Answer:
x = 11
Step-by-step explanation:
The two angles form a straight line so they add to 180
4x+15 + 11x = 180
Combine like terms
15x+15 = 180
Subtract 15 from each side
15x+15-15 = 180-15
15x = 165
Divide by 15
15x/15 =165/15
x = 11
An exponent is a number that is used to multiply the base number by itself. If your number is 4 to the power of two you need to multiply four by four to get sixteen
Answer:
2
Step-by-step explanation:
2. The median would be 18
The number of adults waiting to see the new superhero movie is 62.
<h3>
How many adults are waiting in line?</h3>
Ratio expresses the relationship between two or more numbers. Ratio is used to compare two or more numbers. It shows the number of times that one value is contained in another value.
Looking at the ratio given in this question, we know that there are 1 1/2 (3 /2) more children than adults on the line to watch the new superhero movie.
Number of adults waiting to see the movie = (ratio that represents adults / sum of ratio) x total number of people wafting in line
Sum of ratios = 2 + 3 = 5
(2/5) x 155 = 62 people
To learn more about ratios, please check: brainly.com/question/25927869
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Let's start by seeing what percentage is incorrect.
100-85=15
So, 15% is incorrect when answering 3 problems wrong. So let's divide 15 by 3.
15÷3=5
So, each problem is worth 5%, let's divide 100 by 5. The reason I'm doing thiis is to find how many questions are on the quiz, since if you got them all right, it's 100.
100÷5
20
There are 20 questions, let's make sure this is correct.
If she got 3 wrong, she got 17 right. Let's calculate her percentage and make sure it is the right one.
17÷20
.85×100
85%
So, there are 20 questions on the math quiz.
