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murzikaleks [220]
3 years ago
7

How do u estimate ur answer

Mathematics
1 answer:
Nostrana [21]3 years ago
3 0
So basically to estimate your answer, you must
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Help me please 38 points!!!
Anon25 [30]

Answers:

1. 10*5 =50

2. \frac{1}{2} *4*3=2*3=6

3. 10*3*10=30*10=300

4. 2(5)+2(7)=10+14=24

5. 4*2^{2} =4*4=16

6. 7*8*2=56*2=112

7. 1.3*15=\frac{13}{10}*15=19.5

8. 3(6+11)=3*17=51

9. \frac{45}{5} =\frac{5*9}{5} =9

10. 2*14^{2} =2*196=392

11. 5*12*7=60*7=420

12. \frac{1}{2} *9*12=\frac{12}{2} *9=54

13. \frac{1}{2}(24)(9+21)=12*30=360

14. 14*13=182

15. 16*8*5=128*5=640

16. \frac{75}{5}=\frac{5*15}{5}=15

17. 2(5^{2} )=2*25=50

18. 8(2.5+4.2)=8*6.7=53.6

19. \frac{1}{2} (3)(5+6)=1.5*11=16.5

20. 3*14(6^{2} )=3*14*36=42*36=1,512

5 0
3 years ago
Read 2 more answers
✓ 10
liraira [26]

Answer:

Decrease in dollars is $555.00, $6845.00 was in his account at the end of last year.

Step-by-step explanation:

7400 times 7.5/100

=74 times 7.5

=$555.00

7400-555=$6845.00

7 0
3 years ago
Juan baked 250 cookies in 2 hours, How many cookies can he make in 1 minute?
dybincka [34]

Answer:

I would say 2 because the decimal I came out with was 2.09

Step-by-step explanation:

8 0
3 years ago
There are 12 boys in a math class. The total number of students s depends on the number of girls in the class g. write an equati
Pani-rosa [81]
12 + g = s
12 boys + g girls = s students
5 0
3 years ago
SelectTWO expressions that are equivalent to 8(x + 5y).
JulsSmile [24]

Answer:

The bottom two

8 0
2 years ago
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