Answer:
theres no picture
Step-by-step explanation:
Answer:
Option 'B' is correct.
Step-by-step explanation:
Since we have given that
Number of lemons used is denoted by 'y'.
Number of glasses of lemonade is denoted by 'x'.
As we can observe that ,
so we can write i as
By cross multiplication
<em>y=4x</em>
So, if write it in the form y=kx,
It will be y=4x.
Answer:
x = 3, v = -8
Step-by-step explanation:
Substitute x.
[5 • = -73 - 11v]
Isolate v.
5 = -73 - 11v
v = -8
Substitute v.
x = 
x = 3
Answer:
500 students.
Step-by-step explanation:
Since 150 students make up 30% of the school's student population, the equation 150/30=x/100. In order to find x, cross multiply x*30 and 150*100. Then set the two results equal to each other and solve. 15000=30x. 15000/30=500. x=500.
Answer:
c)21
Step-by-step explanation:
"To light a park, luminaries are placed along a length of 100 meters, if the first is placed in meter 1, the next in meter 4, the next in meter 7, and so on. in the following positions a luminary will be placed except in the subway:
a)13 b)19 c) 21 d)28? "
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Luminaries position:
It makes an AP with the first term of 1 and common difference of 3
The formula for this AP is:
- aₙ = 1 + 3(n-1) = 1 + 3n - 3 = 3n - 2
From the given options, only one is not in the same format:
because
- 21 = 3n - 2 ⇒ 3n = 23 and n= 23/3 is not an integer
Answer is: c) 13
