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3 years ago

What is “3(2d-1)-2d=4(d-2)+5” ?

Mathematics

2 answers:

trapecia [35]3 years ago

5 0

Answer:

Infinite solutions

Step-by-step explanation:

3(2d-1)-2d=4(d-2)+5 | Given equation

6d - 3 - 2d = 4d - 8 + 5 | Distribute

4d - 3 = 4d - 3 | Combine like-terms

4d = 4d

Infinite solutions, the terms are equal.

alukav5142 [94]3 years ago

5 0

Answer:

simplified answer:

6d - 3 - 2d = 4d - 6 + 5

4d - 3 = 4d - 11

if that is not what your looking for:

8d + 8

8d - (-8)

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Step-by-step explanation:

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A person’s theoretical maximum heart rate (in heartbeats per minute) is 220 - x where x is the person’s age in years (20 ≤ x ≤ 6

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Let f(x) represents the heart beat of the person.

Now, we have been given that person’s theoretical maximum heart rate is given by 220 - x.

Also, we have been given that person strive for a heart rate that is at least 50% of the maximum. At least means greater than equal to.

Thus, we have

$f(x)\geq (220-x)0.5\\
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