10, 14, 18 ....
notice, we get the next term by simply adding 4 to the current term, thus "4" is the "common difference, and we know that 10 is the first term.
Answer:
25%
Step-by-step explanation:
3/4 (the probability of drawing a quarter) would equal 75% plus 1/4 (the coin that isnt a quarter) would equal 25% so 75% + 25% = 100%
After 5 tests, her average was 88. To have a seven-test average of 90, the total must be:
Her average after 5 tests was 88. Her total score on the 5 tests is:
Subtract:
Find the average by dividing by 2:
Her average must be 95