Answer: 6 years
Step-by-step explanation:
Let Maria's age be x
Jonathan is four times Maria's age. This means that Jonathan age = 4x
In 3 years, he will be three times as old as Maria is then. This can be written as:
4x + 3 = 3(x + 3)
4x + 3 = 3x + 9
4x - 3x = 9 - 3
x = 6
Maria is 6 years
Answer:
the answer Is C
Step-by-step explanation:
hope it correct
The following is an example of a cluster sampling.
Cluster sampling<span> is a </span>sampling<span> technique used when "natural" but relatively heterogeneous groupings are evident in a statistical population. It is often used in marketing research. In this technique, the total population is divided into these groups (or </span>clusters) and a simple randomsample<span> of the groups is selected.</span>
Answer:
-8x + 146
Step-by-step explanation:
Step 1: Write out expression
3(58 - 6) - 2(4x + 5)
Step 2: Parenthesis
3(52) - 2(4x + 5)
Step 3: Multiply
156 - 2(4x + 5)
Step 4: Distribute
156 - 8x - 10
Step 5: Combine like terms (constants)
-8x + 146
