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dimulka [17.4K]
3 years ago
6

Solve Only estimation​

Mathematics
2 answers:
PtichkaEL [24]3 years ago
5 0

Answer:

3a)1680

b)2620

4a)2130

b)13300

c)460

d)7540

Step-by-step explanation:

3a)1500+180

b)2800-170

4a)1800+330

b)7300+6000

c)670-210

d)8000-460

rjkz [21]3 years ago
4 0

Answer:

a) 1600

b) 2600

c) 2200

d) 13200

e) 500

Step-by-step explanation:

a) 1463 + 179

1400 + 200

1600

b) 2806 - 176

2800 - 200

2600

c) 1831 + 329

1900 + 300

2200

d) 7345 + 5893

7300 + 5900

13200

e) 665 - 213

700 - 200

500

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2=2(2)+6
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Convert the following numbers of calories or
kap26 [50]

Answer:

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Step-by-step explanation:

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  1 calorie = 4.184 J

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a. 7845 cal = 7845·4.184 J = 32,823 J = 32.823 kJ

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c. 62.142 kcal = 62.142·4.184 kJ = 260.00 kJ

d. 43,024 cal = 43,024·4.184 J = 180,012 J = 180.012 kJ

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* The thermochemical calorie is defined in terms of the heat capacity of water. An international calorie of 4.1868 J is defined in terms of energy, without respect to the heat capacity of water.

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3 years ago
4(2x+1)<br><br>What is the answer??????¿​
Assoli18 [71]

Answer:

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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8 0
3 years ago
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