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pickupchik [31]
3 years ago
5

Y = 3/2x + 5/4 −2x + 8y = −25

Mathematics
1 answer:
Andreyy893 years ago
3 0

Answer:

<h2>x = -347 1/2</h2>

Step-by-step explanation:

When solving algebra, it is important the we follow the steps in correct order and check our answer at the end.

Step 1: Simplify by combining like terms

y = -x/2 + 5/4 + 8y = -25

Step 2: Substitute

y = -25

-25 = -x/2 + 5/4 + 8(-25)

-25 = -x/2 + 5/4 + -200

-25 = -x/2 - 198 3/4

Step 3: Answer

x = -347 1/2

Step 4: Check

y = 3/2x + 5/4 −2x + 8y = −25

-25 = 3/2(-347 1/2) + 5/4 −2(-347 1/2) + 8(-25)

-25 = -25✔️

Step 5: Verified Answer

x = -347 1/2

I'm always happy to help :)

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A Student bought concert tickets online. The total cost, c, in dollars of t tickets can be found by using the function c=24.50t
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Step-by-step explanation:

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The circumference of a circle is 128π inches. find the exact length of the diameter.
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d≈40.74

Step-by-step explanation:

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A tap can fill a bucket in 6 hours. After half the bucket is filled, three more similar taps are opened. What is the total time
Masja [62]

The total time taken to fill the bucket completely is 3 hours and 45 minutes.

<h3>What is Division?</h3>

The division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.

Let the volume of the bucket be represented by x. Then the rate at which the complete bucket can be filled is,

Rate = Total volume/ Time taken to fill the bucket

Rate = x / 6

Now, the time it will take for the half bucket, therefore, x/2 bucket to fill,

Rate = Volume / Time

x/6 = (x/2) / Time

Time = (x/2) / (x/6)

Time = 3 hours

Now, since three more such taps are opened, therefore, the rate of filling the bucket will be,

Rate = 4 × Rate of a single tap

       = 4 × (x/6)

       = 4x / 6

       = 2x / 3

Further, the time it will take for the four taps to fill the half bucket is,

Rate = Volume / Time

2x/3 = (x/2) / Time

Time = (x/2) / (2x/3)

Time = 3/4 hours

Furthermore, the total time taken to fill the bucket completely is,

Total time = 3 hours + 3/4 hours

                = 3 3/4 hours

                = 3.75 hours

                = 3 hours and 45 minutes

Hence, the total time taken to fill the bucket completely is 3 hours and 45 minutes.

Learn more about Division here:

brainly.com/question/369266

#SPJ4

7 0
1 year ago
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