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kirza4 [7]
2 years ago
10

An alloy contains nickel and chromium in 3:2 ratio, find the mass of each metal in 540g of alloy.​

Mathematics
1 answer:
miskamm [114]2 years ago
4 0

Answer:

Let the mass of nickle be 3x

And the mass of chromium be 2x

According to question,

3x+2x = 250

5x = 250

x =250/5

x = 50

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The first thing that you have to do is line it up from least to greatest: 98,104,104,105,111,117,120,121. Then you add all of the numbers and divide the total of all the number of scores she has. 880/8=110. 110 is the answer of your question. ( I got 8 because I had to count all the numbers and I got 880 because I added all the numbers).
7 0
2 years ago
Find S5 for a geometric series for which a1=81 and r=1/9.
Minchanka [31]

ANSWER

S_5=91\frac{10}{81}




EXPLANATION


The sum of the first n terms of a geometric sequence is given by;


S_n=\frac{a_1(1-r^n)}{1-r} ,-1


Where n, is the number of terms and a_1 is the first term.


When n=5, we have a_1=81, we get;


S_5=\frac{81(1-(\frac{1}{9})^5)}{1-\frac{1}{9}}


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S_5=\frac{7381}{81}


S_5=91\frac{10}{81}




6 0
3 years ago
What's the answer to: divide £48 in the ratio 7:5 (please show your working, much appreciated)
Brums [2.3K]
I can see you come from outside the USA. No insults intended!!
.
Anyways, we have to put one side of the ratio and match it to 48. 
.
Or even better...
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MAKE!!
A!!
PROPORTION!!
.
So... Let's say 7 is proportional to 48... so 7/5 = 48/x, where x is the number equivalent to ratio of 5.
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Cross multiply!!
<span>.
</span>7x = 240.
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Divide 7 on both sides.
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x = 34 2/7.
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Hope I helped!!
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Igoryamba
The answer is 257.92 dollars. Comment if you need more help :)
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3 years ago
What is the distance from (−2, 4) to (0, −6)? Round your answer to the nearest hundredth. 9.23 10.20 10.98 11.34
nevsk [136]
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5 0
3 years ago
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