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Sever21 [200]
2 years ago
6

Is (0, 2) a solution to the equation y = 7x?

Mathematics
2 answers:
o-na [289]2 years ago
6 0

Answer:

no

Step-by-step explanation:

when x is 0, y is also 0. the ordered pair for this is (0,0). y cannot be 0 and 2 at the same time, so (0,2) is not a solution,

jeka942 years ago
4 0

Answer:

No

Step-by-step explanation:

x = 0

y = 2

y = 7x

2 = 7(0)

2 ≠ 0

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Five numbers has a mean of 12. When one (1) number is removed the mean is 11. What is the value of the number removed?
bonufazy [111]

Answer:

16

Step-by-step explanation:

The mean of a group of values is calculated as

mean = \frac{sum}{count}

Given 5 numbers with a mean of 12, then

\frac{sum}{5} = 12 ( multiply both sides by 5 )

sum = 60

let the number removed be x , then

\frac{60-x}{4} = 11 ( multiply both sides by 4 )

60 - x = 44 ( subtract 60 from both sides )

- x = - 16 ( multiply both sides by - 1 )

x = 16

The number removed was 16

6 0
3 years ago
Alex has collected apples. It has 40 boxes of 8.5 kg each and 6 sacks of 90kg each. Pack the apples in bags of 2.5 kg each. how
zimovet [89]

Answer:

40*8.5=340

6*90=540

total=880/2.5=352bags

3 0
3 years ago
Please explain step by step for 0.67÷0.3=?
pentagon [3]
Multiply each of the numbers by a ten to a power that they both become whole numbers.

0.67 * 10^2 = 67
0.3 * 10^2 = 30

Divide as usual.

67 / 30 = 2 \frac{1}{3}

So, the answer is 2 1/3.
3 0
3 years ago
A laundry basket contains 18 blue socks and 24 black socks. What is the probability of randomly picking 2 black socks, without r
lisov135 [29]
P(black socks): 24/42 or 12/21
P(black socks without replacing): 23/41. As a result, the probability of randomly picking 2 black socks, without replacement, from the basket is 12/21×23/41=276/861 or 32%. Hope it help!
6 0
3 years ago
Sin2x=____. a. 2 cos^2 x-1 b. (1-cos 2 x)/2 c. 2 sin x cos x d. sin^2x cos^2 x
Doss [256]

Answer:

C. 2 sin x cos x

7 0
3 years ago
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