(12/30)x100 is 40%
This is percent of incorrect answers. The total percent must be 100% so subtract 100-40=60%.
60% answers were answered correctly.
Based on the information given, it should be noted the central idea is C. Making and using a solar oven is a learning experience.
<h3>What is a central idea?</h3>
A central idea simply means the main idea that's in a literary work. It's the unifying element that's in a story.
The central idea is that making and using a solar oven is a learning experience and the detail that supports the central idea is that "by completing this project, you will make an inexpensive, ecologically friendly piece of equipment and learn about the science behind what you’re doing".
Learn more about central ideas on:
brainly.com/question/2684713
Answer:
Therefore,
.......Equation
Angelica's Brother's age is 11 years old.
Step-by-step explanation:
Given:
Let the current age of Angelica's Brother be 'x' years old
Angelica's current age is 13 years old,
According to given condition,
Therefore the Equation will be,

On solving this equation we get

Therefore,
Angelica's Brother's age is 11 years old.
Therefore,
.......Equation
Angelica's Brother's age is 11 years old.
-4/3x + 1/6 < 7/9
-4/3x < 7/9 - 1/6 7/9 - 1/6 = 42/54 - 9/54 = 33/54 = 11/18
-4/3x < 11/18
-x < 11/18 ÷ 4/3 11/18 ÷ 4/3 = 11/24
-x < 11/24
x > -11/24