Let x = number of white marbles and y = number of yellow marbles.
x + y = 57 => x = 57 - y
Also, x = 3 + 5y
Substitute x for y.
57 - y = 3 + 5y => 57 - 3 = 54 = 6y
So, y = 9
Since x (our answer) = 3 + 5 (9),
x = 48.
Check: 48 + 9 = 57 total
Answer:
78 emails
Step-by-step explanation:
Given
Represent sent emails with x and received with y.
So, we have:
-- First statement
-- Second statement
Required
Determine the number of emails received (y)
Make x the subject in
Substitute 114 - y for x in
Open bracket
Collect Like Terms
Divide by 3
No
when 3 divided by 4 is converted into a decimal, it is 0.75 which does not equal 0.34
0.34 can also be written as 34/100
and 3/4 can be written as 75/100
therefore 0.34 and 3/4 are not equivalent
Answer is (9, 7)
Step by step
Rule: 270 degrees counterclockwise about the origin our point A(x,y) becomes A'(y,-x).
This means, we switch x and y and make x negative.
So
(-7, 9) ➡️ ( 9, 7)
Answer:
i did it again i did i did not do did it
