All categories

2 years ago

The product of two consecutive odd positive numbers is 399. Find the two numbers

1 answer:

4 0

Two consecutive odd number have the form: 2n+1; 2n+3.
We have:
(2n+1)(2n+3)=399
=> 4x^2+8x+3=399
=> 4x^2+8x-396=0
=> 4(x+11)(x-9)=0
=> x=-11; x=9

You might be interested in

What does 50/x=2 what is x

Harman [31]

Answer:

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

The Hire Purchase priceola microwave

pishuonlain [190]

Answer:

150

Step-by-step explanation:

$600/$4 =150

=150 installments

5 0

1 year ago

Heather increase the amount of soda she drinks from 48 oz. to 54 oz. By what percentage did Heather increase the amount of soda

baherus [9]

Answer:

12.5 percent increase

Step-by-step explanation:

so we know from 48 oz to 54 oz, the amount increases by 6 oz

now we just have to determine 6 oz is what percentage of 48 oz

6 goes into 48 eight times

100 divided by 8 is 12.5

6 is 12.5 percent of 48

we can double-check this by multiplying 12.5 x 8 which equals 100 so that confirms its 12.5 percent

we get the 8 by seeing that 6 goes into 48 eight times.

if this is confusing comment below and i'll try to clarify

5 0

2 years ago

1 2/5m - 3/5 ( 2/5m + 1 )

Hunter-Best [27]

Answer:

1 4/25 - 3/5, or 29/25 - 3/5, or $\frac{(29m - 15)}{25}$

it doesn't really matter they all mean the same

Step-by-step explanation:

1 2/5m - 3/5(2/5m + 1)

multiply first

1 2/5m - 6/25m - 3/5

multiply 1 2/5 only so the denominator is 25 as we can't simplify 6/25, it's so we can add them together, we can't add 3/5 tho bc it's a different term so there's no need to multiply that.

1 10/25m - 6/25m - 3/5

add/subtract

1 4/25m - 3/5

4 0

2 years ago

*PLEASE ANSWER[MULTIPLE CHOICE] FOR BRIANLIEST* (08.01 MC)

Viktor [21]

Your answer would be (3, 4) is the solution to both lines A and B.

7 0

2 years ago