5x+7y=25
5x-2y=-65
subtract both of the equations
5x-5x=0
7y--2y= 7y+2y=9y
25--65=25+65=90
0+9y=90
9y=90
divide both sides by 9 to get y by itself
9y/9=90/9
cross out 9 and 9 which becomes 1*1*y=y
90/9=10
y=10
find x by using the substitution method
5x+7y=25
5x+7(10)=25
5x+70=25
move +70 to the other side
sign changes from +70 to -70
5x+70-70=25-70
5x=-45
divide both sides by 5 to get x by itself
5x/5=-45/5
cross out 5 and 5 then becomes 1*1*x=x
-45/5=-9
x=-9
answer:
(-9,10)
Answer:
In the procedure
Step-by-step explanation:
we know that
A polynomial which has only one term is called monomial
The degree of a monomial is defined as the sum of all the exponents of the variables
<em>Examples</em>
If the monomial has only one variable
3x² -----> is a monomial of the 2 degree with a leading coefficient of 3
If the monomial has more than one variable
3xy ----> is a monomial of the 2 degree with a leading coefficient of 3
Answer:
2.50t + 350 = 3t + 225
Step-by-step explanation:
Let t represent the number of tickets that each class needs to sell so that the total amount raised is the same for both classes.
One class is selling tickets for $2.50 each and has already raised $350. This means that the total amount that would be raised from selling t tickets is
2.5t + 350
The other class is selling tickets for $3.00 each and has already raised $225. This means that the total amount that would be raised from selling t tickets is
3t + 225
Therefore, for the total costs to be the same, the number of tickets would be
2.5t + 350 = 3t + 225
Answer:
3.5
Step-by-step explanation:
You would do 14 divided by 4.
1pound =3.5
Answer:
The type of angles of <1 and <5 are corresponding angles
Step-by-step explanation:
