Here, we are required to find how many hours per week does Lindsey need to study if she wants to have an average of at least 90
Lindsey needs to study for at least 15.25 hours to have an average of 90
Given expression:
4(h + 11) – 15
Where,
h = number of hours
For Lindsay to have at least 90
4(h + 11) – 15 = 90
open parenthesis
4h + 44 - 15 = 90
4h + 29 = 90
4h = 90 - 29
4h = 61
Divide both sides by 4
h = 61/4
h = 15.25 hours
Therefore,
Lindsey needs to study for at least 15.25 hours to have an average of 90
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If the GCD of two numbers is 11 and their LCM is 220 and one of the number is 55, then the second number is 44
The one number = 55
Consider the second number as x
GCD is the greatest common divisor
LCM is the least common multiple
The greatest common divisor of two numbers = 11
The least common multiple of two numbers = 220
We know
The product of two numbers= The product of GCD and LCM
55 × x = 11 × 220
55x = 2420
x = 44
Hence, If the GCD if two numbers is 11 and their LCM is 220 and one of the number is 55, then the second number is 44
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Answer:
-2, 1, 4.
Step-by-step explanation:
The given equation is
It can be written as a system of equations.
Plot the graph of these equation on a coordinate plane as shown below.
From the graph it is clear that the graph of both curves intersect each other at (-2,4), (1,-5) and (4,40).
The x-coordinates of intersection points are -2,1 and 4. It means, the given equation is true for -2,1 and 4.
Therefore, the zeroes of given equation are -2,1 and 4.
You multiply 11 x 3 x 2 And the answer is 66.
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