Answer:
B
Step-by-step explanation:
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Answer:
<em>The single percentage change is 27.46%</em>
Step-by-step explanation:
<u>Percentage</u>
Suppose x is the initial number. It will be decreased by 7%.
(7/100)x=0.07x
x - 0.07x = 0.93x
This last number will be decreased by 22%.
0.93x*(22/100)=0.2046x
0.93x-0.2046x=0.7254x
The last number is 72.54% of the initial number. This is equivalent to a single decrease of:
100% - 72.54% = 27.46%
The single percentage change is 27.46%
Answer:Holly drank 12 bottles in a week.
Step-by-step explanation:
First change the fraction 1 2/5 litre into a decimal, by doing this, we can know how many litres are there in 2/5.
So= 1 2/5
= 2 ÷5 = 0.4
= 1 + 0.4 = 1.4 liters
1.4 liters is the amount of water in a bottle.
Next, also change the fraction 2 2/5 litres into a decimal.
So=2 2/5
= 2÷5 = 0.4
= 2 + 0.4 = 2.4 liters
She drinks 2.4 liters a day.
To find how many bottles she drank in 1 week, we must multiply the amount of water she drinks in a day to the days in a week.
So= 1 week= 7 days
= 1 day= 2.4 liters
So= 2.4 × 7 = 16.8
She drinks 16.8 in a week.
To find how much bottles she drank in a week, we must divide the amount of liters she drank in one week to the amount of liters are there in a bottle.
So= 16.8 ÷ 1.4= 12 bottles
Holly drinks 12 bottles in a week.
I hope this helps! I'm sorry if it's wrong and complicated.
The squared term and the function are symmetrical about the value of x that makes (x+5)^2 = 0. That value is ...
D. x = -5
