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natka813 [3]
3 years ago
12

What is the answer 3x-4=2x+1

Mathematics
2 answers:
Vinil7 [7]3 years ago
6 0

Answer:

Let's solve your equation step-by-step.

3x−4=2x+1

Step 1: Subtract 2x from both sides.

3x−4−2x=2x+1−2x

x−4=1

Step 2: Add 4 to both sides.

x−4+4=1+4

x=5

Answer:

x=5

Step-by-step explanation:

ss7ja [257]3 years ago
3 0
Hope this helps :) bestayyyyyy

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A survey of 340 randomly chosen US adults found that 60% of the 150 men and 50% of the 190 women ran a five-kilometer race durin
Andrej [43]

Answer:

The p-value is less than the significance level, so we will reject the null hypothesis, and conclude that at 5% significance level, the proportion for women that ran 5 km is more than the proportion of male that ran the 5 km. Thus, women are more likely to run the 5 km race.

Step-by-step explanation:

We are given;

Number of males selected; n₁ = 150

Number of females selected; n₂ = 190

Proportion of the males; p₁ = 0.6

Proportion of females; p₂ = 0.5

Let's define the hypotheses;

Null hypothesis; H0: p₁ ≥ p₂

Alternative hypothesis; Ha: p₁ < p₂

Now, the z score formula for this is;

z = (p₁ - p₂)/√(p^(1 - p^))(1/n₁ + 1/n₂))

Where;

p^ = (p₁ + p₂)/2

p^ = (0.6 + 0.5)/2

p^ = 0.55

Thus;

z = (0.6 - 0.5)/√(0.55(1 - 0.55))((1/150) + (1/190))

z = 0.1/0.0543

z = 1.84

From online p-value from z-score calculator attached, using z = 1.84, significance level = 0.05, one tailed hypothesis, we have;

P-value = 0.033

The p-value is less than the significance level, so we will reject the null hypothesis, and conclude that at 5% significance level, the proportion for women that ran 5 km is more than the proportion of male that ran the 5 km. Thus, women are more likely to run the 5 km race.

Although if we check at 0.01 significance level, we will not have the same answer as the p-value will be greater.

3 0
3 years ago
{y=-x+1<br> {y=4x-14<br> please help me <br> my paper is due today
Temka [501]

- x + 1 = 4x - 14 \\  - x - 4x =  - 14 - 1 \\  - 5x =  - 15 \\ x = 3

Substitute x = 3 in any given equations. I will do in y = - x + 1

y =  - x + 1 \\ y =  - 3 + 1 \\ y =  - 2

Therefore the answer is (3,-2)

7 0
3 years ago
The bill at a restaurant came to $136.40 the patrons decide to leave a 15% tip what was the total tip including the bill
iogann1982 [59]
Answer: $156.86

Step by Step:

136.40 x .15 = 20.46

136.40 + 20.46 = 156.86
3 0
3 years ago
A radio transmission tower is 170 feet tall. How long should a guy wire be if it is attached 15 feet from the top and makes a 27
MatroZZZ [7]
The wire is attached 155 feet off the ground.sine(27) = 155 / hypotenuse hypotenuse = 155 / sine (27)hypotenuse =155 / 0.45399hypotenuse = <span> <span> <span> 341.42
</span></span></span>This means the guy wire is 341.42 feet long.

6 0
3 years ago
Please help!!!!!!!!!!!!!!
Doss [256]
The equation would be (100-10) ÷30 your answer would be 3
3 0
3 years ago
Read 2 more answers
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