1st car = 3x
2nd car = 3(x-12)
3x + 3(x-12) = 570
3x + 3x-36 = 570
6x = 570 +36
6x = 606
x = 606/6 = 101
101-12 = 89
fast car = 101 km per hour
slower car = 89 km per hour
Answer:
THe answer is C. Zero
Step-by-step explanation:
The lines never intersect so there is no answer.
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Answer:
The value of x is 4 .
Step-by-step explanation:
Given as :
The two triangle is as
Let The smaller triangle = DEC
Let The larger triangle = ABC
The measure of side EC = a
The measure of side BC = x
∵ side BC = side EC (as both sides of triangle are equal)
So, x = a + a
i.e x = 2 a
From the figure shown it is clear that both triangles are similar
So, the ratio of triangles are equal
i.e =
or, =
Or, =
Or, 3 x - 5 = 7
Or, 3 x = 7 + 5
Or, 3 x = 12
∴ x =
i.e x = 4
Hence, The value of x is 4 . Answer
Answer:
Option (1)
Step-by-step explanation:
Given:
CF ≅ DF
CE ≅ DE
To prove:
ΔCFE ≅ ΔDFE
Solution:
From ΔCFE and ΔDFE,
Statements Reasons
1). CF ≅ DF 1). Given
2). CE ≅ DE 2). Given
3). FE ≅ FE 3). Reflexive property
4). ΔCFE ≅ ΔDFE 4). By SSS property of congruence
Therefore, SSS postulate of congruence will be the answer.
Option (1) will be the answer.