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maw [93]
3 years ago
11

Machine A can sort 840 pieces of mail per hour, and Machine B can sort 760 pieces per hour. How long will it take both machines

running at the same time to sort 12,800 pieces of mail?
A) 4 hours
B) 6 hours
C) 7 hours
D) 8 hours
Mathematics
2 answers:
julia-pushkina [17]3 years ago
6 0

Answer:

D

Step-by-step explanation:

for 8hours A=6720

for 8hours B=6080

Therefore total is 6720+6080=12800

marin [14]3 years ago
5 0

Answer: D) 8 hours

Step-by-step explanation:

Machine A: 840 an hour

Machine B: 760 an hour

h = hour

840 + 760 = 1600

In an hour, they can both sort 1600 mails.

1600h = 12800

Divide each side by 1600

h = 8

840 * 8 = 6720

760 * 8 = 6080

6720 + 6080 = 12,800

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netineya [11]
For two triangles to be congruent by AAS:
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Now, let's check our options. We will find that:
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angle T = angle A
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3 years ago
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3 years ago
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kolbaska11 [484]

Answer:

22x^2 -10xy + 12x

Step-by-step explanation:

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_________________

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Answer:

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Step-by-step explanation:

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Hi MonkeyJohnny123,

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