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DIA [1.3K]
3 years ago
7

I need the answers and steps please

Mathematics
1 answer:
lakkis [162]3 years ago
7 0

Answer:

19. 2x-3=17

or, 2x= 17+3

or, x= 20/2

•. x=10

•. •

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Slope of points (2,3) and (-4,12)​
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8 0
3 years ago
a metallurgist has an alloy with 10% titanium and an alloy with 20% titanium. he needs 100 grams of an alloy with 17% titanium.
oee [108]

Let us say that:

x = mass of 10% titanium alloy required

y = mass of 20% titanium alloy required

To solve this problem, we set-up two mass balances or equations.

Overall mass balance:    x + y = 100

                                                x = 100 – y                           ---> 1

Titanium mass balance: 0.10 x + 0.20 y = 0.17 (100)

                                                0.10 x + 0.20 y = 17           ---> 2

Now we combine equations 1 and 2:

0.10 (100 – y) + 0.20 y = 17

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Calculating for x using equation 1:

x = 100 – y

x = 100 – 70

x = 30 g


Answer:

x = 30 g of 10% titanium alloy required

y = 70 g <span>of 20% titanium alloy required</span>

6 0
3 years ago
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