Answer:
49
Step-by-step explanation:
devaughn= x+15
sydney= x
set an equation adding both their ages
x+x+15=113
2x+15=113
subtract 15 from both sides
2x=98
x=49
sydney is 49
Answer:
4x-5=3x+3
Step-by-step explanation:
Answer:
12,376.
Step-by-step explanation:
The order in which they are chosen does not matter so this is a combination NOT a permutation.
That is 17C11
= 17! / (11! 6!)
= (17*16*15*14*13*12) / (6*5*4*3*2*1)
= 12376.
Answer:
g(4) = 20
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>
g(x) = 4x + 4
g(4) is x = 4
<u>Step 2: Evaluate</u>
- Substitute in <em>x</em>: g(4) = 4(4) + 4
- Multiply: g(4) = 16 + 4
- Add: g(4) = 20
Answer:
-53/8 or -6 5/8
Step-by-step explanation:
replace the x in 3/x^3, 2^3=8, then subtract 7