The sum of three consecutive odd integers is –15. What are the numbers?

1 answer:

3 0

Odd numbers are represented as 2n+1 where 2 is a natural number ( negative and possitive whole numbers)

consecutive odd numbers are 2 away from each other so 3 consecutive odd numbers would be
(2n+1),(2n+1+2),(2n+1+2+2)
the all add to -15 so they must all be negative
2n+1+2n+1+2+2n+1+2+2=-15
add like terms
6n+9=-15
subtract 9 from both sides
6n=-24
divide both sides by 6
n=-4
subsitute
first number=2n+1=2(-4)+1=-8+1=-7
second number=2n+1+2=2(-4)+3=-8+3=-5
third number=2n+1+2+2=-8+5=-3

the numbers are -7,-5, -3
the answe ris B

You might be interested in

At a certain fast-food restaurant, 69 % of customers order a chicken sandwich, 46 % of customers order french fries, and 36 % of

Leviafan [203]

We have events:

A - <span>customer orders a chicken sandwich
</span>B - <span>customer orders french fries

and probabilities:

$P(A)=0.69\\\\P(B)=0.46\\\\P(A\cap B)=0.36$

so:

$P(A\cup B)=P(A)+P(B)-P(A\cap B)=0.69+0.46-0.36=\boxed{0.79}$
</span>

7 0

2 years ago

Simplify the expression 4 squaere root of 9

nlexa [21]

Answer:

Step-by-step explanation:

4 / sqrt {9}

4(3)

4 x 3

7 0

1 year ago

Which expression is equivalent to 5y (8y-3)?