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mr_godi [17]
3 years ago
10

I need help on ten pls help and explains pls and thank u

Mathematics
2 answers:
Butoxors [25]3 years ago
6 0
The third option is correct
valentinak56 [21]3 years ago
3 0

Answer:

C

Step-by-step explanation:5 days times how much she works per day need to be at least or greater than 240 hence why the sign is greater than or equal too.

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4 1/2 divided by 2 3/8
Yuki888 [10]
First you make them mixed numbers:
9/2 ÷ 19/8
Then you flip the second fraction around
9/2 ÷ 8/19
Then you change ÷ to ×
9/2 × 8/19
And then multiply across!
72/38 = 1 34/38 = 1 17/19 (the final answer)
Hope this helps!
3 0
3 years ago
Please help ill mark brainlyst please
kozerog [31]

Answer:

x = 8°

y = 21°

Step-by-step explanation:

27 + 3y = 90

3y = 63

y = 21°

x + 8x + 18 = 90

9x = 72

x = 8°

3 0
3 years ago
What expressions are equivalent to 3 and 7tenths ​
rewona [7]

Answer:

3 7/10 = 37/10

Step-by-step explanation:

8 0
3 years ago
An equation is shown below:
Alex787 [66]
Multiply 4 with (2x-5)
8x-20+15=11
add 20 both sides
8x+15=31
subtract 15 both sides
8x=16
divide both sides by the x (8)
x=2
4 0
3 years ago
Worker A finishes the job in 10 hours; worker B finishes it in 12 hours, and worker C finishes it in 15 hours.
nika2105 [10]
A=1/10, b=1/12, c=1/15  (these are the rates for each worker...)

1.)

2(1/10)+4(1/12)+t/15=1

1/5+1/3+t/15=1

(3+5+t)/15=1

3+5+t=15

8+t=15

t=7

So it would take c 7 hours to finish the job.

2.)

1/40-1/60

(3-2)/120

1/120

The drain rate is 1/60.  So you will need to find t when the tank is empty, while starting at 2/3 capacity...

2/3-t/60=0

(40-t)/60=0

40-t=0

t=40

It would take 40 minutes to empty the tank when it is 2/3 full.
5 0
4 years ago
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