Answer:
a)6x = 16
Step-by-step explanation:
<h2><u>Finding the value</u></h2>
the ratio can be solved by <u>cross multiplication :</u>
6 : 2
8 : x
6*x = 8*2
6x = 16
answer is : <u>a) 6x = 16</u>
Simple interest formula:

where

=interest,

=principal (how much you put in at first),

=rate as a decimal, and

=number of years.
Let's plug in what we're given.

Calculate it out...

The interest earned is $70.00.
1 cm= 10 mm
7 cm= 70mm
difference between grasshopper and cockroach= 99mm - 70mm
= 29mm
Hey there the answer would be 300 minutes
Answer: x=4
Step-by-step explanation: You have to distribute the negative signs
x - (4x-7)= 5x-(x+21)
x - 4x + 7 = 5x - x - 21
- 3x + 7 = 4x - 21
28 = 7x
X = 4