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densk [106]
3 years ago
13

Given: 3(x-4)=2x+7 Prove: x=19 PROOF: StatementsReasons

Mathematics
1 answer:
Musya8 [376]3 years ago
4 0
Hey !

3(x - 4) = 2x + 7 \\ \\ 3x - 12 = 2x + 7 \\ \\ 3x - 2x = 7 + 12 \\ \\ x = 19 \: \: \: \: \: \: \: Ans.

Hope it helps you :)
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Brad wants to open a new savings account. He finds one that returns 3% on his investment each year. Use the variable to write a
Jet001 [13]
Return rate, r = 3% = 0.03
x = initial investment
b = final balance

After 1 year, the balance i
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b = x + r*x = (1 + r)*x

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3 0
3 years ago
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Solve the inequality 5y+4 ≤ 22-y and graph the solution set on a number line. Please explain how to do it!
gtnhenbr [62]

Answer:

y≤3

Step-by-step explanation:

5y+4≤22−y

<em>Step 1: Simplify both sides of the inequality.</em>

5y+4≤−y+22

<em>Step 2: Add y to both sides.</em>

5y+4+y≤−y+22+y

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<em>Step 3: Subtract 4 from both sides.</em>

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<em>Step 4: Divide both sides by 6.</em>

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4 0
2 years ago
Read 2 more answers
Select Parameter or Statistic to classify each statement.
Annette [7]

Answer:

1) Statistic

2) Parameter

3) Statistic

4) Parameter.

Step-by-step explanation:

Parameter: is a number that describes the whole population.

Statistic: is a number that describes a sample.

The difference is:

50% of the cats are nice (parameter, because talks about all the cats)

out of 100 cats surveyed, 39 are nice (statistic, because talks about a sample of 100 cats)

Then:

1) 85% of those surveyed were in favor of bike lanes.

This only refers to the surveyed people, so this only refers to a sample (and not the population that this sample represents) then this is a statistic statement.

2) Each member of the soccer team has an average of 2 jerseys.

In this case, we are talking about the whole population (the soccer team) then this is a parameter

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Here the information is about the sample (only 100 swim teams). So here the correct option is statistic.

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7 0
3 years ago
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kozerog [31]

Answer:

1

Step-by-step explanation:

Add 4+1=5 then do 5÷5=1

7 0
3 years ago
What is the exact area of a circle with a diameter of 18 feet
marin [14]
A = π r^2
A = 9^2 <span>π
</span>A = 81<span>π 

if using </span>π = 3.14 then

A = 3.14 x 81 = 254.47 ft^2

answer: 81π ft^2 or 254.47 ft^2

hope that helps
6 0
3 years ago
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