Answer:
<h2>C=P-0.4x</h2>
Step-by-step explanation:
Step one:
we want to find the expression for the cost of any type of shirt for an applied discount of 40%.
let the price of any shirt be P
let the cost of any shirt be x
and also the price after discount applied be C
Step two:
The discount is
=40/100*x
=0.4*x
=0.4x
Hence the cost of the shirt will be the initial cost minus the discount
C=P-0.4x
Answer:
To find the answer, you must multiply/divide the amount in cups by calories per cup.
Step-by-step explanation:
Butter only has 0.3 cups, so The calories will only be 30% of what is written down. 30% of 1627= <u>488.1 calories</u>
Marshmallows is 4.25 times larger then the calories per cup, so now you'll have to multiply.
4.25*159=<u>675.75 calories</u>
Finally, Cereal is 5.5 times larger then the calories per cup, so we will multiply again.
5.5*101=<u>555.5 calories</u>
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Finally, add all the number together to find the total amount of calories in the marshmallow treats.
555.5+675.75+488.1=<u>1,719.35 calories</u>
There is a total of 1,719.35 calories in the marshmallow treats.
The answer would be 22 yards
Answer:
The 99% confidence interval for the mean distance from home to work for all residents of this state is between 8.49 and 9.19 miles.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Z-table as such z has a p-value of .
That is z with a pvalue of , so Z = 2.575.
Now, find the margin of error M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 8.84 - 0.35 = 8.49 miles.
The upper end of the interval is the sample mean added to M. So it is 8.84 + 0.35 = 9.19 miles.
The 99% confidence interval for the mean distance from home to work for all residents of this state is between 8.49 and 9.19 miles.
Answer: A is the right answer
Step-by-step explanation:
y=4x+5
m=-4/-1=4
y-3=-1/4(x-8)
4(y-3)=-x+8
4y-12=-x+8
4y=-x+20
y=-1/4x+5