Start with
b/4.9=-20.6
Multiply both sides by 4.9 you will be left with b
b=-20.6*4.9
b=-100.94
now to check
-100.94/4.9=-20.6
Answer:
A-In a paragraph proof, statements and their justifications are written in sentences in a logical order.
B-A two-column proof consists of a list statements and the reasons the statements are true.
D-A flowchart proof is a visual way of describing the statements and reasons for a proof.
Step-by-step explanation:
Answer: speed of the car is 88 miles per hour
the speed of the motorcycle is 78 miles per hour
Step-by-step explanation:
Number of miles travelled by car = 312
Number of miles travelled by motorcycle = 272
Let x = speed of the car
Let y = speed of the motorcycle
If the car's speed is 10mph more than the motorcycle's, it means
x = y + 10 - - -- - - 1
Time taken for car to travel 312 miles is distance /speed = 312/x
Time taken for motorcycle to travel 272 miles is distance /speed = 272/y
The car travels 312 miles in the same time that a motorcycle traveled 272.
This means
312/x = 272/y
312y = 272x
y = 272x/312
Substituting y = 272x/312 into equation 1, it becomes
x = 272x/312 + 10
312x = 272x + 3120
312x-272x = 3120
40x = 3120
x = 3120/40 = 78 miles per hour
x = y + 10 = y + 78
x = 88 miles per hour
if she read 11/2 = 2 1/2 in and hour she would read 2 1/2*2 of 2 1/2+2 1/2 =5
she read 5 chapters and plz
Brainly
Answer:
The reciprocal is 25/12, therefore the number is 12/25, because 2 x 12 equals to 24, then plus 1, equals to 25, then it's 25/12. Not the best explanation but, better than no answer.
Step-by-step explanation: