Your test grades are 70. 85. 95. 93 and 94. You have one more test and want an average of an 86. What must
you earn on your next test?

79

Step-by-step explanation:

Let last test score be y

Average = sum of test scores/ number of test scores.

Average was given in question = 86

86= 70+85+95+93+94+y/6

86= 437+y/6

Cross multiply

86*6 =437+y

516= 437+y

Collect like terms

516-437=y

Y=79

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

sadsdda

step-by-step explanation: