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Usimov [2.4K]
3 years ago
6

In estimating what does 2 1/2 round up to

Mathematics
1 answer:
777dan777 [17]3 years ago
6 0
2.5 rounds up to 3. Because the digit after the decimal point is 5 or more.
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Please help me plz I need help
oksian1 [2.3K]

Answer:

a) Speed of the cyclist is (2.75/0.4) = <u>6.875 miles per hour</u>.

b) It will take (5.5/6.875) = <u>0.8 hours</u> to travel 5.5 miles at this rate.

  • Remember: Speed=Distance/Time
5 0
2 years ago
How do you solve these equations using elimination
lara31 [8.8K]
I think this is right
I hope this helps u

5 0
3 years ago
There is an animal farm where chickens and cows live. All together, there are 84 heads and 210 legs. How many chickens and cows
Ira Lisetskai [31]

1 Chicken have = 2 legs

1 Cow have = 4 legs

No of cows = x

No of chickens = y

Total no of legs = 4x + 2y = 210.............(1)

Total No of heads = x + y = 84................(2)

x = 84 - y....( from (2) )

Substituting the above equation in (1)

4 ( 84 - y) + 2y = 210

336 - 4y + 2y = 210

336 - 2y = 210

-2y = -126

= y = 63

No of cows = 84-63 = 21

∴ <u><em>Total no of cows = 21</em></u>

<u><em>Total no of chickens = 63</em></u>

5 0
2 years ago
The parking lot has a total of 60 cars and trucks. The ratio of cars to trucks is 7:3.
Mumz [18]
60
7:3
7+3=10
60/10=6
6*7=42
6*3=18
42 cars
18 trucks
5 0
3 years ago
Read 2 more answers
Identify the property or rule shown by each equation. 9 divided 1 =9 and 33 times 1 =33
kicyunya [14]

identity property=something times one
5 0
3 years ago
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