Answer:
Step-by-step explanation:
I think the question below is the one you wanted to ask:
<em>A pool has some initial amount of water in it. Then it starts being filled so the water level rises at a rate of 6 centimeters per minute. After 20 minutes, the water level is 220 centimeters
</em>
<em>Graph the pool's water level (in centimeters) as a function of time (in minutes).</em>
Here is my answer:
To draw the linear line, we need to identify the equation that modles this situation. As we know the water level rises at a rate of 6 cm per minute which mean the slope m = 6
The standard form is: y = mx + b <=> y = 6x + b
After 20min the water level is 220 cm
<=> 220 = 6(20) +b
<=> b = 100
So your equation is : y = 6x + 100 and the initial amount of water in it is 100
Please have a look at the attached photo
Answer:
The amount of strawberries Lexi's sister ate=2 29/80 pounds
Step-by-step explanation:
We develop the following expressions;
Original weight of Lexi's strawberries=2 7/10 pounds
Amount eaten by Lexi's sister=fraction eaten by Lexi's sister×Original weight of Lexi's strawberries
where;
Fraction eaten by Lexi's sister=7/8
Original weight of Lexi's strawberries=2 7/10=27/10
replacing;
Amount eaten by Lexi's siser=(7/8)×(27/10)=2 29/80
The amount of strawberries Lexi's sister ate=2 29/80 pounds
Answer:
The value of the test statistic is z = -0.877.
Step-by-step explanation:
Testing the difference in mean time spent on housework between husbands and wives.
At the null hypothesis, we test if there is no difference, that is, the subtraction of the means is 0:
At the alternate hypothesis, we test if there is a difference, that is, the subtraction of the means is different from 0.
The test statistic is:
In which X is the sample mean, is the value tested at the null hypothesis, and s is the standard error.
0 is tested at the null hypothesis:
This means that
For the wives the mean was 7 hours/week and for the husbands the mean was 4.5 hours/week. The standard deviation of the differences in time spent on house work was 2.85.
This means that
What is the value of the test statistic for testing the difference in mean time spent on housework between husbands and wives?
The value of the test statistic is z = -0.877.
Answer:
96 bales
Step-by-step explanation:
=
You must multiply 6 by 64, which is 384.
Then you divide that by 4, which is 96.
Therefore, the answer is 96.
Also, I lined up the bales in the same row and horses in the same row, so this way can help. It can also help if it's in the same column though, but I hope this helped you!
Answer:
Terms: 4x, -
Coefficients: 4,
Step-by-step explanation:
The terms of an expression are the numbers and variables that are being added. In this expression 4x is being added to -. This means that they must be the terms. The coefficients are the constants that come before a variable. A variable is an unknown number represented by a letter, in this case, x. So the coefficients are 4 and because both these numbers are being multiplied by a variable.