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Zanzabum
3 years ago
11

Is (4, -1) the solution of the system of equations shown below?

Mathematics
2 answers:
serious [3.7K]3 years ago
5 0

Answer:

yeah

Step-by-step explanation:

saveliy_v [14]3 years ago
4 0
That’s correct! Hope this helps
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A merchant bought 30 dozen pairs of gloves. How many individual gloves did the merchant buy? A-720 B-420 C-300
sdas [7]

A-720

30x12x2

There are 30 dozen, a dozen means twelve. 30 times 12 is 360. There are 360 pairs of gloves. A pair means 2. 360 pairs times 2 gloves in a pair equals 720.

7 0
3 years ago
this year the winner of the New York Marathon ran the 8 km event in 24 minutes what is the runners unit rate
yan [13]
1 km every 3 minutes
7 0
3 years ago
An animal park has lions,tiger an zebras.2/5 of the animals are lions and 3/10 of the animals are zebras. what percentage are ti
maksim [4K]

Answer:

3/10

Step-by-step explanation:

You have to make them the same fraction.

2/5 = 4/10

3/10 =3/10

3/10 + 4/10 = 7/10

10/10 - 10/10 =3/10

3/10 is the amount of tigers.

4 0
2 years ago
Please help me with this question I don’t quite get it
sp2606 [1]
100 times 80 =8000.
4 0
2 years ago
Read 2 more answers
A recent survey found that 7575​% of all adults over 50 wear glasses for driving. In a random sample of 4040 adults over​ 50, wh
malfutka [58]

Answer:

Mean = 30

standard Deviation = 2.74

Step-by-step explanation:

Formula

mean = np

Standard Deviation = \sqrt{npq}

from the question = 40

P = 75% or 0.75

q = 1 - p = 1 - 75% or 1 - 0.75

To find mean

mean = 40 x 0.75

           = 30

For Standard Deviation (SD)

Standard Deviation = \sqrt{npq}

       = \sqrt{40 X 0.75 X 0.25

      = \sqrt{7.5}

:. Standard  Deviation       = 2.74

5 0
3 years ago
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