Answer:
Answer: ½
Step-by-step explanation:
» Reduce the denominator and numerator by dividing all by 8/8
Answer:
the answer is C
Step-by-step explanation:
just substitute the letters
Travel time when Carlos traveled at 52 miles/hr = t1
Travel distance when Carlos traveled at 52 <span>miles/hr = 52 t1
</span>
Travel time when Maria traveled at 54 <span>miles/hr = t2
</span>Travel distance when Maria traveled at 54 miles/hr = 54 t2
total time
t1 + t2 = 4.1
total distance
52 t1 + 54 t2 = 217
<span>( t1 + t2 = 4.1 ) * 52
</span>52 t1 + 52 t2 = 213.2
Subtract last 2 equations
2 t2 = (217-213.2)
2 t2 = 3.8
t2 = 1.9
t1 = 2.2
Hours Maria driven = 2.2 hours
Answer:AC = 20
BK = 9.6
Step-by-step explanation:
AC is found using the Pythagorean theorem in the usual way:
AC² = AB² + BC²
AC² = 12² + 16² = 144 +256 = 400
AC = √400
AC = 20
You may recognize this is a 3-4-5 triangle scaled by a factor of 4.
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Then BK is found using similar triangles. All of the triangles in the figure are similar*, so ...
long side / hypotenuse = BC/AC = BK/AB
BK = AB(BC/AC) = 12(16/20) = 12×0.8
BK = 9.6
1x= y
Step-by-step explanation:
x being the weight and y being the cost