find five consecutive even integers if the sum of the first and fifth is 2 less than 3 times the fourth.
1 answer:
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Answer:
A: 85%, 2, 3.24,
B: covert numbers into percent
Step-by-step explanation:
<u>Part A</u>
We have:
, 2
, 85%, 3.24 --> let's convert them into percentages like the 85, to determine which one is greatest/least:
85% --> 85% (already a percent)
--> to convert into percent: (19÷4) x 100 = 475%
2 --> convert first into improper fraction then into percent: (11/5) x 100 = 220%
3.24 --> multiply by 100: 3.24 x 100 = 324%
From least to greatest: 85%, 220%, 324%, 475%
= 85%, 2, 3.24,
Part B:
In part A, to determine the numbers from least to greatest, we rewrote the numbers all into percentage form by first converting into decimal form and then multiplying by 100.
Answer:
86 cm²
Step-by-step explanation:
<u>1) Calculate the area of the square</u>
Therefore, the area of the square is 400 cm².
<u>2) Calculate the area of the circle</u>
we can substitute with 3.14. To find the radius, we divide the diameter of the circle by 2. 20 cm is the diameter of the circle, so therefore, its radius is 10 cm.
Therefore, the area of the circle is 314 cm².
<u>3) Subtract the area of the circle from the area of the square</u>
Therefore, the area of the shaded region is 86 cm².
I hope this helps!