Answer:
84%
Step-by-step explanation:
Henry completed a total of 50 questions. From these 50 he predicted 36 were right and this means he also predicted that 14 were wrong (50-36 = 14). From these predictions 5 out of 36 from the ones that he predicted were right were actually wrong and 3 of the 14 questions (14-11 = 3) he predicted were wrong were actually right. Meaning in total he wrongly predicted 8 questions which means he predicted 42 correctly ...
42 / 50 = 0.84 = 84%
Therefore, Henry's prediction accuracy is 84%
Answer:
-4/5
Step-by-step explanation:
okay well first you have to make each fraction into improper fractions
2 1/2 going into 3/2 and -1 7/8 into -15/8
and then do keep change flip keeping the first fraction (3/2), changing the division sign into a multiplication sign, and flipping the numerator and denominator of -15/8 into 8/-15
3/2 × 8/-15 = 24/-30 = 4/-5
also
4/-5 = -4/5
Answer: infinitely many solutions
Answer:
a
Step-by-step explanation:
if you plug 4 in for x it solves it
