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LUCKY_DIMON [66]
3 years ago
9

Find a number if 5/4 of it is y

Mathematics
2 answers:
rjkz [21]3 years ago
8 0

Answer:

n= 4/5y

Step-by-step explanation:

n: number

1.) 5/4n = y

2.) mulitply by 4/5 on both sides because multiplying by the receprical makes 1 (also the same thing as dividing by 5/4)

n= 4/5y

stepan [7]3 years ago
7 0

Answer:

can you give more detail to the question?

Step-by-step explanation:

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Does the given matrix, A, have an inverse? If it does, what is A-1?
ololo11 [35]

Answer:

yes he does

Step-by-step explanation:

6 0
3 years ago
Convert the number to standard form.<br><br> 8.71 xx10^(12)
ExtremeBDS [4]

8.71 xx10^(12)

The exponent is a positive number. This means the decimal point moves to the right by  the number of the exponent.

There are two digits to the right of the decimal point, so to move the decimal 12 places, you would need to add 10 zeros.

8.71 x 10^12 becomes 8,710,000,000,000.

4 0
4 years ago
Solve for n <br> 3n - 7 = 6n - 2n
Vika [28.1K]

Answer: n=-7

Step-by-step explanation:

3n-7=6n-2n

3n-7=4n

-7=n

n=-7

6 0
4 years ago
Read 2 more answers
A ball is thrown into the air with a velocity of 33 ft/s. Its height, in feet, after t seconds is given by
meriva

Answer:

velocity at t=1 is 1 ft/s

Step-by-step explanation:

by integration s(t) equation we get v(t)

v(t)=33-32t

by substitution t=1 in v(t) equation we get

33-32=1 ft/s

7 0
2 years ago
A bag contains 7 red marbles, 3 blue marbles and 5 green marbles. If three marbles
worty [1.4K]

Answer:

3.7%

Step-by-step explanation:

We know that from this situation, the probability of drawing a single green marble is 1/3. However, to find the probability of drawing 3 green marbles, we will need to do:

P= \frac{1}{3}* \frac{1}{3}*\frac{1}{3}

We get a probability of:

P= \frac{1}{27}

This converts to a percentage of:

\frac{1}{27}= 0.037 \\ 0.037*100= 3.7%

We get a percentage of 3.7%

8 0
3 years ago
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