Answer:
80
Step-by-step explanation:
20 ÷ 1/4 is the same as 20 x 4 because when dividing with fraction you must change division to multiplication and take the reciprocal of the second fraction
therefore, answer is 80
Answer:
96 pages.
Step-by-step explanation:
We know that Charlie read the same amount of pages each day, if we call <u>N </u>the number of pages read each day, his first number on the list was N, the second number was N + N = 2N, the third number was N + N + N = 3N....
His mom sums up these numbers and gets 432. Therefore we have that:
N + 2N + 3N + 4N + 5N + 6N + 7N + 8N = 432
36N = 432
N = 12.
Now we know that Charlie read 12 pages per day. With this information we can conclude that by the end of the 8th day he read:
12 pages x 8 = 96 pages.
Answer:
x = 2
General Formulas and Concepts:
Pre-Alg
- Order of Operations: BPEMDAS
Step-by-Step explanation:
Step 1: Define
8(x + 5) + 4 = 60
Step 2: Solve for a
1. Distribute 8: 8x + 40 + 4 = 60
2. Combine like terms: 8x + 44 = 60
3. Isolate x term: 8x = 16
4. Isolate x: x = 2
Step 3: Check
Plug in x to verify it’s a solution.
1. Substitute: 8(2 + 5) + 4 = 60
2. Add: 8(7) + 4 = 60
3. Multiply: 56 + 4 = 60
4. Add: 60 = 60
For something to be a function, an input (x value) can only have ONE output (y value)
For example:
(2 ,4)
(2, 5) This is not a function because the input has multiple outputs.
So your answer is the 1st option
(7/8)*(9/10)=7*9/(8*10)=63/80
