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erik [133]
4 years ago
14

-5r + 15 > -5(r-2) ?

Mathematics
1 answer:
Mice21 [21]4 years ago
4 0

Answer: All real numbers are solutions (Infinite solutions)

Step-by-step explanation: Let's solve your inequality step-by-step.

−5r+15>−5(r−2)

Step 1: Simplify both sides of the inequality.

−5r+15>−5r+10

Step 2: Add 5r to both sides.

−5r+15+5r>−5r+10+5r

15>10

Step 3: Subtract 15 from both sides.

15−15>10−15

0>−5

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Which two rooms have an
alexgriva [62]

Answer: room 101 and room 107

Step-by-step explanation:

In room 101, the ratio of boys to girls is 16:12. This is further simplified to its lowest fraction by dividing by 4. It becomes 4:3

In room 104, the ratio of boys to girls is 20:9. This cannot be further simplified to its lowest fraction.

In room 107, the ratio of boys to girls is 12:9. This is further simplified to its lowest fraction by dividing by 3. It becomes 4:3

Therefore, room 101 and room 107 have the same ratio.

4 0
3 years ago
When testing for current in a cable with eight ​color-coded wires, the author used a meter to test five wires at a time. How man
balu736 [363]

Answer:

56 different tests

Step-by-step explanation:

Given:

Number of wires available (n) = 8

Number of wires taken at a time for testing (r) = 5

In order to find the number of different tests required for every possible pairing of five wires, we need to find the combination rather than their permutation as order of wires doesn't disturb the testing.

So, finding the combination of 5 pairs of wires from a total of 8 wires is given as:

^nC_r=\frac{n!}{r!(n-r)!}

Plug in the given values and solve. This gives,

^8C_5=\frac{8!}{5!(8-5)!}\\\\^8C_5=\frac{8\times 7\times 6\times 5!}{5!\times 3\times2\times1}\\\\^8C_5=56

Therefore, 56 different tests are required for every possible pairing of five ​wires.

6 0
3 years ago
Select the numbers below that are part of the domain of the function. (3, 0); (-6, -5); (0,-3) ; (-9, 7) ; (6, 4)
liraira [26]

Answer:

3, -6, 0, -9, 6

Step-by-step explanation:

Select the numbers below that are part of the domain of the function. (3, 0); (-6, -5); (0,-3) ; (-9, 7) ; (6, 4

The domains are independent variables in Mathematical equations. They are the variables that determine the range of any Mathematical equations.

From the series of numbers given above, the domains are:

3, -6, 0, -9, 6

8 0
3 years ago
If jenny has 15 balls and she divides them by three what does she get
slamgirl [31]
5×3=15 so 15÷ 3=5, The answer to this question would be is 5.
7 0
3 years ago
Read 2 more answers
Write the equation represented by the graph below.
alexira [117]

Answer:

y=3/10x

Step-by-step explanation:

First, use the formula y2-y1/x2-x1. Pick any two points from the line to put into this formula. In this case, I would pick (0,0) and (20,6) cause I'm lazy lol. Plot these points into the formula. It would look like this 6-0/20-0. Simplify this to get 6/20. The GCM of 6 and 20 is 2 so divide 2 in each side to get 3/10. Because the y-intercept is on 0, there is no y-intercept. Therefore, the equation is y=3/10x

If this helps, please mark this answer as brainliest

3 0
3 years ago
Read 2 more answers
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