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aleksklad [387]
3 years ago
11

The ratio of tin to copper in an alloy is 6:9. How many kg of copper are there if the alloy has 32 kg of tin? Make a ratio table

to solve.
Mathematics
1 answer:
Artyom0805 [142]3 years ago
5 0

Step-by-step explanation:

the three rows above you may draw as the ratio table

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200 at 6% twice a year how much will Rachel have in ten years
Svetach [21]
A=P(1+R)^n
A=amount in 10 years
P=original amount (200)
R=rate(o.o6)
n=number of times compunded(20)
A=200x1.06^20
  =641.4270944
Therefore Rachel will have 641.42 in 10 years
6 0
3 years ago
Find the cube roots of 125(cos 288° + i sin 288°)
kow [346]
Let r(cos O + i sin O)  be a cube root of 125(cos 288 + i sin 288)
then
r^3(cos O + i sin O)^3  =  125(cos 288 + i sin 28)

so r^3 = 125  and  cos 3O + i sin 3O  =  cos 288 + i sin 288

so r  = 5  and 3O = 288 + 360p and O = 96 +  120p

so one cube root is   5 (cos 96 + i sin 96)

Im a little rusty at this stuff Its been a long time.

Im not sure of the other 2 roots

sorry cant help you any more


3 0
3 years ago
Read 2 more answers
Will give brainliest to whoever answers both questions!! I need to turn this in soon!
Harman [31]

Answer:

y=55x

given y=385

x=gallons of gas = 385/55 = 7 gallons

inverse function

y=55x

change x to y and y to x

x=55y

y=x/55

inverse function is x/55

Step-by-step explanation:

5 0
3 years ago
In a group of seventeen people, five play guitar and six play piano. Only two people play both piano and guitar. Which two-way t
Andru [333]
You forgot the picture
3 0
3 years ago
Give the slope of y- 4 = 5(x - 2) and a point on the line.
ValentinkaMS [17]

Answer:

<h2>B. The slope is 5 and (2, 4) is on the line.</h2>

Step-by-step explanation:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

<em>m</em><em> - slope</em>

<em>(x₁, y₁)</em><em> - point</em>

<em />

We have the equation:

y-4=5(x-2)

Therefore

<em>m = 5</em>

<em>(x₁, y₁) = (2, 4)</em>

<em />

5 0
3 years ago
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