Answer:
Step-by-step explanation:
radius 70/2=35 cm
circumference=2πr=2π×35=70π cm
time taken to complete one revolution=0.8 s
or distance covered in 0.8 s=70π
distance covered in 1 s=70π/0.8=700 π/8=175 π/2 s=87.5 π≈274.9 cm
speed=274.9 cm/s=2.749 m/s
2 3/5
What are the questions for 2&3?
We know that
<span>The absolute value of a number is its size. For positive numbers the size is the same as the number. For negative numbers it is the corresponding positive number.
</span>
in this problem
<span>|-8|</span>=8
<span>
the answer is
8
</span>
Answer: Daniel has $22 in his savings account balance.
Step-by-step explanation:
Let Daniel's savings account balance be x
and Henry's savings account balance be y, then as given Daniel's savings account balnce is 20 times that of Henry's, We get
...........(1)
And also total amount of both savings account is $462 so we get
......(2)
Now by substituting values of x from (1) into (2) we get,

And 
So, Daniel's savings account balance is $440
and Henry's savings account balance is $22