Alen everage score after sixth test is 83 if alen earns a score of 97 on the seventh test what is her new average

85

Step-by-step explanation:

Average is calculated as

average =

After 6 tests

= 83 ( multiply both sides by 6 )

total = 83 × 6 = 498

New total after test 7 = 498 + 97 = 595, hence

new average = = 85

15% chance.

step-by-step explanation:

3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)