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miskamm [114]
3 years ago
6

A city with a population of 300000 is growing at a rate of 2% per year. What will it be in 20 years.

Mathematics
1 answer:
insens350 [35]3 years ago
5 0
Is over of = percent over 100
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The work of a student to solve the equation 3(3x − 4) = 8 + 2x + 5 is shown below: Step 1. 3(3x − 4) = 8 + 2x + 5 Step 2. 6x − 7
Mamont248 [21]

Answer:

  (a)  Step 2. 9x -12 = 13 +2x

Step-by-step explanation:

The distributive property says a factor outside parentheses multiplies each term inside parentheses. It is an error to do addition of the factor, or to miss multiplying a term.

In Step 2 of this "solution", the factor of 3 is erroneously <em>added</em> to each coefficent inside parentheses. It should be <em>multiplied</em>.

Correct Step 2: 9x -12 = 13 +2x

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The rest of the solution should be ...

  Step 3: 9x -2x = 13 +12

  Step 4: 7x = 25

  Step 5: x = 25/7

___

<em>Check</em>

  3(3(25/7) -4) = 8 + 2(25/7) +5

  3((75 -28)/7) = 13 +50/7

  141/7 = 141/7 . . . . . answer checks OK

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2 years ago
A scientist records a jackrabbit<br> traveling 140 m in 7 s.
nydimaria [60]

Answer:

20 m/s, if that's what your asking.

Step-by-step explanation:

7 0
2 years ago
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The slope of a line is2/3 . What is the slope of a line that is perpendicular to this line? A-3/2 B-2/3 C2/3 D3/2
slamgirl [31]

Answer:

i believe it is C

Step-by-step explanation:

4 0
3 years ago
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I am very confused pls help|w+5|&gt;5
SIZIF [17.4K]

Answer:

on what do you need help in

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3 years ago
Somebody please help me with this​
satela [25.4K]

Answer:

15/56

Step-by-step explanation:

5 people have a license

3 people don't

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We can divide the problem into two sections, the first being the probability of the first person having a license, and the second section is the probability that the second person doesn't have a license.

P1 = Probability of the first person having a license, there are 5 out of 8 person having a license, thus P1 = 5/8.

P2 = Probability of the second person having a license. There are 3 people not having a license, out of 8-1 = 7 persons available, since one is taken already from the first choice, therefore P2 = 3/7.

P1 and P2 are dependent events, thus P(1,2) = P1 * P2.

P(1,2) = P1 * P1 = 5/8 * 3/7 = 15/56

7 0
2 years ago
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