Answer:
$5466.36
Step-by-step explanation:
This question is pretty cut and dry
just plug in the numbers
Answer:
h = (100x) / (3p)
Step-by-step explanation:
where,
I is the interest which is given by x
P is the principal amount which is given by p
R is the rate which is given 3% and
h is the time so,
Yes because it has one right angle (90°)
Let
x--------> the number of weeks
f(x)------->Peter's total video game time in hours
we know that
<u>The domain</u> of the function is the interval [0, 8]
<u>The y-intercept</u> of the function is the point (0,10)
is the initial amount of hours Peter's played
<u>The slope of the function</u> is equal to 
Is the rate at how many hours he is playing extra each week
using a graph tool
see the attached figure
#10 is much more difficult than #11. You have to translate the words into a usable equation form and then fill in what you know. "What percentage" is "x%", "of the cost of Thad's order" is going to be the dollar amount that paid for the order without delivery fees and those 2 things are multiplied because the word "of" means to multiply, "was used" is "=", "to calculate the delivery fee" is the dollar amount for the delivery fee. Your equation then looks like this: (x%)(149.21-19.46)=19.46 which is (x%)(129.75)=19.46. Divide both sides by 129.75 to get that x = .14998. Multiply by 100 to get the percent: 15%. The second one is easier, you need to set up 2 equations based on the info you're given. 21 waters and 25 cookies cost Thad 45, so that's the first equation. 21w + 25c = 45. If one water and one cookie cost 2, then w + c = 2 is the second equation. Solve the second equation for either w or c. Let's pick w: w = 2 - c and sub it in for the w in the first equation: 21(2-c)+25c=45. Distribute and combine like terms to simplify down to 4c = 3. Divide by 4 to get that a cookie costs 3/4 of a dollar, or 75 cents. Subtract that from 2 to get the cost of a water, which is $1.25.
