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9966 [12]
2 years ago
13

The key to using the elimination method is to find variable terms in the two equations that have unequal coefficients.

Mathematics
2 answers:
Colt1911 [192]2 years ago
6 0
A.true



Jdjdididjdndjdhudiss
boyakko [2]2 years ago
4 0
Answer: B) False

Detailed Explanation:

We need to find the variables having equal coefficients or make the coefficients of some variable equal because we will be able to eliminate a variable. For eg. take the following pair of linear equations.

=> x + y = 14 (Eq. 1)
=> x - y = 4 (Eq. 2)

As we see, the coefficients of x and y are same but in y, the coefficients are +1 and -1 which can be easily cancelled while adding the equations. This will eliminate the variable y. So, we can find the value of x and then substitute it in any equation to find the value of y.
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A public swimming pool that holds 45,000 gallons of water is going to be drained for maintenance at a rate of 100 gallons per mi
crimeas [40]

Answer:

450 minutes

Step-by-step explanation:

Given

w = 45000 - 100t

Required

Determine how long it'll take to empty the pool

Being empty means there's no water in the pool.

So, we have to set w to 0 to get the value of t

i.e w = 0

Substitute 0 for w in w = 45000 - 100t

0 = 45000 - 100t

Collect Like Terms

100t = 45000

Divide through by 100.

t = 450

Hence, it'll take 450 minutes to empty the pool

8 0
2 years ago
What are the steps to 6023 x 854
solniwko [45]
You just multiply them together
6 0
3 years ago
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Jim hit the ball 9 out of 15 times. Find the percent Jim hit the ball.
lapo4ka [179]

Answer:

9/15 = 0.6 = 60%

Step-by-step explanation:

5 0
2 years ago
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Which of the following is equal to the expression listed below?
sergey [27]
B be because
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5 0
3 years ago
What is the rate of change from 11-12<br> 12-13<br> 13-15 <br> First answer gets brainest
Musya8 [376]
To count for the change you can subtract the numbers

the change from 11 to 12:  61.5 - 59.5 is 2
the change from 12 to 13: 65 - 61.5 is 3.5
the change from 13 to 15 69 - 65 is 4

Hope this helps :)
8 0
3 years ago
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