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Nitella [24]
2 years ago
6

Math

Mathematics
1 answer:
True [87]2 years ago
7 0

Answer:

22.5 mpg

Step-by-step explanation:

450/20 = 22.5

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What is this- 5(-2xy) simplfied?
sukhopar [10]

Answer:

10xy

Step-by-step explanation:

-5(-2)=10

6 0
2 years ago
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LaShawn earned $60.00 for working 8 hours this weekend. What is the total amount of money LaShawn would earn for working 34 hour
lora16 [44]

To find this answer we have to do these steps below

1. Find the amount of money that LaShawn earns in an Hour

We have to do 60/8 which is 7.5

LaShawn earns 7.5 dollars in an hour

2. Multiply 7.5 by 35

The answer to that is 262.5 dollars

Therefore the answer is 262.5 dollars

I hope this helped, if it's wrong, blame me

Ps. Brailents would help a LOT

7 0
2 years ago
A random variable x takes four possible values, 0, 2, a, and b, where a and b are unknown numbers. if pr[x = 0] = 0.2, pr[x=2] =
Alexus [3.1K]
\displaystyle\sum_{x\in\{0,2,a,b\}}\mathbb P(X=x)=1
\mathbb P(X=0)+\mathbb P(X=2)+\mathbb P(X=a)+\mathbb P(X=b)=1
0.2+0.4+0.3+\mathbb P(X=b)=1
\implies\mathbb P(X=b)=0.1

\mathbb E(X)=\displaystyle\sum_{x\in\{0,2,a,b\}}x\mathbb P(X=x)=2.8
0\mathbb P(X=0)+2\mathbb P(X=2)+a\mathbb P(X=a)+b\mathbb P(X=b)=2.8
0.8+0.3a+0.1b=2.8
0.3a+0.1b=2

a+b=6\implies0.3a+0.1b=0.2a+0.1(6)=2
0.2a+0.6=2\implies0.2a=1.4\implies a=7
7 0
3 years ago
3( x + 4y + 6) - 2(x + 8y + 3).​
ser-zykov [4K]

Answer:

x-4y+12

Step-by-step explanation:

4 0
2 years ago
Simplify the expression.<br> -1 + (-3) - (-5) =
Mashcka [7]

Answer:

=-1)+(-3)-(-5)

=-1-3+5

=-4+5

=1

Step-by-step explanation:

answer is to your question is 1.

5 0
2 years ago
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