Answer:
un prisma rectangular es una forma 3D con 6 caras rectangulares listo
we know that
The formula of the law of cosines is

in this problem we have

Round to the nearest whole degree
Z=51 degrees
therefore
<u>the answer is</u>
51 degrees
Answer:
45%
Step-by-step explanation:
First, let's set up a fraction of how much money she spent for fruit out of the total amount of money she spent.

For a percentage, we need a fraction out of 100. To do this, we can multiply the fraction by 5/5 (5*20=100). Notice we can only do this since 5/5 is equivalent to 1, so you are technically multiplying the fraction by 1.

A percentage is just the numerator of a number over 100 therefore it is equal to...
45%
Let us say that the number of weeks is "x" and the number of chores is "y".
If we state an algebraic expression for Janie's allowance it would be
3x+2y=13
However, there are two variables, hence many answers. To solve this problem, there must be more information about the relation between x and y.