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3 years ago

The following data are from a completely randomized design.

1 answer:

5 0

Sorry I need the 2 answers to ask my own. I wouldn’t of understood this wnywyas. Hopefully you find someone who can do it

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Solve for k 5/8(3k+1)-1/4(7k+2)=1

lesya [120]

Answer:

Step-by-step explanation:

$\dfrac{5}{8}(3k+1)-\dfrac{1}{4}(7k+2)=1\qquad\text{multiply both sides by 8}\\\\8\!\!\!\!\diagup^1\cdot\dfrac{5}{8\!\!\!\!\diagup_1}(3k+1)-8\!\!\!\!\diagup^2\cdot\dfrac{1}{4\!\!\!\!\diagup_1}(7k+2)=8\cdot1\\\\5(3k+1)-2(7k+2)=8\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\(5)(3k)+(5)(1)+(-2)(7k)+(-2)(2)=8\\\\15k+5-14k-4=8\qquad\text{combine like terms}\\\\(15k-14k)+(5-4)=8\\\\k+1=8\qquad\text{subtract 1 from both sides}\\\\k=7$

3 0

3 years ago

What is the least common denominator for these two rational expressions n^4/n^2+2n+1,7/n^2-8n-9

sergeinik [125]

Answer:

Step-by-step explanation:

n²+2n+1 = (n+1)(n+1)

n²-8n-9 = (n+1)(n-9)

the least common denominator for these two rational expressions is :

(n+1)(n-9)

7 0

3 years ago

1. Nasim thinks of a number.

mrs_skeptik [129]

Step-by-step explanation:

5x-16 = 3 (10+x)

=> x= 23

7 0

2 years ago

11 7/8 + 3 1/5 - ___ = 15

damaskus [11]

Answer: -4.775

Step-by-step explanation: 11(7/8) + 3(1/5) - (-4.775) = 15

5 0

3 years ago

Kurt earns $7 per hour for doing chores. his goal is to make at least $35 each week

Yuri [45]

Answer:

Step-by-step explanation:

This is what i get what i understand from your question .

Kurt earns $7 per hour for doing chores. his goal is to make at least $35 each week

So ,

$7 =per hr

X= unknown hrs

$35= goal

7 x =35

Divide both sides by 7 to get x alone representing hrs.

X= 35/7

X= 5

So 5 hrs per week to make 35 a week.

5×7=35

35=35

5 0

2 years ago