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aleksandrvk [35]
3 years ago
15

Robin can clean 72 rooms in 6 days

Mathematics
2 answers:
pentagon [3]3 years ago
8 0

Answer:

B

Step-by-step explanation:

Number of rooms to be cleaned in 6 days = 72

Number of rooms to be cleaned in 1 day = 72 ÷ 6 = 12

Number of rooms to be cleaned in 9 days  = 12 * 9 = 108 days

lozanna [386]3 years ago
6 0

Answer:

B

Step-by-step explanation:

6/2*3=9

so 72/2*3= 108

so B

if my answer helps please mark as brainliest.

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3. Suppose the mystery bag had resulted in the following number of red chips. Using the simulated sampling distributions found e
Vinvika [58]

Answer:

a) 0.172

b) 0.167

c) 0.1404

Step-by-step explanation:

Margin of error, E = 2\times\sqrt{\frac{p(1-p)}{n}}

here,

p = probability of the event

n = sample size

a) n = 30

p = 10 ÷ 30 = 0.333

Therefore,

E = 2\times\sqrt{\frac{0.333(1-0.333)}{30}}

= 2 × 0.0861

= 0.172

b)  n = 30

p = 21 ÷ 30 = 0.7

Therefore,

E = 2\times\sqrt{\frac{0.7(1-0.7)}{30}}

= 2 × 0.0836

= 0.167

c) n = 30

p = 22 ÷ 50 = 0.44

Therefore,

E = 2\times\sqrt{\frac{0.44(1-0.44)}{50}}

= 2 × 0.0702

= 0.1404

3 0
3 years ago
Each carton 12 eggs. There are 2 full cartons in the refrigerator. Margot uses 3 eggs to make a quiche. How many eggs are left.
3241004551 [841]

Answer:

Answer: There are 21 eggs left.

Step-by-step explanation:

One carton has 12 eggs.

2 cartons are two times one carton, so two cartons have 2 times 12 eggs.

2 * 12 = 24

There are 24 eggs in two cartons.

Margot uses 3 eggs. We subtract 3 eggs from 24 eggs.

24 - 3 = 21

Answer: There are 21 eggs left.

6 0
4 years ago
Can anyone pls help with this ASAP!!! :((
MrRissso [65]

Answer: I believe your answer is C.

7 0
3 years ago
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3 years ago
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konstantin123 [22]
3.35 *100 =335%
Hope it’s help
7 0
3 years ago
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