All categories

1 year ago

Pleases complete the proof but with each step can you tell me which property of equality to use.

Mathematics

1 answer:

wel1 year ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

When a class took a math test, 15% of the class failed, 25% made some mistakes (but didn’t fail), and 24 students got perfect sc

mart [117]

Answer:

There are 40 students in the class.

Step-by-step explanation:

We are given the following in the question:

Percentage of class that failed = 15%

Percentage of class that made mistakes but did not fail = 25%

Number of students that got perfect score = 24

Percentage of students that got perfect score =

$100\%-\text{Percentage of class that failed}-\text{Percentage of class that made mistakes but did not fail}\\= 100\%-15\%-25\%\\= 60\%$

Let x be the total number of students in the class.

Then, we can write:

$60\% \text{ of } x = 24\\60\% \times x = 24\\\\\displaystyle\frac{60}{100}\times x = 24\\\\x = 24\times \frac{100}{60}\\\\x = 40$

Thus, there are 40 students in the class.

5 0

3 years ago

Read 2 more answers

What exactly are prime numbers?

nignag [31]

Prime numbers are numbers that only have a factor of one and its self.

4 0

3 years ago

Read 2 more answers

O is the center of the regular octagon below. Find its area. Round to the nearest tenth

Sedbober [7]

Answer:229.1

Step-by-step explanation: to much work I thought to hard that’s the answer your welcome buddy

5 0

2 years ago

HELP MEE BRAINLIEST PLZZZZ!!!!

wel

The 3rd one

This is because in the graph it’s looking for numbers 70-79 but only with 2 numbers and the 3rd is the only one that fits in the description.

8 0

3 years ago

Find the ratio a:b- 1) 2a=9b 2) a+b=3b please explain your work

Alex777 [14]

1) 2a = 9b ⇒ 2:9

2) a + b = 3b ⇒ a = 2b ⇒ 1:2

Answers: 2:9 and 1:2

6 0

3 years ago