I need help you guys!!!

Raphael went to the store and bought 2 1/2 pounds of chicken for $9.00. What was the cost per pound of the chicken? Round your a

Anon25 [30]

Answer:

3 3/5

Step-by-step explanation:

Raphel bought 2 1/2 pounds of chicken for $9

Therefore the cost per round of the chicken can be calculated as follows

9÷5/2

= 9×2/5

= 18/5

= 3 3/5

5 0

2 years ago

Of the 130 students distance learning math with Mr. Bischof, 63% of them actually work through the material. Approximately, how

QveST [7]

Answer:

82

Step-by-step explanation:

because 63% of 130 is 81.9

and since the question is asking approximately which means rounding, so you round 81.9 to get 82.

7 0

3 years ago

A researcher at a major clinic wishes to estimate the proportion of the adult population of the United States that has sleep dep

Thepotemich [5.8K]

Answer: n = 600.25 ≈ 601 ( sample size)

the minimum sample size of the adults in United State who have sleep deprivation is 601

Step-by-step explanation:

Given that;

the confidence level = 95% = 0.05

the Margin of error E = 4% = 0.04

∴ level of significance ∝ = 1 - C.L

∝ = 1 - (95/100)

= 0.05

Z∝/2 = 0.05/2 = 0.025

Z-critical value at 95% confidence level is OR level of significance at 0.025 = 1.96 (z-table)

Now to calculate the sample size, we say

n = (Z(critical) / M.E )² P ( 1 - P)

now we substitute

n = (1.96 / 0.04)² × 0.5 ( 1 - 0.5)

n = 2401 × 0.5 × 0.5

n = 600.25 ≈ 601

Therefore the minimum sample size of the adults in United State who have sleep deprivation is 601

6 0

3 years ago

The speed v of a gear varies inversely as the number of teeth t. If a gear that has 42 teeth makes 24 revolutions per minute (rp

fgiga [73]

<span>The speed v of a gear varies inversely as the number of teeth t

</span>
if a gear that has 42 teeth makes 24 revolutions per minute
<span> Then a gear that has 24 teeth will make 42 revolutions.

Hope it helps!
</span>

6 0

3 years ago

What is y-intercept of the graph

Kipish [7]

Answer:

1a. y-intercept: 12

1b. slope: -3/2

1c. equation: y = -3/2x +12

2a. y-intercept: -9

2b. slope: 2

2c. equation: y = 2x -9

Step-by-step explanation:

A) We observe the pattern to be <em>x-values in the table increase by 2, while y-values in the table decrease by 3</em>. We notice the first x-value is 2, so extending the table upward to x=0 would tell us the y-intercept. That is, adding 3 to the first y-value will give the y-intercept as (x, y) = (0, 12).

B) We have already observed that the "rise" (change in y) is -3 for each "run" (change in x) of 2. The slope is the ratio of these changes:

slope = m = rise/run = -3/2

C) From the above, we know that m=-3/2 and b=12. Putting these values into the equation for the line gives ...

y = -3/2x +12

__

A) We observe the pattern to be <em>y-values increase by 2 while x-values increase by 1</em>. As before, we can find the point that would go before the first one shown in the table. It will have an x-value of 0 and a y-value of -9.

the y-intercept is -9

the slope is 2/1 = 2

the equation is y = 2x -9

7 0

2 years ago