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diamong [38]
2 years ago
12

Need help on this! Please help

Mathematics
1 answer:
Olegator [25]2 years ago
3 0

Answer:

PDR= 127

Step-by-step explanation:

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What is the value of x? <br> (x + 40)° (3x)°<br><br> A. 20<br> B.35 <br> C. 60<br> D. 70
Olenka [21]
Hello!

We are given the equation below.

x+40=3x

We want to get all of the variables on side. First of all let's subtract 40 from both sides.

x=3x-40

Now we rearrange our equation so the commutative property will work.

x=3x+(-40)
x=-40+3x

Now we subtract 3x from both sides.

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We divide both sides by -2.

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I hope this helps!
4 0
2 years ago
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in a class of 50 students 15 are girls.five girls and 2/7 of the boys were chosen to play a match .the total number of students
Aleks [24]

Answer:

15 students

Step-by-step explanation:

No. of boys students = No. of all students - No. of girls

no. of boys =50-15 = 35 boys

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and the girls that will play the match are 5 girls

so, no of students chosen to play = 5+10=15 students

5 0
3 years ago
Determine whether the following probability experiment represents a binomial experiment and explain the reason for your answer.
allochka39001 [22]

Answer:

No. See explanation below.

Step-by-step explanation:

Since the cards are being selected <u>without replacement,</u> every time we select a card, <u>the probability varies</u> (since there is one less card) and therefore, the probability doesn't remain the same for every trial and therefore, the probability of success changes for every trial.

It is because of this that this probability experiment doesn't represent a binomial experiment.

6 0
3 years ago
If the two sides of one triangle are proportional to two sides of another triangle ande their included angles are congruent then
Ray Of Light [21]

if two of the sides are proportional and the included angles are congruent  then the triangles are SIMILAR.

Answer: similar

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3 years ago
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3 years ago
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