Two numbers multiply to be -7 and add to be -6. What are the numbers?

Example; 2,3

Given:

Let the two numbers be x and y.

Two numbers multiply to be -7 and add to be -6.

This can be written in equation as,

and

Value of the two numbers:

Let us determine the value of the two numbers using substitution method.

Substituting in the equation , we get;

Simplifying, we get;

Thus, the values of x are x = 1,-7

When x = 1 , the equation becomes

When x = -7, the equation becomes

Therefore, the two numbers are 1 and -7

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500