First solve the second equation to equal x.
x + y = 550
Subtract y from both sides.
x = 550 - y
Put this into the first equation in place of x.
3.75 (550 - y) + 4y = 2160
Multiply everything in the parenthesis by 3.75
2062.5 - 3.75y + 4y = 2160
Combine like terms.
2062.5 + 0.25y = 2160
Subtract 2062.5 from both sides.
0.25y = 97.5
Divide 0.25 on both sides.
y = 390
Put this into the second equation in place of y.
x + 390 = 550
Subtract 390 from both sides.
x = 160
So x = 160 and y = 390
Hope this helps!
Multiple
7•7+14=3•3
Calculate
49+14=9
Equality
63=9
The link leads to a single table, and that table doesn't show [ y = 18x ].
You're looking for a table in which each 'y'-value is
18 times the 'x'-value that's right next to it.
Good luck in your quest.
The number (x) that is (=) 10 less than (-) 6
x = 6 - 10 Subtract
x = -4
Answer:
68.70 yd.
Step-by-step explanation:
First we would convert these into decimals. 5 1/2 would turn into 5.50, and 1 2/3 is 1.66.
(1.66 yd.) * 5.50 yd. =
7.6338428 yd.
7.6338428 yd.*3*3=
= 68.7045852 yd.
shorten the decimal for a shorter, less accurate answer.
