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Crank
2 years ago
5

1/2(x-5)=2x+5. What’s the answer

Mathematics
1 answer:
sergeinik [125]2 years ago
5 0

Answer:

x = -5

Step-by-step explanation:

1/2(x-5)=2x+5

Multiply each side by 2

2(1/2(x-5))=2(2x+5)

x-5 = 4x+10

Subtract x from each side

x-5-x = 4x+10-x

-5 = 3x+10

Subtract 10 from each side

-5-10 = 3x+10-10

-15 =3x

Divide by 3

-15/3 = 3x/3

-5 =x

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Math gram question please help thanks
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This would be 60/24 (60 grams mass divided by 24 cm^3 volume)
60/24 = 2.5
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7 0
3 years ago
Kevin weighed his baggage before going on a trip. In what unit did the measuring scale show the weight of his baggage? What is t
seropon [69]

Step-by-step explanation:

the answer is lbs i think

4 0
3 years ago
A coin purse contains d dimes and q quarters.There are 20 coins in the purse and the total value of the coins is $4.25.which sys
mel-nik [20]
25q + 10d = 425
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First thing's first, picture 4 quarters. Do you know how much these 4 quarters are worth? Obviously, you'd answer one dollar, but take the time to think about how exactly you came up with this answer.

"Well, it's simple," you might think, "Multiply 0.25 by 4."

Similar to this train of thought, the first equation is formulated by doing exactly that. 'q' represents an unknown number of quarters, and 'd' an unknown number of dimes. We use 25q and 10d, because, well, we're multiplying their value by the number of coins. They're equivalent to 425 because the 20 unknown coins make $4.25 (I converted it to cents to get rid of the pesky decimals, but if you want to keep it as dollars that works too).

Because the equation states that there are 20 coins in total, we know that we can make the equation 'q + d = 20' since there are 20 quarters and dimes in total.

Let me know if you need any further explanation :)
-T.B.
3 0
3 years ago
Read 2 more answers
The probability that a pupil in class has a calculator is 0.87 what is the probability that a pupil does not have a calculator?
lidiya [134]

Answer:

0.87 1.0

0.13

Step-by-step explanation:

0.13 dont have a calculator

8 0
3 years ago
Savings account with 200$ and receive 4% interest for 7 years, how much would be in the account?
Fantom [35]

Answer:

256

Step-by-step explanation:

To calculate these kinds of things, I multiply the principal (200), the interest rate (0.04) and the time (7). This results in 56. However, since the question is how much would be in the account, it would be 200+56 which is 256.

5 0
3 years ago
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