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ipn [44]
3 years ago
15

I can't figure it out​

Mathematics
1 answer:
kap26 [50]3 years ago
8 0

Answer:

the first one

Step-by-step explanation:

this picture has the workings

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2 years ago
An alloy is composed of nickel, zinc, and copper in a ratio of 7:2:9. How many kilograms of each metal are needed to make 3.6 kg
ivolga24 [154]

Answer:

Nickel= 1.8 kg

Zinc= 0.4 kg

Copper= 1.8 kg

Step-by-step explanation:

7:2:9

7=nickel

2=zinc

9=copper

7+2+9=18

18×2=36

7×2=14 2×2=4 9×2=18

Divide by 10

14÷10=1.4 4÷10=0.4 18÷10=1.8

1.8+1.4+0.4= 3.6

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0.4=zinc

1.8=copper

8 0
3 years ago
What is the exact value of the exponential equation, 4(10)5x=200 ?
Rasek [7]

Answer:

4(10)5x=200 = x=log50 / 5

Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
Been working on this for too long. thank u :)
Ket [755]

Answer:

Im not a 100% sure but my best guess would be the 3rd equation:

f(x) = (x - 1) (x + 3)

Please let me know if I was wrong, but i hope this helped you!

8 0
2 years ago
The temperature falls from 0 degrees to -12.4 degrees in 3 hours. Which expression finds the change in temperature
Xelga [282]

Answer: should be 4.13

Step-by-step explanation: -12.4 divided by 3 is -4.13333333333 and goes on

3 0
2 years ago
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