Answer:
They will need to hire 5 testers.
Step-by-step explanation:
This question can be solved using a simple rule of three.
For each 10 developers, we need 2.5 testers. So how many testers are needed for 20 developers?
10 developers - 2.5 testers
20 developers - x testes




They will need to hire 5 testers.
Let's see....
QUESTION: Add. Write your answer as a mixed number in simplest form.

1. Rewriting our equation with parts separated
<span><span>

</span></span>2. Solving the whole number parts
<span>

</span>3. Solving the fraction parts
<span><span>

</span></span>4. Reducing the fraction part, 15/9,
<span><span>

</span></span>5. Simplifying the fraction part, 5/3,
<span><span>

</span></span>6. Combining the whole and fraction parts
<span><span><span>

ANSWER:
Hope that helps!</span></span></span>
Multiply 18 and 24 then put the answer on the first block!
Since the absolute value makes numbers absolute or real numbers you could replace the ? with 8/9 or -8/9 since the negative will go away because of the absolute value sign.
Answer:
75%
Step-by-step explanation:
When we multiply a number by 1.75.
Now, note that: 
Therefore, when we multiply a number by 1.75, it is the same as increasing by 75%.
Let us take an example say the number 15.
If we increase 15 by 75%, we have:
- 15+(0.75X 15)=15+11.25=26.25