The result after adding a set of numbers or is called a

The result after adding a set of numbers or is called a sum.

Step-by-step explanation:

Consider the provided information.

The four mathematical operations are:

The sign + is used to add numbers.

The sign - is used to subtract the numbers.

The sign × is used for the product of the numbers.

The sign ÷ is used for division of the numbers.

When we add two or more number by using the operator + the obtained number or value is called the sum of the numbers.

For example:

Consider the number: 2 + 5 if we add the number the resulting value will be 7.

The number 7 is the sum of 2 and 5.

Thus, the result after adding a set of numbers is called a sum.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.