Answer:
7d+11
Step-by-step explanation:
Pretty much just addition.
3d+4d+2+9
(3d+2)+(4d+9) = 7d+11.
Answer:
Step-by-step explanation:
12: 8,700
13: 42
14: 70,000
15: 5,000,000,000
16: 2,210
17: 34,100
18: 1,650
19: 149
20: 290,000
The equation is:
2/3n + 4 = 7
Answer:
4
Step-by-step explanation:
We know 100 centimeters = 1 meter.
We know the plant grows 10 cm in 1 week.
100 - 60 = 40.
40 cm remaining / 10 cm per week = 4 weeks.
Answer:
263.76
Step-by-step explanation:
Assuming the shaded area is the yellow area all we must do is find the area of the small circle and subtract it from the larger circle.
To do this we can use the area of a circle equation:

first we need to find the radius of the large circle which is simply 4+6= 10
so the area would be:

then we find the area of the small circle is

next we evaluate:

Then replace pi with 3.14:
84 · 3.14 = 263.76
And you have your answer!
Hope this helps!