The value of the expression 2n - 1 when n = 7 is 13.
<h3>Equation</h3>
2n - 1
when n = 7
- Substitute n = 7 into the equation
2n - 1
= 2(7) - 1
= 14 - 1
= 13
<h3>What is mathematical expression?</h3><h3 />
Mathematical expression is an expression which involves the combination of numbers and variables in a valid way, in a function of addition, subtraction, multiplication, division and exponentiation
Therefore, the value of the expression 2n - 1 when n = 7 is 13.
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Answer:
No thanks I don't feel like it
Step-by-step explanation:
I don't feel like it
4)
12/16=21/b
multiply both sides by b
(12/16)b=21
now multiple both sides by (16/12)
b = 21 (16/12) =28
5)
rate is distance / time or time/distance
train travels 279 km per 1.5 hr =270/1.5
or
1.5 hr per 270 =1.5/27p
answer choice a and c matches that.
looking at choice C...270km/1.5hr=5hr/270km
looking at choice A.. 1.5hr/270km=5hr/k km
the units don't match for choice C so the
right answer is A
6)
1.5/270=5/k
multiply both sides by k
(1.5/270)k=21
now multiple both sides by (270/1.5)
k = (270/1.5)21= 900
7) 75 points per 6 game
75 points / 6 games
75/6=P/20
multiply both sides by 20
(75/6)20=P
P=250
Answer:
They paid $89.1 for the guitar.
Step-by-step explanation:
Can I have Brainliest?
