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patriot [66]
3 years ago
11

how many phone numbers are possible for the form ABC-XXXX? A is restricted to numbers 3-9 B,C and x can be any digit 1-9.

Mathematics
1 answer:
lakkis [162]3 years ago
7 0
I have no idea but i have a friend ill send over that is good at this stuff
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Helppppppppppppppppppppp
UNO [17]

Answer:

z = 60

Step-by-step explanation:

100+20+z=180

120+z=180

z=60

8 0
3 years ago
For each hour he babysits, Anderson earns $1 more than half of Carey’s hourly rate. Anderson earns $6 per hour. Which equation c
erastovalidia [21]
Carey earns c hourly
Anderson earns $6 hourly which is also 1+ c/2
So, 6=1+c/2
      12=2+c
c=$10
<span>Carey earns $10 hourly</span>
6 0
3 years ago
Read 2 more answers
How you write 980,000 in scientific notation?
MatroZZZ [7]

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

Answer: 9.8 × 10 (4 squared)

3 0
3 years ago
Is 2 hours and 30 minutes more or less than 10% of a day?
belka [17]
10% of the day =10/100×24=2 hours 24 minutes therefore 2 hours 30 minutes is more than 10% of a day
8 0
3 years ago
Please help on this one question
Nonamiya [84]

Answer:

9ab+3a

Step-by-step explanation:

2a*3b=6ab

2a*1=2a

a*3b=3ab

a*1=a

adding everything together=6ab+2a+3ab+a=9ab+3a

3 0
3 years ago
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