From 10 to 15 -> 10 increased with half its size (5), that means increase of 50%
From 16 to 12 -> decrease of 4, which is a quarter of 16, that means a decrease of 25%
First we have to find the median
The median is 19 when we cross off all the numbers
Now we have 11 12 15 16 and 17 in the first quartile
Cross 11 and 12 and cross 16 and 17, off which leaves you with 15
Answer is option d
Answer:
80%
Step-by-step explanation:
28/35 = 0.8
Divide. Convert a decimal to a percent by multiplying times 100.
0.8 × 100 = 80
Tara earned an 80%
You could use a calculator as described above or using mental math or pencil and paper:
28/35 = 4/5
Simplify.
4/5 = 8/10 = 80/100
Percent means per hundred, change 28/35 to hundredths as above.
Tara (still) gets an 80%.
If 2160= 2^a3^b5^c the solution set of a,b,c is<br>{4,3,0}<br>{1,0,3}<br>{4,3,1}<br>{2,3,4}
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Answer:
4,3,1
Step-by-step explanation:
2^a3^b5^c=2160
2^a3^b5^c=2^4 3^3 5^1
a=4,b=3 and c=1
7x - 4 = 31
7x = 31 + 4
7x = 35
x = 35/7
x = 5
4y + 8 = 24
4y = 24 - 8
4y = 16
y = 16/4
y = 4
