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gtnhenbr [62]
3 years ago
6

What is the answer to 2(x+4)-3

Mathematics
2 answers:
Pepsi [2]3 years ago
5 0

Answer:

2x+5

Step-by-step explanation:

If by answer you mean the simplified version, then the first thing you have to do is distribute the 2 among the (x+4).

2(x + 4) - 3 = (2x + 8) - 3

simplify

                  = 2x + 5

The answer is 2x+5.

gizmo_the_mogwai [7]3 years ago
4 0
2x+8-3
8-3=5
5/2= 2.5
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Write the pair of fractions as a pair of fractions with a common denominator
Dmitriy789 [7]

I'll do the first two problems to get you started

Problem 1

1/2 = 3/6

1/3 = 2/6

For the first fraction, I multiplied top and bottom by 3. Note how 3 is the denominator of the second fraction.

For the second fraction, I multiplied top and bottom by 2. Note how 2 is the denominator of the first fraction.

===============================================

Problem 2

1/2 = 5/10

3/5 = 6/10

Like with problem 1, I multiplied top and bottom of the first fraction by the value 5 which is the denominator of the second fraction. Likewise, I did the same for the second fraction using the first denominator. The steps are essentially the same, but the numbers are different.

Problem 3 will be handled the same way. I'll let you try it out.

4 0
3 years ago
A recent national survey found that high school students watched an average (mean) of 6.8 movies per month with a population sta
Margaret [11]

Answer:

Step-by-step explanation:

Given that x = no of movies high school students watched is N(6.8, 1.8)

Sample size = 36 and hence std error = 1.8/6 = 0.3

H_0: x bar = 6.8\\H_a: x bar < 6.8\\

(two tailed test)

Mean difference = 6.2-6.8 = -0.6

Test statistic z = -0.6/0.3= -2

p value = 0.02275

Since p <0.05 we reject H0.

There is evidence to show that college students watch fewer movies a month than high school students

7 0
3 years ago
Find the new amount. explain <br><br><br>200 books; 75% decrease <br><br>160 bananas; 20% decrease
prohojiy [21]

Answer:

75% of 200 = 50; 20% of 160 = 128

Step-by-step explanation:

200 (0.75) = 150

200 - 150 = 50

160 (0.20) = 32

160 - 32 = 128

8 0
3 years ago
What is the range of the function y = x ^2?
VikaD [51]

Range: [0, ∞), {y|0 ≤ y}

3 0
3 years ago
E
xz_007 [3.2K]

Answer:

1) n = 84

2) n = 78

3) n = 24

4) n = 16

5) n = 35

Step-by-step explanation:

To solve each proportion, we apply cross multiplication.

Question 1:

\frac{5}{12} = \frac{35}{n}

5n = 35*12

Simplifying both sides by 5

n = 7*12 = 84

Question 2:

\frac{n}{52} = \frac{180}{120}

120n = 52*180

Simplifying both sides by 20

6n = 52*9

Simplifying by 3

2n = 52*3

Simplifying by 2

n = 26*3 = 78

Question 3:

\frac{18}{n} = \frac{21}{28}

21n = 18*28

Simplifying both sides by 7

3n = 18*4

Simplifying both sides by 3

n = 6*4 = 24

Question 4:

\frac{n}{4} = \frac{24}{6}

\frac{n}{4} = 4

n = 16

Question 5:

\frac{10}{16} = \frac{n}{56}

16n = 56*10

Simplifying by 2, both sides

8n = 56*5

Simplifying by 8, both sides

n = 7*5 = 35

4 0
3 years ago
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