A metalsmith is mixing two molten metals, each containing different percentages of silver. The table shows the amount of each mo
lten metal used. Which two expressions are both equivalent to t, the total number of grams of silver in the mixture?
A: (15)(0.75) and 0.7(15 – x) + 0.9x
B: (15)(0.75) and 0.7(15 – x)(0.9x)
C: 15 + 0.75 and 0.7(15 – x) + 0.9x
D: 15 + 0.75 and 0.7(15 – x)(0.9x)
A: (15)(0.75) and 0.7(15 – x) + 0.9x
B: (15)(0.75) and 0.7(15 – x)(0.9x)
C: 15 + 0.75 and 0.7(15 – x) + 0.9x
D: 15 + 0.75 and 0.7(15 – x)(0.9x)
2 answers:
You might be interested in
Answer:
1.875 or cups of pretzel
Step-by-step explanation:
The number of cups needed is equivalent to the probability of pretzel in the mix times the number of cups in the mix.
-The probability of pretzel is :
We multiply this probability by the number of cups of the mix:
Hence, 1.875 or 1/7/8 cups of pretzel is needed.