30 minutes is 1/2 an hour so 16 x 2 = 32 the phone charges at 32% per hour.
1. Multiply the number of hours by the rate and add the original 10% to that for total charge:
Y = 0.32h + 0.10
2. The phone charges at 16% every thirty minutes which is a half hour so you double the rate it charges to get the rate per hour. The phone charges at 32% per hour that it is charging.
Answer:
-13c + 3
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
Step-by-step explanation:
<u>Step 1: Define</u>
5 - 4c - 2 - 9c
<u>Step 2: Simplify</u>
- Combine like terms (c): -13c + 5 - 2
- Combine like terms (Z): -13c + 3
<span>40x/64ydivided by 5x/8y would be better written as
</span><span>40x/64y
------------ which in turn would be clearer if written as
</span><span>5x/8y
40x
--------
64y
==========
5x
------
8y
Now invert (5x/8y) and multiply (40x/64y) by your result:
</span> 40x 8 y
-------- * ------ Reducing, we get 8/8, or 1. The answer is 1.
64y 5x
Answer:
= -1/2
Step-by-step explanation:
Pick two points
(1,0) and (3,-1)
Then use the slope formula
m = (y2-y1)/(x2-x1)
= (-1 -0)/(3-1)
= -1 /2
