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olasank [31]
3 years ago
15

X+12=31 solve for x i’m in a breakout room i have limited time to finish this

Mathematics
1 answer:
Nitella [24]3 years ago
4 0

Answer: x=19

Step-by-step explanation:

x=31-12

x=19

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Mrs. Hudson plans to give a 10 question multiple choice exam in which each question has 4 options. Each question counts for 1 po
OleMash [197]

Answer:

0.0004158

0.00041581

Step-by-step explanation:

Given that :

Number of Questions Correct

Probability for Guessing Correctly

0

0.05631351

1

0.18771172

2

0.28156757

3

0.25028229

4

0.14599800

5

0.05839920

6

0.01622200

7

0.00308990

8

0.00038624

9

0.00002861

10

0.00000095

Probability of answering 8 or more questions correctly ;

Direct sum:

P(x ≥ 8) = p(8) + p(9) + p(10)

P(≥ 8) = 0.00038624 + 0.00002861 + 0.00000095

= 0.0004158

Complement :

P(x ≥ 8) = 1 - p(x ≤ 7)

1 - [p(7) + p(6) + p(5) + p(4) + p(3) + p(2) + p(1) + p(0)]

1 - [0.00308990 + 0.01622200 + 0.05839920 + 0.14599800 + 0.25028229 + 0.28156757 + 0.18771172 + 0.05631351]

1 - 0.99958419

= 0.00041581

8 0
3 years ago
Jeff uses 3 fifth- size strips to model 3/5. he wants to use tenth size strips to models an equivalent fraction. how many tenth
Lapatulllka [165]
<span>To put the unknown in other words, we are to determine a fraction that has a denominator of 10 which should be equivalent to 3/5. If we let x be the numerator of the second fraction such that we form a proportion out of the two fractions that is,
     3/5 = x/10
 The value of x is calculated as below,
          x = (3)(10) / 5 = 6
 ANSWER: 6</span>
6 0
4 years ago
The price of oil recently went from $7.80 to$10.40 per case of quarts. Find the ratio of the increase in price to the original p
Bingel [31]
Hello,

When you are looking for a ratio, it is simply a fraction.

In the numerator, we will put the amount of the increase which is 10.4 - 7.80 = 2.6.
In the denominator, we will put the original price of $7.80.

This gives us the ration of 2.6/7.8 or just 0.33 if we divide.
We can say there was a 33% increase (or one-third).


I hope this helps, Good luck!
MrEquation
7 0
3 years ago
PLEASE HELP .
Dima020 [189]
The answer is altitude. The answer is altitude because altitude goes straight up.
6 0
3 years ago
Find the value of X. Round to the nearest tenth.
denis23 [38]

Answer:

If should be 10.4 for c and -3558.4 for the total answer

Step-by-step explanation:

By using the theorem

a ^{2}  + b^{2} = c^{2}

You will get 10.4.

Now plugging that number to that other formula, I got -3558.4

Hope this helped

4 0
3 years ago
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