Answer:
At 300 miles
Step-by-step explanation:
a 170 230 290
b 110 200 290
Mile 100 200 300
X + y = 179
2/3x + 3/4y = 128
^^ these r ur equations
x + y = 179 <===multiply by 3
2/3x + 3/4y = 128 <== multiply by -4
---------------------
3x + 3y = 537 (result of multiplying by 3)
-8/3x - 3y = -512 (result of multiplying by -4)
-------------------add
1/3x = 25
x = 25 * 3
x = 75
x + y = 179
75 + y = 179
y = 179 - 75
y = 104
so u would put checks beside : 1,4,7
Answer:
slope=1
Step-by-step explanation:
because slope=-A/B
slope= -2/-2
slope =1
The centroid is 1/3 of the vertical distance between QV
QV = 3 x VT = 3 x 5 = 15
QT = 15-5 = 10