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KatRina [158]
3 years ago
5

I HAVE ASKED THIS QUESTION LIKE 8 TIMES TODAY AND NO ONE WILL HELP ME:( PLEASE HELP ME I BEG YOU GUYS!!!

Mathematics
1 answer:
Sati [7]3 years ago
8 0

Answer:

156.25 grams

Step-by-step explanation:

Well, for starters we know that the substance decays by 2% each day and its been decaying for 34 days. Therefore, the substance has decayed by 68%        

34 x 2 = 68

Hence, 50 grams is 32% because the substance has already decayed by 68%

100 - 68 = 32

So now we know 50 grams is 32%. Now we need to find how much 100% is.

50 - 32%

X   - 100%

We cross multiply.

50 x 100 = 5000

And divide.

5000 / 32 = 156.25

Thus, in the beginning, there were 156.25 grams in the substance.

Hope this helps! :)

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1.25a+3>0.5a-6 and 2.5a-1>=9-1.5a
exis [7]

The solution to the compound inequality given as: 1.25a+3>0.5a-6 and 2.5a-1>=9-1.5a is a > -12 and a>= 2.5

<h3>How to determine the solution to the compound inequality?</h3>

The compound inequality is given as:

1.25a+3>0.5a-6 and 2.5a-1>=9-1.5a

Rewrite the compound inequality properly as follows

1.25a + 3 >0.5a - 6 and 2.5a - 1 >= 9 - 1.5a

Collect the like terms in the above compound inequality

1.25a - 0.5a > -3- 6 and 2.5a + 1.5a  >= 9 + 1

Evaluate the like terms in the above compound inequality

0.75a > -9 and 4a>= 10

Divide both sides by the coefficient of the variable term in the above compound inequality

a > -12 and a>= 2.5

Hence, the solution to the compound inequality given as: 1.25a+3>0.5a-6 and 2.5a-1>=9-1.5a is a > -12 and a>= 2.5

Read more about inequality at:

brainly.com/question/24372553

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8 0
2 years ago
The adjustment to record supplies used during the period would be which of the following? A. Debit Supplies; credit Supplies Exp
erastovalidia [21]
The adjusting entry to record supplies used is

C. Debit Supplies Expense; credit Supplies

Because it's recorded as expenses

Hope it helps!
5 0
4 years ago
Read 2 more answers
A car travels 8 miles in 12 minutes. What is the cars rate in miles per hour
lorasvet [3.4K]
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6 0
3 years ago
What is the reciprocals of the fraction 37/74
lidiya [134]
<h2>The reciprocals of the fraction \dfrac{37}{74} =  \dfrac{74}{37} or 2.</h2>

Step-by-step explanation:

We have,

\dfrac{37}{74}

To find, the reciprocals of the fraction \dfrac{37}{74} = ?

∴ \dfrac{37}{74}

Dividing numerator and denominator by 37, we get

= \dfrac{1}{2}

= \dfrac{37}{74} or, \dfrac{1}{2}

We know that,

The reciprocals of the fraction \dfrac{x}{y} =\dfrac{y}{x}

The reciprocals of the fraction \dfrac{37}{74} = \dfrac{74}{37} or \dfrac{2}{1}

= \dfrac{74}{37} or 2

Thus, the reciprocals of the fraction \dfrac{37}{74} =  \dfrac{74}{37} or 2.

4 0
3 years ago
Suppose the coefficient matrix of a system of linear equations has a pivot position in every row. Explain why the system is cons
mestny [16]

Answer: A.

The system is consistent because the rightmost column of the augmented matrix is not a pivot column.

Explanation: a system is consistent if and only if the rightmost column of the augmented matrix is not a pivot column. Since every column of the coefficient matrix is a pivot column, none of the leading coefficients are in the rightmost column of the augmented matrix. Therefore the rightmost column of the augmented matrix cannot be a pivot column and the system must be consistent.

8 0
4 years ago
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