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sesenic [268]
1 year ago
14

Solve: 2(1 - 5k) = 2k + 38

Mathematics
1 answer:
Nonamiya [84]1 year ago
5 0

k=-3

1) Let's solve for k, the following expression:

2(1 - 5k) = 2k + 38​ <em>Distribute the factor 2</em>

2 -10k = 2k +38 <em>Subtract 2 from both sides and 2k</em>

-10k -2k = 38 -2

-12k = 36 <em>Divide by -1</em>

12k=-36 <em>Divide both sides by 12</em>

k= -3

2) So k is equal to -3 in this equation.

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Evaluate the following expression. Enter your answer in simplest form.
lara [203]

Answer:

1.6

Step-by-step explanation:

1/   4/2+2^2

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8 0
3 years ago
At Pizza Pi, 48% of the pizzas made last week had extra cheese. If 12 pizzas had extra cheese, how many pizzas in all were made
Korvikt [17]

Answer:

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8 0
3 years ago
The mean of Tom’s scores on 5 tests was 77.4%. The scores on his first four tests were 88, 77, 70, and 72. What was Tom’s score
dimaraw [331]

Answer:

80.

Step-by-step explanation:

His total score for 5 tests = 5 * 77.4 = 387 .

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= 387 - (88 + 77 + 70 + 72)

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3 years ago
One hose can fill a goldfish pond in 36 ​minutes, and two hoses can fill the same pond in 20 minutes. Find how long it takes the
rjkz [21]

Answer:

45 minutes

Step-by-step explanation:

It is given that one hose can fill a goldfish pond in 36 minute

So the the first hose can fill goldfish pond \frac{1}{36} per minute

When both fill together then they fill in 20 minutes

So the the both  hose can fill goldfish pond \frac{1}{20} per minute

Let Goldfish pond filled by second hose  \frac{1}{x} per minute

so \frac{1}{36}+\frac{1}{x}=\frac{1}{20}

\frac{1}{x}=\frac{1}{20}-\frac{1}{36}

x=45 minutes

5 0
4 years ago
Read 2 more answers
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