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Nostrana [21]
3 years ago
12

What are the rules to remember while working with Proportional Relationships?

Mathematics
1 answer:
guapka [62]3 years ago
6 0

Answer:

Some textbooks describe a proportional relationship by saying that " y varies proportionally with x " or that " y is directly proportional to x ." This means that as x increases, y increases and as x decreases, y decreases-and that the ratio between them always stays the same.

Step-by-step explanation:

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The time, T (seconds) it takes for a pot of water to boil is inversely proportional to the cooker setting, H, applied to the pot
Lera25 [3.4K]

Answer:

T = 96

Step-by-step explanation:

From the question given above, we were told that the time, T (seconds) it takes for a pot of water to boil is inversely proportional to the cooker setting, H. This can be written as:

T ∝ 1/H

T = K/H

Cross multiply

K = TH

Next, we shall determine the value of K. This can be obtained as follow:

H = 8

T = 120

K =?

K = TH

K = 120 × 8

K = 960

Finally, we shall determine the value of T when H = 10. This can be obtained as illustrated below:

H = 10

K = 960

T =.?

T = K/H

T = 960/10

T = 96

6 0
3 years ago
Add 2 to 5, then multiply 3 by the result
Nostrana [21]

Answer:

21

Step-by-step explanation:

<em>Step 1: add 2 to 5</em>

=> 2 + 5

=> 7

<em>Step 2: Multiply the result by 3:</em>

=> 7 * 3

=> 21

Therefore the <u>final answer = 21</u>

Hope this helps!

7 0
3 years ago
Read 2 more answers
If the odds against Deborahs winning first prize in a chess tournament are 1 to 11 what is the probability of the event that she
Lemur [1.5K]

Answer: \dfrac{11}{12}

Step-by-step explanation:

Given

The odds against winning in a chess tournament are 1 to 11.

Odds is defined as the ratio of the probability of occurrence to the non-occurrence of event.

\therefore \text{Probability that event will occur is P'=}\dfrac{1}{1+11}\\\\\Rightarrow P'=\dfrac{1}{12}

Probability of non-occurrence i.e. she wins the first prize is

\Rightarrow P=1-\dfrac{1}{12}\\\\\Rightarrow P=\dfrac{11}{12}

7 0
3 years ago
Which is the best description for this histogram?
pshichka [43]

Answer: it is a

Step-by-step explanation: i got it right

7 0
3 years ago
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There are nine teddy bears in the diagram below. How many TOTAL squares are<br> there?
IgorC [24]

Answer: 14

Step-by-step explanation: 9 small squares with one teddy bear in each, 4 medium squares with 4 bears in each medium square, and 1 big square for the entire thing.

6 0
3 years ago
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