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AVprozaik [17]
3 years ago
6

5.2/3.5 = y/7.5 what does y equal

Mathematics
1 answer:
mezya [45]3 years ago
6 0

Answer:

b

Step-by-step explanation:


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The sum of a number and its reciprocal is 41/20. Find the number. smaller value larger value
Natali [406]

Step-by-step explanation:

Let the number is x. Its reciprocal will be 1/x. According to given condition, we get :

x+\dfrac{1}{x}=\dfrac{41}{20}\\\\\dfrac{x^2+1}{x}=\dfrac{41}{20}\\\\20x^2+20=41x\\\\20x^2-41x+20=0

It is a quadratic equation. The values of x are :

20x^2-25x - 16x+ 20 =0\\\\5x(4x - 5) -4( 4x - 5) = 0\\\\(5x-4)(4x-5)=0\\\\5x-4=0\ \text{and}\ (4x-5)=0\\\\x=\dfrac{4}{5}\ \text{and}\ x=\dfrac{5}{4}

The smaller number is 4/5 and the larger number is 5/4.

6 0
3 years ago
Jackson says he has an odd number of model cars. He has 6 cars on one shelf and 8 cars on another shelf. Is Jackson correct? Exp
Kisachek [45]
<span>No Jackson incorrect because 6&8even number 6+8=14 even.</span>
7 0
3 years ago
Identify the coefficient in the expression x + 4.<br> A x<br> B 1<br> C 0<br> D 4
Hunter-Best [27]

Answer:

1

Step-by-step explanation:

The coefficient is the number in front of the variable.  Since there is not a number written, there is an implied 1

x+4

1x+4

The coefficient is 1

5 0
3 years ago
What is the inverse of the function f(x) = x + 3​
xenn [34]

Answer:

the answer would be f(x)=x-3

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
1. Determine if the two expressions are equivalent and explain your reasoning.
Elena-2011 [213]
1. Yes because of the constant and coefficient if you add it. Like the answer is 5m +4.

6 0
3 years ago
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