

ludmilkaskok [199]

$= \frac{ - 1}{ \: \: 2} x + 2 = x + 7$

$= \frac{ - 1}{ \: \: \: 2} x + 2 - x = 7$

$= \frac{ - 3}{ \: \: \: 2}x + 2 = 7$

$= \frac{ - 3}{ \: \ \: 2}x = 7 - 2$

$= \frac{ - 3}{ \: \: \: 2} x = 5$

$x = 5 \: \div \frac{ - 3}{ \: \: \: 2}$

$x = 5 \times \frac{ \: \: \: 2}{ - 3}$

$x = \frac{ - 10}{ \: \: \: 3}$

$∴ \frac{ - 1}{ \: \: \: 2} \times \frac{ - 10}{ \: \: \: 3} = \frac{ - 10}{ \: \: \: 3} + 7$

6 0

3 years ago

Jerry is painting a fence made of 4 wooden planks. He has 4 different colours to choose from. He randomly chooses a colour for e

kap26 [50]

1/4 because each color on it’s owned factor

4 0

2 years ago

If p = 7, then what is the value of 8x p- 6?

Alik [6]

Answer:

50

Step-by-step explanation:

8*7-6

56-6

50

plzzz mark brainliest

5 0

2 years ago

bogdanovich [222]

2 ten dollar bills, 1 one dollar bill.

20*8= 160
186- 160 = 26
26 - 5 = 21

4 0

3 years ago