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Kobotan [32]
4 years ago
15

PLEASE HELP FAST HURRY!!!!!!!!!!!!!!!!!!PLEEEEEEEEEEEEASE

Mathematics
2 answers:
myrzilka [38]4 years ago
7 0
<span>2/5(10x - 10y) - 3/4(12x - 24y)
=4x - 4y - 9x + 18y
= -5x + 14y

answer is </span><span>A) -5x + 14y </span>
Anestetic [448]4 years ago
7 0

Answer:

A) −5x + 14y

Step-by-step explanation:

2 /5 (10x - 10y) -  3 /4 (12x - 24y)

Use the distributive property:

4x - 4y - 9x + 18y

-5x + 14y

<h2>Hope this helps!!!</h2>
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Semmy [17]

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The true statements are

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x -5 -3 0 2 6 7 9 10 13

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4 0
3 years ago
What is 6x+78/67-78x=180+270-567
Sonja [21]

Answer:

15.31

Step-by-step explanation:

solve both sides separately

6x+78/67-78x

x cancles out

becomes 84/-11

becomes -7.64 rounded

180+270-567

becomes -117

moves -7.64 to other side (divide by other side)

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8 0
2 years ago
Amy invites 800 people to her pool
antiseptic1488 [7]

Answer:

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Step-by-step explanation:

4 0
3 years ago
A company needed to downsize one department having 25 people consisting of 11 women and 14 men. Eight people were laid off, and
Maksim231197 [3]

Answer:

The probability that 6 or more women would be laid off is P=0.08.

Step-by-step explanation:

In this case, we have a group of people and a proportion of women and men. We can think of the people laid off as a random sample taken from the population (all employees of the department).

The right model to represent that is with a binomial distribution. In this case, the sample size is n=8 and the probability of picking a woman is p=0.44.

According to this model, the probability that 6 or more women, out of 8 persons, would be laid off is:

P(x\geq6)=1-(P(0)+P(1)+P(2)+P(3)+P(4)+P(5))\\\\ P(0)=\binom{8}{0}p^0(1-p)^8=1*1*0.01=0.01\\\\ P(1)=\binom{8}{1}p^1(1-p)^7=8*0.44*0.02=0.06\\\\ P(2)=\binom{8}{2}p^2(1-p)^6=28*0.19*0.03=0.17\\\\ P(3)=\binom{8}{3}p^3(1-p)^5=56*0.09*0.06=0.26 \\\\ P(4)=\binom{8}{4}p^4(1-p)^4=70*0.04*0.1=0.26 \\\\ P(5)=\binom{8}{5}p^5(1-p)^3=56*0.02*0.18=0.16

P(x\geq6)=1-(0.01+0.06+0.17+0.26+0.26+0.16)\\\\P(x\geq 6)=1-0.92=0.08

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=18%20-%204%20%20%5Cdiv%20%20%7B2%7D%5E%7B2%7D%20%20%5Ctimes%2010" id="TexFormula1" title="18 -
Vinvika [58]
The answer is 8
Order of operations:(Please Excuse My Dear Aunt Sally)
Parentheses
Exponents
Multiplication
Division
Add
Subtract
When it comes down to multiplication and division you do whichever comes first , left to right same with add and subtract so..
Step1: 2 squared = 4
Step2: 4/4=1
Step3: 1x10=10
18-10=8 . Final answer is 8
7 0
3 years ago
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