Answer:
It increased by 20.6%
Step-by-step explanation:
Since a temperature was not provided, I chose a random number: 5. I then increased it by 5% & then again by 20%. Then compared the resulting temperature to the original temperature to see how much it had increased by overall.
5×.05=.25
5+.25=5.25
5.25×.20=1.05
5.25+1.05=6.3
5/6.3=.794
The original temperature (5) was 79.4% of the temperature after increase (6.3). Meaning it raised by 20.6%
(100-79.4=20.6)
I'm not sure if this is how your teacher would like you to solve it, but this is how I solved it.
Multiplication is always the same. A huge help is using a calculator. In year 3 you work on times tables, I think. If you have trouble with a specific question please elaborate.
105%= 1.05
Let p= the price of the jacket without the tax.
1.05p= 31.50
p= 30
Therefore the price of the jacket without the sales tax is $30.
Answer:
1000 meters is 1 kilometer so...
At total he biked 6 kilometers, 200 meters
Lets x is the 1st consecutive even integers
x +2 :the 2nd consecutive even integers
x +4: the 3rd consecutive even integers
So sum of all 3 equals -78 then
x + (x+2) + (x+4) = -78
x + x + 2 + x + 4 = -78
Simplify
3x + 6 = -78
Subtract (-6) to both sides
3x +6 -6 = -78 - 6
Simplify
3x = -84
Divided both sides by 3
3x/3 = -84/3
x = -28
x + 2 = -28 + 2 = -26
x +4 = - 28 + 4 = -24
Double check: -28 + -26 + -24 = -78
So the three consecutive even integers are: -24, -26, -28
The smallest integer would be -28
