For 1 hour:
- Jennifer can clean 1/2 of her room;
- John cal clean 1/5 of her room.
Both can clean: 1/2 + 1/5 = 5/10 + 2/10 = 7/10
1 hour -------- 7/10
x hours---------- 1
x = 1 : 7/10 = 10/7 h = 1.42857 h ( or 1 h 25 min 43 s )
Answer:
4.2π cm ≈ 13.19 cm
Step-by-step explanation:
The length s of an arc of a circle with radius r and central angle θ (in radians) is ...
s = rθ
Here, we have ...
s = (5.6 cm)(3π/4) = 4.2π cm ≈ 13.19 cm
Answer:
418
Step-by-step explanation:
fig 2 = fig 1 + 5
fig 3 = fig 2 + 7 or fig 1 +5+7 16
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
4+5+7+9+11+13+15+17+18+19+21+23+25+27+29+31+33+35+37+39
Answer: Square root of 16 is +4 or -4. Since -4 is not a natural number, the square root can be described as an integer.
Step-by-step explanation:
The square root of 16 is a rational number. The square root of 16 is 4, an integer
