Answer:
a.
Step-by-step explanation:
Answer:
it ends in an 8 so certain numbers that don't go into 8 won't go into that either. 3, for example.
9514 1404 393
Answer:
1200 ounces
Step-by-step explanation:
Let x represent the weight of 30% copper that needs to be added to the mix. Then the total weight will be (600+x) ounces, and the amount of copper in the mix is ...
0.30x +0.60(600) = 0.40(600 +x)
0.3x +360 = 240 +0.4x . . . . . simplify
120 = 0.1x . . . . . . . . . . . . . subtract 0.3x+240
1200 = x . . . . . . . . . . multiply by 10
1200 ounces of 30% copper should be added to the mix.
A ratio shows us the number of times a number contains another number. The proportion of students that are in middle school and chose french fries is 0.14.
<h3>What is a Ratio?</h3>
A ratio shows us the number of times a number contains another number.
Given that the number of students are in middle school and choose french fries is 56, while the total number of students is 400. Therefore, the proportion of students that are in middle school and chose french fries are,
Proportion = (Number of students in middle school who choose french fries) / (Total number of students)
= 56 / 400
= 0.14
Hence, the proportion of students that are in middle school and chose french fries is 0.14.
Learn more about Ratios here:
brainly.com/question/1504221
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