Answer:
I = Prt
Interest = Principal x rate x time
Step-by-step explanation:
1890 = 7000(3)r
1890 = 21000r
r = 1890/21000
r = .09 or 9%
Answer:
8 = 34 + (n * 2) / 8 = (n * 2) + 34 ; n = -13
Step-by-step explanation:
In this question we have 2 numbers and a variable. The variable is "a number," which I have represented as "n" in my answer. As long as there is a letter in the spot of n, that is the correct answer- your assignment might have represented the variable differently.
When the question says "8 is" it is saying "8 is equal to." "Is" represents an equals sign in this equation. "More than" represents addition, or the sum of. "The product of" represents multiplication. "The product of a number and 2" means that we are multiplying n and 2 BEFORE adding it to 34, so we want to make sure to include those in parenthesis to signify that we do indeed solve that part of the equation first. As long as you know PEMDAS you should be fine here, but I prefer to add what the equation wants me to do first in parenthesis so that it's more readable. Since the order of numbers doesn't matter in addition, 34 can go both before and after "the product of n and 2."
This gives us the equation "8 = 34 + (n * 2)," or the alternate "8 = (n * 2) + 34."
If you want to solve for N, you would need to subtract 34 from 8 and 34 itself, leaving -26 = (n * 2) or -26 = n(2). Then, since we're multiplying n by 2, we want to divide 2 by 2 to cancel it out, doing the same thing to -26. We are left with -13 = n, or n = -13.
Answer:
<u>1) 16.5.</u>
<u>2) 14.9.</u>
<u>3) 18.8.</u>
Step-by-step explanation:
First of all, let's refer to the formulas for calculating BMI:
Taking into consideration that the weight and height we have are in kg's and cm, let's choose the first formula to simplify the calculations:
1. Maria Jose's weight is 20 kgs and her height is 110 cm. Get the BMI.
First, we need to convert the hight from cm to m:
Calculate BMI:
(Rewriting calculations):
20 / (1.1)²=
30 / 1.21 =
16.5.
2.Freya's weight is 30 kgs and her height is 142 cm. What is Freya's BMI?
First, we need to convert the hight from cm to m:
Calculate BMI:
(Rewriting calculations):
30 / (1.42)²=
30 / 2.0164 =
14.9.
3. Sam's weight is 50 kgs and his height is 163 cm. What is Sam's BMI?
First, we need to convert the hight from cm to m:
Calculate BMI:
(Rewriting calculations):
50 / (1.63)²=
50 / 2.6569 =
18.8.
Answer:
Jill's best friend jumped 8/21 feet further than Jill.
Hope this helps !