Answer:
x = days he reads for 4.5 hours = 1 day
y = days he reads for 3.5 hours = 6 days
Step-by-step explanation:
Let
x = days he reads for 4.5 hours
y = days he reads for 3.5 hours
x + y = 7 (1)
4.5x + 3.5y = 25.5 (2)
From (1)
x = 7 - y
Substitute x = 7 - y into (2)
4.5x + 3.5y = 25.5 (2)
4.5(7 - y) + 3.5y = 25.5
31.5 - 4.5y + 3.5y = 25.5
- 4.5y + 3.5y = 25.5 - 31.5
-y = -6
y = 6
Substitute y = 6 into (1)
x + y = 7 (1)
x + 6 = 7
x = 7 - 6
x = 1
x = days he reads for 4.5 hours = 1 day
y = days he reads for 3.5 hours = 6 days
Answer:
I hope you can see my writing clearly
Answer:
1.2
Step-by-step explanation:
it's 1.2 because
the marked parts on the number line represent a fraction of the whole
so in writing this
it will be decimals
and wen the marked lines between 0 and 1 are counted it is 4
so starting each marked line represent 2
so
0.2,0.4,0.6,0.8,1,1.2,1.4,......
so from 1 the next marked part is 1.2
so the answer is <u>1.2</u>
The area of number four, the hexagon, is 841.78.
Hope this helps!
