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seropon [69]
2 years ago
13

3/5 + 7/10 + ¾ what is the answer

Mathematics
1 answer:
Sever21 [200]2 years ago
6 0

Answer:

2 1/20

Step-by-step explanation:

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the music booster sell 322 music buttons and raise $483 for the music departemen how much does each button cost
nirvana33 [79]
<span>483 / 322 = 1.5. $1.5 is the cost for one button. Hope this helps. :)</span>
6 0
2 years ago
Read 2 more answers
How do you complete it
Naya [18.7K]
U^2 + 2 (u) (5/2) + 25/4 = (u +5/2)^2

answer is B. 25/4
8 0
3 years ago
Find 2 positive real numbers that differ by 1 and have a product of 1
velikii [3]
A) x -y =1
B) x * y =1
B) y = 1/x

A) x -(1/x) = 1
Multiplying both sides by "x"
A) x^2 -1 = x
A) x^2 -x -1 = 0

Solving by the quadratic formula
x = 1.618 and
y = .618

Interestingly, the number 1.6180339... is called the "phi ratio" or the "golden ratio".
https://en.wikipedia.org/wiki/Golden_ratio




6 0
3 years ago
Iq scores are normally distributed with a mean of 100 and a standard deviation of 15 what is the probability that a randomly sel
a_sh-v [17]
So we are given the mean and the s.d.. The mean is 100 and the sd is 15 and we are trying the select a random person who has an I.Q. of over 126. So our first step is to use our z-score equation:

z = x - mean/s.d.

where x is our I.Q. we are looking for

So we plug in our numbers and we get:

126-100/15 = 1.73333

Next we look at our z-score table for our P-value and I got 0.9582

Since we are looking for a person who has an I.Q. higher than 126, we do 1 - P. So we get

1 - 0.9582 = 0.0418

Since they are asking for the probability, we multiply our P-value by 100, and we get 

0.0418 * 100 = 4.18%

And our answer is

4.18% that a randomly selected person has an I.Q. above 126
Hopes this helps!
6 0
3 years ago
Help is greatly appreciated:)
Murrr4er [49]
Well there are 6 units down and 11 units across so 6•11=66. there are 14 red units. 66-14=52. the area of yellow is 52.
4 0
2 years ago
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