You first have to make an simple equation.
= How many pennies
= How many quarters
After that, since a penny is 5 Cents and a quarter is 25 Cents, we make the equation as:
(cents)
To write the whole entire thing in an equation is:
Since I brought the x from the left to right, we change the positive "" to negative ""
To bring the '' to , we get rid of the ""s from both equations.
Now, you are left with the simplified equation:
Now you find the .
= 28
Conclude:
So the y was the quarter and the x was the pennies.
Quarters = 13
Pennies = 28
Answer:
<em>12^2 + x^2 = 13^2</em>
Step-by-step explanation:
The student's error was that he didn't use the Pythagorean Theorem correctly
According to the Pythagorean Theorem, <em>a^2 + b^2 = c^2</em>, where c represents the hypotenuse
However, the student replaced <em>c</em> with <em>x</em>, which isn't the hypotenuse
The hypotenuse is 13, so <em>c</em> should be 13, not <em>x</em>
Add 2 to both sides: 3+2_> (<-the underline thing) , simplify 3+2 to 5: 5_>y, ur answer: y<_5
Jim bought a meal in a town that has no sales tax. He tlps 15%. All the meals Jim could buy for less than or equal to $30 total are $20.54 meal and $26.08 meal.
