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lina2011 [118]
3 years ago
5

An alloy of silver and gold is to be recast with an addition of silver. This new alloy consists of 80 ounces and is to have only

one-fifth of an ounce of gold in 5 ounces.
What percentage of gold is in the new alloy after the recasting?
Mathematics
1 answer:
Liula [17]3 years ago
5 0

Answer:

What percentage of gold is in the new alloy after the recasting? 4

Step-by-step explanation:

(80/5)*(1/5)/80=0.04

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Alik [6]

Answer:

2cm of Rainfall

Step-by-step explanation:

When the no. of mosquitoes is the highest the slope of graph will be zero

so if we differentiate this function and equate to zero we can find the rainfall amount that gives maximum number of mosquitoes in centimetres.

m(x)= -x²+4x

differentiate

d(x)/d(m(x))= -2x+4

equate to zero

-2x+4=0

2x=4

x=2

answer: 2 cm of rain

6 0
3 years ago
Someone help me with this please!
kifflom [539]

Answer:

input:                    x+4                   output        (x,y)

-2                        -2 + 4 =2               2             (-2,2)

0                          0 + 4 = 4              4              (0,4)

2                           2 + 4 = 6              6             (2,6)

...

Step-by-step explanation:

continue by plugging in x to the equation, x is input and y is output

then just plot your (x,y) points on the graph.

4 0
2 years ago
I have more sides than a quadrilateral , but fewer sides than a hexagon who could I be
Korolek [52]
You would be a pentagon. A pentagon has 5 sides

7 0
2 years ago
Read 2 more answers
Miguel and his brother Ario are both standing 3 meters from one side of a 25-meter pool when they decide to race. Miguel offers
Westkost [7]

Answer:

Miguel start to swim when Ario has traveled 4.4 m.

Step-by-step explanation:

The total lenght of the pool is 25.

Since both of them standing 3 m from one side of the pool, then, the total distance both need to cover is 25-3 m= 22 m.

Assume that the distance traveled by Ario before Miguel start to swin is x. That means, the remaining distance to Ario (to cover the total size of the pool) is 22-x.

Then, in acoordance to the problem, the ratio between these two distances must be equal to 1/4.

That is,

\frac{x}{22-x}=\frac{1}{4} .

So, we need to obtain x from this equation. We must note that x\neq 22, otherwise we have a zero in the denominator.

So, we rearrange the equation,

4x=22-x (Multiplying both sides of equation by (4(22-x)).

Then, 5x=22.

Therefore, x=4.4 m.

3 0
3 years ago
Consider the diagram below
MissTica
Sbsnsjsuhxhxjxsii t amamandjdmx
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