Answer:
6a + 13
Step-by-step explanation:
Given
2a + 4(a + 5) - 7 ← distribute parenthesis
= 2a + 4a + 20 - 7 ← collect like terms
= 6a + 13
Answer:
x^2 + y = 18
Step-by-step explanation:
The equation is
Let us assume the first number be x
And, the second number be y
Since in the question it is mentioned that the sum of square of a number and the second number is eighteen
That means
x^2 + y = 18
This represent the equation
12/21 in its simplest form is 4/7.
To find this out we need to divide the numerator and denominator by the GCF of 12 and 21 which is 3.
12/21
12 ÷ 3 = 4
21 ÷ 3 = 7
4/7
12/21 in its simplest form is 4/7.
12/21 = 4/7
Answer:

Step-by-step explanation:
We want to simplify:

We need to apply the exponential property for products of powers.
Recall that:

We apply this rule to get:

This simplifies to:

We rewrite as positive index to get:

Answer:
3 3/4
Step-by-step explanation:
3/4 * 1/5
First you would turn 1/5 into a reciprocal
Now your equation would be 3/4 *5/1
Now you multiply 3/4 * 5/1
15/4
Now find 15/4 as a mixed number
15/4 as a mixed number would be 3 3/4
Therefore there are 3 3/4 1/2 cup servings in a 3/4 cup of ice