3 years ago

Solving equations with one variable

Mathematics

1 answer:

kupik [55]3 years ago

5 0

Answer:

1) b= -20

Step-by-step explanation:

You bring the variable you want to find to one side by either bringing over the second term to the other side of the equation and change its sign or if it's a fraction you multiply both sides to remove the denominator and then solve

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What is the value of x in the equation below? 3x - 15 = 60

Bogdan [553]

Answer:

3x=60+15

x=75/3

x=25

Thus the answer is 25

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The population of algae in an experiment has been increasing by 5% each day. If there were 5p algae at the beginning of the expe

Ostrovityanka [42]

Answer:

Number of algae in 7 days = 70.355

Step-by-step explanation:

Given:

Algae in beginning = 50

Rate of increasing = 5% per day = 0.05

Number of days = 7 days

Find:

Number of algae in 7 days.

Computation:

$Number\ of\ algae\ in\ 7\ days = Algae\ in\ beginning(1+Rate\ of\ increasing)^{Number\ of\ days}\\\\Number\ of\ algae\ in\ 7\ days = 50(1+0.05)^7\\\\Number\ of\ algae\ in\ 7\ days = 70.355$

Number of algae in 7 days = 70.355

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3 years ago

4(x + 1) = 28<br> Multi step

xenn [34]

Answer:

x = 6

Step-by-step explanation:

Pardon the bad handwriting

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3 years ago

Pls help this is for math ill give a brainly

olasank [31]

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Step-by-step explanation:

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3 years ago

If Chloe is 22 her sister Bethany is 23 but there mum is 21 how are they her children

gayaneshka [121]

Answer:

Step-by-step explanation:

I think it three sometimes it's a trick question

so its not number one or 2 because how are they her children so the answer is 3

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