Answer:
x=4,y=3
Step-by-step explanation:
x=19-5y if we transpose equation 2 for x.
Plug that into equation 1
4(19-5y)+3y=25
76-20y+3y=25
76-25=17y
51=17y
y=3
Plug y=3 into equation 2
x+5(3)=19
x=19-15=4
1296(-1.75)= -2268;
1296(-1)= -1296;
1296(-0.25)= -324;
1296(0)=0;
1296(0.25)=324;
1296(0.5)=648;
1296(0.75)=972);
1296(1)=1296
Answer:
15
19
14
Step-by-step explanation:
Sofia is correct because if you replace x with 7 you multiply 3 and 7 and get 21 then add 4 and your final answer will be 25
Answer:
GH = 20
Step-by-step explanation:
We have that
FH = FG + GH ← substitute values
4x + 8 = x + 5x
4x + 8 = 6x ( subtract 4x from both sides )
8 = 2x ( divide both sides by 2 )
4 = x
Hence GH = 5x = 5 × 4 = 20GH = 20