Answer:
(-3, 5)
Step-by-step explanation:
plug y = 5 into the second equation
x(5) = -15
5x = -15
x = -3
(-3, 5)
Answer:
i'll say the second one
Step-by-step explanation:
Given- 90% of runner completed the marathon.
out of which 30% are man.
To proof - let the total number of runner be y.
the men completed the marathon be 30% of the 90%.
thus we have
30% of 90% of y = 270
×
×y = 270
now solving the above equation
we get
Thus solving the equation
y = 1000
Thus the total runners of men who completed marathon be 1000.
Hence proved
Answer:
The strategy Pedro tend to do isn't worth, because using rigid transformation to place on figure onto the other won't prove that those figures are similar, but it would prove if they are congruent.
Remember that similarity is about proportionality between dimensions of those figures, so it's not about congruence. That means the figures won't match when we place one onto the other.
To prove similarity, Pedro should divide each pair of corresponding coordinate, if all divisions give the same result, that means those figures are similar.
<h3>Therefore, Pedro is not right.</h3>
Answer:
Step-by-step explanation:
Y= -3x + 4..........(1)
Y= 4x - 10...........(2)
Substituting (1) into (2)
-3x + 4 = 4x - 10
-3x - 4x = -10 - 4
-7x = -14
x = -14/-7
x = 2
Putting x in (2)
y = 4(2) - 10
y = 8 - 10
y = -2
