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3 years ago

3. In the equation below, k is a constant. If x = 6, what is the value of k? Vk + 2 - x = 0

Mathematics

1 answer:

ehidna [41]3 years ago

5 0

Answer:

Write the equation with 6 for x

Vk + 2 - 6 = 0

Vk - 4 = 0

Add 4 to both sides

Vk = 4

Divide both sides by V

k = 4/V

Step-by-step explanation:

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Write the word sentence as an inequality.<br><br> A number x minus 1/4 is no more than -3/4

Umnica [9.8K]

Answer:

x-1/4 ≤-3/4

Step-by-step explanation:

A number x

minus 1/4

x-1/4

is no more than (it cannot be greater than , but it can be equal to)

x-1/4 ≤

-3/4

x-1/4 ≤-3/4

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3 years ago

In the last hour, 7 planes have landed at the airport and 11 planes have taken off. Use addition to find the change in the total

KatRina [158]

7+11= 18 planes in the last hour

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3 years ago

The graph of 15x + 7y = 15 is shown on the grid. Which ordered pair is in the solution set of 15x + 7y ≥ 15?

elena55 [62]

Answer:

The correct option is c.

Step-by-step explanation:

The given equation is

$15x+7y=15$

The given inequality is

$15x+7y\geq 15$

A point will contained in solution set if the above inequality satisfied by that point.

Check the point (0,-3),

$15(0)+7(-3)\geq 15$

$-21\geq 15$

This statement is false, therefore option a is incorrect.

Check the point (-3,0),

$15(-3)+7(0)\geq 15$

$-45\geq 15$

This statement is false, therefore option b is incorrect.

Check the point (3,3),

$15(3)+7(3)\geq 15$

$66\geq 15$

This statement is true, therefore option c is correct.

Check the point (-3,-3),

$15(-3)+7(-3)\geq 15$

$-66\geq 15$

This statement is false, therefore option d is incorrect.

7 0

3 years ago

40% of the children in a sports club play badminton. 25% of the children who play badminton also play squash. There are 11 child

Keith_Richards [23]

Answer:

There are 110 children total in the sports club

Step-by-step explanation:

To get this answer, its actually easier than it seems. You might need a calculator however.

First you start with the 11 children who play both badminton and squash, then, you divide that by 0.25 (25%) to get 44.

Next you take 44 and divide it by 0.4 (40%) to get 110.

And there you go! If you want to make sure you got it right simply start with 110 and multiply it by 0.4 then multiply the number/decimal you get by 0.25. You should get 11 to confirm your answer :)

6 0

3 years ago

P is the largest prime number between 50 and 100.

Bogdan [553]

Answer: 46

Step-by-step explanation:

Largest prime number: 97

Smallest prime number: 51

97-51 = 46

8 0

3 years ago