18x-12= 24x+48= 45x_81= 8x+15=
1 answer:
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Options:
Who is right, and why?
a. Neither Kurt nor Maria is right, because 3,500 should be used instead of 3,600.
b. Kurt is right, because finding 1/5 of 3,600 is not a good way to approximate 21% of 3,585.
c. Maria is right, because finding 10% of 3,600 and multiplying the result by 2 is not a good way to approximate 21% of 3,585.
d. Both Kurt and Maria are right, because 3,585 should be rounded up to 3,600, and 21% of this amount can be approximated by either finding 10% of 3,600 and multiplying the result by 2 or by finding 1/5 of 3,600.
Answer:
d. Both Kurt and Maria are right, because 3,585 should be rounded up to 3,600, and 21% of this amount can be approximated by either finding 10% of 3,600 and multiplying the result by 2 or by finding 1/5 of 3,600.
Step-by-step explanation:
Given
Required [Missing from the question]
Who is correct and why?
First, we calculate the actual amount collected.
--- approximate
Next, determine the estimate (round 3585 to 3600 and 21% to 20%)
Next, calculate Kurt and Maria's estimates
<em>Hence, Kurt and Maria are correct because of option (d)</em>
Answer:
the equation representing total amount of blood donated is .
Step-by-step explanation:
Total number of volunteers = 32
number of volunteers couldn't donate blood = .
So Number of volunteers who donated blood can be calculated by subtracting number of volunteers couldn't donate blood from Total number of volunteers.
Framing in equation form we get;
So, the number of remaining volunteers who donated blood = .
Each of these volunteers donated blood = 470 ml
Now Total Amount of Blood donated is equal to Amount each of these volunteers donated blood times the number of volunteers who donated blood.
Framing in the equation form we get;
total amount of blood donated milliliters =
Hence the equation representing total amount of blood donated is .