Ask question

Ask question

All categories

3 years ago

13

Devante and Chase went shopping. Devante spent $17 less than Chase. If we let z represent how much Chase spent, write an algebra

ic expression for how much Devante spent.

1 answer:

Mrac [35]3 years ago

8 0

Answer: z-$17

Step-by-step explanation:

Z is chase and devante spent 17 less so the answer is z-17

You might be interested in

A study sampled 350 upperclassmen (Group 1) and 250 underclassmen (Group 2) at high schools around the city of Houston. The stud

iris [78.8K]

Answer:

$-0.048$

Do not reject $H_0:P_1-P_2=0$

Step-by-step explanation:

From the question we are told that

Sample size $n_1=350$

Sample size $n_2=250$

Sample proportion 1 $\hat P= \frac{25}{350} =>0.07$

Sample proportion 2 $\hat P= \frac{19}{250} =>0.076$

95% confidence interval

Generally for 95% confidence level

Level of significance

$\alpha = 1-0.95=>0.05$

$\alpha /2=\frac{0.05}{2} =>0.025$

Therefore

$Z_a_/_2=1.96$

Generally the equation for confidence interval between $P_1 - P_2$ is mathematically given as

$(\hat P_1-\hat P_2)\pm Z_a_/_2\sqrt{\frac{\hat P_1(1-\hat P_1)}{n_1}+\frac{\hat P_2(1-\hat P_2)}{n_2} }$

$(0.07-0.076)\pm 1.96\sqrt{\frac{0.07(1-0.07)}{350}+\frac{0.076(1-0.076)}{250} }$

$(0.07-0.076)\pm 1.96\sqrt{4.66896*10^-^4 }$

$(-0.006)\pm 0.042$

$(-0.006)- 0.042=>-0.048$

$(-0.006)+ 0.042=>0.036$

Therefore

Confidence interval is

$-0.048$

Conclusion

Given the confidence interval has zero

Therefore do not reject $H_0:P_1-P_2=0$

6 0

2 years ago

Which of the following is a true statement about functions?

chubhunter [2.5K]

Answer:

A

Step-by-step explanation:

6 0

3 years ago

Prinicipal Ramirez wants each of the 588 students at her school to solve 40 math problems for homework tonight. If every student

masha68 [24]

Step-by-step explanation:

588 × 40 = 23,520 math problems they would solve that evening

3 0

3 years ago

Line segment GH is congruent to line segment IJ. Which of the following is an equivalent statement?

Bogdan [553]

The first option is how you wrote your statement in math.

7 0

3 years ago

Read 2 more answers

To take a taxi, it costs $ 3 . 0 0 $3.00dollar sign, 3, point, 00 plus an additional $ 2 . 0 0 $2.00dollar sign, 2, point, 00 pe

Kaylis [27]

You went 8 miles if that's the question

3 0

3 years ago