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leva [86]
2 years ago
15

there are 30 rooms available to house 42 students . if each room is occupied by either one or two students, how many rooms are o

ccupied by just one student ?
Mathematics
1 answer:
Aleks [24]2 years ago
6 0

Answer:

18 rooms

Step-by-step explanation:

  1. 42-30=12
  2. 30 rooms are already occupied so you would minus 30 and 12. (30-12=18)

Hope that helps!

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Linear equation: -1
Anika [276]

Answer:

The right answer is:

the addition property of equality and then the division property of equality

Step-by-step explanation:

Given equation and steps to solve it are:

Step 1: –3x – 5 = 13

Step 2: –3x = 18

Step 3: x = –6

In step two, -5 has to be removed from left hand side of the equation so additional property of equality will be used i.e. adding 5 on both sides

Similarly in the third step, to remove -3 with x , division property of equality will be used i.e. dividing both sides by -3

Hence,

The right answer is:

the addition property of equality and then the division property of equality

6 0
3 years ago
Read 2 more answers
What is the equation of the quadratic graph with a focus of (3, 6) and a directrix of y = 4? f(x) = one fourth (x − 3)2 + 1 f(x)
mina [271]
 Let point (x, y) be any point on the graph, than the distance between (x, y) and the focus (3, 6) is sqrt((x - 3)^2 + (y - 6)^2) and the distance between (x, y) and the directrix, y = 4 is |y - 4|

Thus sqrt((x - 3)^2 + (y - 6)^2) = |y - 4|
(x - 3)^2 + (y - 6)^2 = (y - 4)^2
x^2 - 6x + 9 + y^2 - 12y + 36 = y^2 - 8y + 16
x^2 - 6x + 29 = -8y + 12y = 4y
(x - 3)^2 + 20 = 4y
y = 1/4(x - 3)^2 + 5

Required answer is f(x) = one fourth (x - 3)^2 + 5
8 0
2 years ago
They are 100 questions on the math test salad answered 88 of those questions correctly what percent did she get correct on the t
Debora [2.8K]
88/100 = 0.88 = 88% were answered correctly
4 0
3 years ago
What is 5 2/3 as a improper fraction
leva [86]

You would write it as 17/3 because you times 3 by 5 and get 15 and then you add the 2 to get 17 and you leave the 3 underneath the 17 so you final answer is 17/3 and that is a improper fraction

4 0
3 years ago
Read 2 more answers
Write the inequality to represent the situation: "x can be no more than 5." Copy/paste the symbols if you need to: < > ≤ ≥
Sophie [7]

Answer:

x < 5

Step-by-step explanation:

Hi,

If you have a line under the < or > sign, it means x can be less than OR EQUAL TO, since x has to be less than 5, neither of those signs can work. Now, < means less than and > means greater than. For this, x < 5 is the correct answer because we know that x has to be less than 5.

I hope this helps :)

6 0
3 years ago
Read 2 more answers
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