Answer:
Rob made 31, and Matt made 24
Step-by-step explanation:
55 in total
Rob made 7 more do 55 - 7 = 48
48 / 2 = 24
24 for Matt
24 +7 = 31
31 for rob
I think it’s 3.2 but I don’t know
Using scientific notation, it is found that:
67 ns =
s
<h3>What is scientific notation?</h3>
A number in scientific notation is given by:

With the base being
.
In this problem, the amount is of 67 ns.
Each ns has
seconds, hence:

We want the base between 1 and 10(exclusive), hence, we move the decimal digit one digit to the left and add one to the exponent, and the representation is:
67 ns =
s
You can learn more about scientific notation at brainly.com/question/16394306
Answer:
y = 2
Step-by-step explanation:
20y - 21 = 10y - 1
20y = 10y + 20
10y = 20
y = 2
Hi there!
Your equation is asking 2/3 times a number will equal 8.
Now, to find that number all you have to do is divide 8 on 2/3, which would equal 12.
12 × 2/3 would equal 8.
Hope this helped! :D