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Serjik [45]
3 years ago
11

Does anyone know if this is correct

Mathematics
2 answers:
bazaltina [42]3 years ago
8 0
Number 4 is wrong, the correct answer is 30,000
number 6 is wrong, the correct answer is 720
number 7 is wrong, the correct answer is 18,000
the rest are correct
malfutka [58]3 years ago
8 0
Check number 7 it's 18000
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An elevator descends into mine shaft at the rate of 6m/min. If the descend starts from 10m above the ground level , how long wil
AnnyKZ [126]

Answer: Hi!

So first, I'm going to convert "350 below ground level" to -350, as this is what "below ground level" represents.

Now, we should find the total distance traveled. Take the absolute value of -350 (350) and add it to 10, the metres above ground level. This is 360.

We already know the rate of travel; 6m/min. All we have to do now is divide the total distance (360) by the rate of travel (6)!

360 ÷ 6 = 60

So, it took 60 minutes, or one hour, for the elevator to travel down the shaft!

Hope this helps!

6 0
2 years ago
5.Karen is thinking of a number. If she multiplies her number by −3 and then adds 6, she has −4 times the original number. What
alekssr [168]

-3x+6 = -4x

6 = -x

x = -6

check:

-6*-3 = 18 +6 =24

-6*-4 = 24

 number = -6


5 0
2 years ago
Monty documented the amount of rain his farm received on a monthly basis, as shown in the table.
hammer [34]

Answer:

No

Step-by-step explanation:

Because we need to see the table and information provided on the table otherwise we can't help you solve your problem.

5 0
3 years ago
The sum of j and 7 is 55. Solve for j.??
pogonyaev
J = 48 bc 48 + 7 = 55
7 0
2 years ago
Read 2 more answers
Please help will give brainliest.
Viefleur [7K]

Answer:

D

Step-by-step explanation:

a is false since x could be 0.

b is easy to check, just plug numbers in, and we can see that it's false(you would get 0+0=1 and -0-0=-1 once plugged in)

c is also easy to check, just plot the line or simplify the first equation. since (2x+2y)/2=4/2 is also x+y=2, the second equation is also x+y=2, so it must have infinitely many solutions.

d must be true due to process of elimination but let's check to make sure.

7y=14x, divide both sides by 7 to get y=2x and since they're the same equation it must mean that they have infinitly many solutions and we can see that it is correct

4 0
3 years ago
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