2. 7 ÷ 21

1 answer:

7 0

0some of your questions are not exactly right but I had help you round off to 3 sig.fig.

my answer are
1) 0.129
2) 0.117
3)0.2625
4)0.15
5) 0.153
6) 0.211
7) 0.231
8) 0.19
9)0.225
10) 0.418
11) 0.469
12) 0.756

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PLZ HURRY IT'S URGENT!!!

Marrrta [24]

Answer:

D. -3

Step-by-step explanation:

Add all numbers together = -15

then divide by the numbers of numbers = 5

= -3

6 0

3 years ago

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A room is 12m 15m long and 8m 91 cm broad .The floor of the room is tobe paved with squared tiles find the lenght of the largest

Nat2105 [25]

Answer:

81 cm

Step-by-step explanation:

Length of a room = 12m 15cm

Width of a room = 8 m 91 cm

12 m 15 cm = 1200 cm + 15 cm = 1215 cm

8 m 91 cm = 800 cm + 91 cm = 891 cm

The floor of the room is tobe paved with squared tiles. We need to find the length of the largest tile that can be used.

To find it we can find the HCF of 1215 cm and 891 cm.

Prime factorization of 1215 = 3 x 3 x 3 x 3 x 3 x 5

Prime factorization of 891 = 3 x 3 x 3 x 3 x 11

HCF = 3 x 3 x 3 x 3

= 81

Hence, the length of the largest tile that can be used is 81 cm.

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3 years ago

Joe charges $15 per lawn but if a homeowner pays him to do their lawn more than 1 time then he only charges $10 per time. What e

Stella [2.4K]

Answer:

5+10x = total earned

Step-by-step explanation:

15 is the amount for the first lawn, and every lawn per homeowner after that he charges 10 bucks. plug in the number of times he has mowed their lawn for x, and the 5 is like the first time charge

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3 years ago

PLEASE HELP QUICK

Zinaida [17]