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Yuki888 [10]
3 years ago
10

Choose the ordered pair (x,y) that is a solution of the question 9x+5y=82

Mathematics
1 answer:
hjlf3 years ago
8 0
The answer is
x: (82/9,0)
y: (0,82/5)
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5x - Зу = 16<br> х+ Зу = -4
Ratling [72]

Answer:

Step-by-step explanation:

Add the above equations we get

6x=12

x=2

2+3y=-4

3y=-6

y=-2

5 0
3 years ago
Help please dont understand <br><br><br> are you trying to hit on me
LekaFEV [45]

Answer:

I think Mr.G took her lunch!

Step-by-step explanation:

Read the paragraph over again. What kind of behavior stands out?

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3 years ago
A graduate student wanted to estimate the average time spent studying among graduate students at her school. She randomly sample
expeople1 [14]

Answer:

B. The width of the confidence interval would be smaller.

Step-by-step explanation:

By reducing the confidence level from 99% to 95%, the student assumes that there is more uncertainty about the new confidence interval than the previous one. That, being said, since the results aren't as certain, the confidence interval is widened towards a central average point because the new interval isn't as accurate.

Therefore, the answer is B. The width of the confidence interval would be smaller.

3 0
3 years ago
Prove the sum of two rational numbers is rational where a, b, c, and d are integers and b and d cannot be zero.
Savatey [412]

Answer:

Step-by-step explanation:

Since a,b,c and d are integers,

bd, ad and cb are also integers because product of two integers is an integer

Also, ad + cb is an integer because sum of two integers is an integer.

(ad + cb)/bd is a rational number

a/b + c/d is a rational number

6 0
4 years ago
Read 2 more answers
The sum of 86, 68, and 38 is 192. What do you also know about the sum of 68, 38, and 86? Explain
trasher [3.6K]
It's the same because it's used the commutative property where:

a+b = b+a

So, 86+68+38=192 it's the same sum as 68+38+86=192
4 0
3 years ago
Read 2 more answers
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