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ASHA 777 [7]
2 years ago
12

An elevator began in the 9th floor. It went down 7 floors. Then, it went up 4 floors. On which floor did it stop?

Mathematics
2 answers:
nordsb [41]2 years ago
6 0
The answer is floor number 6
yawa3891 [41]2 years ago
6 0

Answer: Hope this helps you!

6th floor

Step-by-step explanation:

<em>If it starts on the 9th floor and goes down 7 floors that is:</em>

9 <em>(9 floors) </em>+ -7 <em>(down 7 floors)</em>

<em>which is also equal to 9-7</em>

9-7 = 2

<em>Next, we need to go up by 4 floors starting with 2, 2+4</em>

2+4 = 6

Brainliest?

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What is an equation of the line that is perpendicular to y+1=-3(x-5) and passes through the point 4,-6
Oliga [24]

Answer:

y=\frac{1}{3}x-\frac{16}{3}

Step-by-step explanation:

Arranging the given equation in slope-intercept form ( y = mx + b ):

y+1=-3(x-5)\\y+1=-3x+15\\y=-3x+15-1\\y=-3x+14

<em>We know that the perpendicular line would have a slope (m) that is </em><em>negative reciprocal </em><em>of this (\frac{1}{3}). Thus we can write the perpendicular line's equation as  y=\frac{1}{3}x+b. </em>

<em />

<em>Now putting x = 4 and y = -6 into the equation, we can solve for b:</em>

<em>y=\frac{1}{3}x+b\\-6=\frac{1}{3}(4)+b\\-6=\frac{4}{3}+b\\b=-6-\frac{4}{3}\\b=-\frac{16}{3}</em>

<em />

Thus, the equation of the perpendicular line is  y=\frac{1}{3}x-\frac{16}{3}

6 0
3 years ago
Read 2 more answers
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Gwar [14]
The answer is 1 inch equals 8
3 0
3 years ago
Which ordered pair is the solution to the system of linear equations y = 5x+8 and Y = -4x-1?
White raven [17]

Answer:

(-1, 3)

Step-by-step explanation:

If you graph both lines, the point where they intersect is (-1,3)

4 0
3 years ago
Question 5 id points
NARA [144]

Probability of winning a grand prize is 1/10

Probability of winning a basic prize is 11/20

What is the probability of two independent events?

If A and B are two independent events, then P(A and B) = P(A) * P(B).

If Events A and B are independent, the probability that either Event A or Event B occurs is: P(A or B) = P(A) + P(B) - P(A and B).

Solution:

P(A) = no. of A / total possibility

      = 4/10

P(B) = no. of 1's/total possibility

      = 3/12

     =  1/4

Now,

To win a grand prize you need an "A" and "1" .

∴ P(A and B) = P(A) × P(B)

                    = 4/10 × 1/4

         P(A and B) = 1/10

Now ,

To win a basic prize you need to spin an "A" or a "1"

∴ P(A or B) = P(A) + P(B) - P(A and B)

                  = 4/10 + 1/4 - 1/10

                  = 3/10 + 1/4

∴ P(A or B)=  11/20

To learn more about probability of independent events click on the link below:

brainly.com/question/16157262

#SPJ4

7 0
1 year ago
Read 2 more answers
Help me Please !!!! You will receive Brainliest!!!
Gnesinka [82]
(-3, -3) and (2, 7).

The solutions to a graphed system of equations are where the two graphs cross each other. So in this case the two equations cross at (-3, -3) and (2, 7), and those points are the solutions to the system of equations.
7 0
3 years ago
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