First option:
y=money saved
x=number of months
y=30x+500
Second option:
y=50x+200
We have this system of equations:
y=30x+500
y=50x+200
We can solve this system of equations by equalization method
30x+500=50x+200
30x-50x=200-500
-20x=-300
x=-300/-20
x=15
so;
y=30x+500
y=30(15)+500
y=450+500
y=950
Answer; after 15 months, she would save the same amount using either option, the amount saved in either option will be $950.
Divide the sides of the larger triangle by the corresponding side of the smaller one:
18/7.2 = 2.5
Figure A is 2.5 times the size of figure B
The scale factor is 2.5
The change in temperature for 1 hour would be -5. hope this helps.
Answer:
20.5
Step-by-step explanation:
u have the answer it shouldnt be difficult for u to solve for 3/7 x 48
The expression for the number of sixth graders in terms of x is 
<h3><u>Solution:</u></h3>
Given that , 
of the students in school are in sixth grade
To find: Expression for number of sixth graders
Let the total number of students in school be "x"
From given statement,
of the students in school are in sixth grade
Which means, of total number of students are in sixth grade
Let "n" be the number of students in sixth grade
Then by given statement,
n = of total number of students
Thus the expression in terms of x is found
