F(x)=x(x+1)
multiply each term in the parethesis by x.
x times x plus x; x times x equal x square.
so it would be:
x2 + x
Answer:
$ 17.85
Step-by-step explanation:
Regular price = $ 21
Reduction = 15% of regular price
= $ 3.15
Price of the item after reduction = 21 - 3.15 = $ 17.85
Answer:
this might help
Step-by-step explanation:
1) Fat:
a. Multiply the grams of fat by 9* = (x) the number of fat calories. b. Divide (x) the number of fat calories by the total number of calories in the food
item = % fat content. * 1 gram of fat contains 9 calories (kcal)
2) Saturated Fat:
a. Multiply the grams of saturated fat by 9 = (xx) the number of saturated fat
calories in the food item. b. Divide (xx) the number of saturated fat calories in the food item by the total
number of calories in the food item = % of saturated fat.
3) Sugar:
a. Divide the number of grams of sugar by the total weight of the food in grams = %
of sugar. (Total sugar)
I guess you want to find the average speed for the whole journey
average speed = distance travelled / time
the distance from home to the shop = speed * time = 0.5*10 = 5 miles
time for travelling back = distance / speed = 5/30 = 1/6 hours
average speed for whole journey = 10 / (1/2 + 1/6) = 10 * 3 / 2 = 15 mph
