Question

What number does 5a+ab represent when a =10 and b=-1

Answer 1

Hey there!

In order to evaluate this expression, all we should do is plug in the values of the variables and simplify.

We are given that

a=10

b=-1

Plug in the values:

5(10)+(10)(-1)

multiply 5 times 10 and 10 times (-1) and add the products:

50+(-10)

or... actually subtract.

50-10

40

Hence, the answer is

`\boxed{\boxed{\bold{40}}}`

Hope everything is clear.

Let me know if you have any questions!

#LearningDoesn'tEnd

:-)

Answer 2

5a + ab = 40

Explanation:

Sub in 10 for a, making the equation 5 x 10 + 10 x b

Then sub in - 1 for b making it 5 x 10 + 10 x - 1

Then multiply making it 50 + - 10

Then subtract since adding negative is actually subtracting and you get 40