The variable x represents the number of angelfish Carlos bought and the variable y represents the number of parrotfish he bought
.
Carlos bought 405 tropical fish for a museum display. He bought 8 times as many parrotfish as angelfish.
How many of each type of fish did he buy?
Which system of equations models this problem?
{x+y=405
y=8x
{x−y=405
y=8x
{x+4y=8
y=405x
{x+y=8
y=405x
Carlos bought 405 tropical fish for a museum display. He bought 8 times as many parrotfish as angelfish.
How many of each type of fish did he buy?
Which system of equations models this problem?
{x+y=405
y=8x
{x−y=405
y=8x
{x+4y=8
y=405x
{x+y=8
y=405x
2 answers:
You might be interested in
Given:
The equation is:
To find:
The error in the given equation and correct it.
Solution:
We have,
Taking left-hand side, we get
It is not equal to right-hand side . In the right hand side, there must be a negative sign instead of positive sign.
Therefore, .
Answer:
D. 8/2 +(-10)² = 104
Step-by-step explanation:
To find which statements are true, evaluate the expression for the given variable values. You do this by putting the numbers in place of the respective variables, then doing the arithmetic.
The respective expression values are ...
A 83 ≠ 37 . . . . (4/2) +9² = 2 +81 = 83
B 31 ≠ 61
C 52 ≠ 61
D 104 =104 . . . . true statement
__
I find it less tedious to write a function into a calculator or spreadsheet and let it do the repetitive math. Examples of the calculation are shown above.
