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Sav [38]
3 years ago
15

A. 231 B. 39 C. 129 D. 51

Mathematics
1 answer:
VladimirAG [237]3 years ago
3 0

Answer:

the answer is

129

Step-by-step explanation:

cyclic

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Solve the equation.<br> 4s=2/5<br><br> s=<br> (Type a whole number, fraction, or mixed number.)
BabaBlast [244]

Answer:

s = 1/10

Step-by-step explanation:

First, divide both sides by 4 to get s by itself.

(2/5) / 4 = 1/10

s = 1/10

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11. On Halloween, 87.5% of the homes in a
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Find the percent of increase or decrease? 2.5y to 1.5y
horsena [70]

Answer:

From 2.5 y to 1.5 y there is a 40 % DECREASE in the value.

Step-by-step explanation:

Here, the initial value = 2.5 y

The final value of 1.5 y

Now,as Final Value  < Initial Value

So, there is a DECREASE IN THE VALUE.

Now, decrease in the value  = Initial value  - Final Value  

                                                =  2.5 y = 1.5 y  = 1 y

or, there is a decrease of ( 1 y) in the given value.

Now, Percentage decrease in the value is given as:

\textrm{Percentage Decrease} = \frac{\textrm{The decrease in the value}}{\textrm{The initial Value}} \times 100\\ = \frac{1 y}{2.5 y}  \times 100 = 40

or, Percentage Decrease = 40%

Hence, from 2.5y to 1.5y there is a 40 % DECREASE in the value.

4 0
3 years ago
A vat with 700 gallons of beer contains 4% alcohol (by volume). Beer with 6% alcohol is pumped into the vat at a rate of 7 gal/m
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Answer:

5.2%.

Step-by-step explanation:

After 1 hour (60 / 100) * 700 = 420 gallons of beer have been exchanged.

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So the strength at that time =  (420* 6) + 280*4) / 700

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Find all real values of x such that of -2x^2 +3x=1
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Here, hope this helps

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3 years ago
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