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2 years ago

Exactly how many planes contain points J, K, and N? 0 1 2 3

Mathematics

2 answers:

zheka24 [161]2 years ago

7 0

Answer:

Step-by-step explanation:

Only 1 plane can contain a set of 3 points.

Nutka1998 [239]2 years ago

3 0

Answer: 3

Step-by-step explanation:

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Ellen said she spent half her money for lunch and half of what was left for a movie. She now has $1.20. How much did she spend f

goldenfox [79]

Answer: She spend $1.20 for lunch.

Step-by-step explanation:

Let the total amount be 'x'.

Half of her money spend for lunch be $\dfrac{x}{2}$

Half of her money left for a movie be $\dfrac{x}{2}$

Amount she has now = $1.20

So, According to question, it becomes ,

$\dfrac{x}{2}=1.20\\\\x=1.20\times 2\\\\x=\$2.40$

Hence, Amount she spend for lunch is $\dfrac{x}{2}=\dfrac{2.40}{2}=\$1.20$

Therefore, she spend $1.20 for lunch.

8 0

1 year ago

54 equals 9 more than a number t .

aleksandr82 [10.1K]

Answer:

t=45

Step-by-step explanation:

54=t+9

54-9=t

t=45

6 0

1 year ago

Which graph shows the solution to the system of linear inequalities? x + 3y > 6 y ≥ 2x + 4 PLEASE HELP

Andrei [34K]

Answer:

x + 3y > 6

Step-by-step explanation:

Find two points that satisfy x + 3y = 6 and draw a DASHED line through them.

It is greater than so shade the section ABOVE that line.

Using the intercept method, the two points I chose are: (0, 2) & (6, 0)

y ≥ 2x + 4

Find two points that satisfy y = 2x + 4 and draw a SOLID line through them.

It is greater than so shade the section ABOVE that line.

The two points I chose are: (0, 4) & (1, 6)

The solution is where the shaded sections overlap.

3 0

1 year ago

Read 2 more answers

Solve for a.

FinnZ [79.3K]

Answer:

iii) a=3b/2

Step-by-step explanation:

7a-2b= 5a+b

7a-5a=2b+b

2a=3b

a=3b/2

8 0

2 years ago

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All members of our painting team paint at the same rate. If $20$ members can paint a $6000$ square foot wall in $24$ minutes, th

Yuri [45]

Let x represent time taken by 20 members to paint 9000 square foot wall.

We have been given that all members of our painting team paint at the same rate. 20 members can paint a 6000 square foot wall in 24 minutes. We are asked to find the time taken by 20 members to paint 9000 square foot wall.

We will use proportions to solve our given problem.

$\frac{\text{Time taken}}{\text{Area of wall painted}}=\frac{24\text{ min}}{6000\text{ ft}^2}$

$\frac{x}{9000\text{ ft}^2}=\frac{24\text{ min}}{6000\text{ ft}^2}$

$\frac{x}{9000\text{ ft}^2}\times 9000\text{ ft}^2=\frac{24\text{ min}}{6000\text{ ft}^2}\times 9000\text{ ft}^2$

$x=\frac{24\text{ min}}{6}\times 9$

$x=4\text{ min}\times 9$

$x=36\text{ min}$

Therefore, it will take 36 minutes for 20 members to paint 9000 square foot wall.

6 0

2 years ago

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