Translate this phrase into an algebraic expression.
54 decreased by twice Vidya's savings
Use the variable y to represent Vidya's savings.
we have
<h2>54-2y</h2>
because
twice Vidya's savings -------> 2y
so
54 decreased by twice Vidya's savings
54-2y
Answer:
1 hour
Step-by-step explanation:
Answer:
4.A
5.c
Step-by-step explanation:
4.112+x=180
x=180-112=68
A
5.
7x+3x-30=90
10x=90+30
10 x=120
x=12
c
Substitution.
Here is an example.
Let x be equal to 3 and y equal to 3.

From this we can conclude that the values of both x and y are equal to three therefore x and y have the same value and are equal.

Here in your case we have:

Hope this helps.
r3t40
The answer would be A. He should use the mean because it is in the center of the data. I hope this helped ^^