Answer:
10 %
Step-by-step explanation:
let the percent be x
according to the question
7.8 = x % 0f 78
7.8 = x /100 * 78
7.8*100 = 78x
780 = 78x
780/78 = x
10 = x
Answer:
3/4
Step-by-step explanation:
You can simplify it by looking for what divides into both numbers. The lowest possible number is 3 because it can go into both 9 and 12.
9/3=3
12/3=4
3/4
Answer:
Circle D
Step-by-step explanation:
Circle A and B contain elements. We can tell because the circle only contains one type of substance. We can also conclude that A and B are probably diatomic elements. Circle C contains a compound. This leaves us with Circle D which contains a mixture as it has elements and compounds.
Mean: add all the numbers & divide by how many numbers thee are
Median: arrange the numbers from least to greatest then mark off one from each side until you get to the middle number. That is the median
Mode: To find the mode, or modal value, it is best to put the numbers in order. Then count how many of each number. A number that appears most often is the mode.
Range: To find range, find the highest number & subtract the lowest number from it. That number is the range
Answer:
21 to 3
70 to 10
Step-by-step explanation:
28÷7 = 4
21÷7 = 3
70÷7 = 10
