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3 years ago

What equation is equivalent to x + 8 = 21

Mathematics

2 answers:

san4es73 [151]3 years ago

7 0

Answer:

x= 13

Step-by-step explanation:

x + 8 = 21

x + 8-8 = 21-8

x = 13

weeeeeb [17]3 years ago

3 0

Answer: Im not sure I understand, do you want the answer to the question?? If you do then the answer is x=13

Step-by-step explanation:

x+8=21

-8 -8

x=13

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Different parallelograms require different ways of solving so theorems tell you how each parallelogram can be solved

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3 years ago

Dawn has to pay 10,990 for her college dorm room and tuition each year. About how much money does dawn spend the first 2 years o

IceJOKER [234]

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3 years ago

There are four boys and eight girls in a class. The teacher randomly selects three different students to answer questions. The f

umka21 [38]

The probability of the given condition is 28/165.

Given that, there are four boys and eight girls in a class.

We need to find the probability of the given question.

<h3>What is probability?</h3>

The probability is defined as the chances of happening of any random event or the possibility of happening of any event is called the probability.

The teacher randomly selects three different students to answer questions.

The first is the student is a girl, the second student is a boy, and the third student is a girl.

The total number of students=12, the number of boys=4 and the number of girls=8.

Now,

Step 1: The first student is a girl=8/12

Step 2: The second student is a boy=4/11

Step 3: The third student is a girl=7/10

In the first step, you select one of 8 girls among 12 students.

In the second step, you select one of 4 boys among the remaining 11 students.

In the third step, you select one of the remaining 7 girls among the remaining 10 students.

Thus, probability=(8/12)×(4/11)×(7/10)=28/165

Therefore, the probability of the given condition is 28/165.

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4 0

1 year ago

NEED HELP ASAP

qwelly [4]

In this question it is given that

Carla earns $8.43 per hour. It means that her hourly rate is $8.43 .

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First we have to understand what time and a half means .

Time and a half means 1.5 times of the normal rate. And to find the overtime pay, we have to multiply 1.5 and normal hourly rate. That is

$=1.5*8.43 = $12.65$

Therefore correct option is a .

4 0

3 years ago

Solve the inequality 2x – 5 > 7<br> a. x>6<br> b. x >12<br> c. x

julsineya [31]

You start with 2x -5>7 the you add five to both sides 2x-5+5>7 +5 2x.12 then divide both sides by 2 2x divided by 2 > and 12 divided by 2 and get x>6

3 0

3 years ago