The sum of two consecutive odd integers is 128. find the two integers.

2 answers:

7 0

<span>Call the first odd number x.
That means the next odd number would be x+2.
For example, if the first odd number is 9 then the next one would be 11, which is why it is plus 2. Okay?

So then, x+x+2=128
2x+2=128
2x=126
x=63
x+2=65
Thus, the two consecutive odd numbers are 63 and 65.

Hope I helped :)</span>

mars1129 [50]3 years ago

3 0

Let's make an equation where y is the largest number.
x+y=128
Since odd consecutive numbers are two away, we can make an equation for y.
x+2=y; let's plug that in for y in the first equation.
x+x+2=128; let's add like terms.
2x+2=128; let's subtract 2.
2x=126; let's divide.
126÷2=63=x
If x is 63, y is 65.
So the two numbers are 63 and 65.

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The Mad Hat Company must ship two different-sized boxes: The small ones cost them 45 cents each and weigh 6 ounces, and the larg

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Given :

The Mad Hat Company must ship two different-sized boxes: The small ones cost them 45 cents each and weigh 6 ounces, and the large ones weigh 25 ounces and cost $1.20 each.

The total shipment this morning weighed 20 pounds 7 ounces and cost $18.45.

To Find :

How many packages of each size were shipped.

Solution :

We know, 1 pound = 16 ounces.

So, 20 pound = 20×16 = 320 ounces.

Let, number of large and small box are l and s.

So,

25l + 6s = 327 ...1)

0.45s + 1.20l = 18.45 ...2)

Solving both the equations, we get :

x = 9 and y = 17