13 is at least the difference of a number v and 1

Answer:2 and a half cups of sugar

Step-by-step explanation:

1/4*10

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Age of John = m

Age of Keisha = n

m = 6 + n

m + n = 4n

m = 9

n = 3

The age of John is 9

The age of Keisha is 3

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Let the age of John = m

Let the age of Keisha = n

Now,

John is 6 yearsolder than Keisha.

This means,

m = 6 + n _____(1)

Together their ages equal fourtimesKeisha's age.

This means,

m + n = 4n _____(2)

From (1) and (2) we get,

6 + n + n = 4n

6 + 2n = 4n

6 = 4n - 2n

6 = 2n

n = 3

Now,

m = 6 + n

m = 6 + 3

m = 9

Thus,

The age of John is 9

The age of Keisha is 3

Learn more about expressions here:

brainly.com/question/3118662

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It will happen again at 1:05  which is 1 hour and 5 minutes

Answer:

the answer is -4.5

Step-by-step explanation:

because when you have two negatives you add them which gives you 9 but -3+5 since 5 is bigger than -3, you minus 3 from 5 and that gives you 2 and -9/2 is -4.5