Answer:
15 boys.
Step-by-step explanation:
A class constituting of boys and girls:
Has a total of 35 students.
The number of girls outnumber that of boys by 5.
Let the number of boys be x such that the number of girls is x + 5.
∴
x + x + 5 = 35
2x + 5 = 35
2x = 35 - 5 = 30
x = 30/2 = 15
So there are 15 boys and 35 - 15 = 20 girls.
*<em>I believe you can now solve the second question.</em>
We have the 2 equations
1- ) 5x-8y=6
2-) -6x-3y=18
multiplying the first equation by 3 and the second equation by 8 then subtracting
1-) 15x-24y=18
2-) -48x-24y=144
-48x-24y=144
(-) 15x-24y=18
-------------------------------------
-63x = 126
x=-2
substituting in equation 1
5(-2)-8y=6
-10-8y=6
-8y=16
y=-2
the soultion is (-2,-2)
Answer:
Step-by-step explanation:
25 × 4.5= 112.5 and that is you answer
Answer:
Step-by-step explanation:
King avenue becomes the base
He turns left into the side meet right angle side.
Therefore the hypotenuse cuts through the houses and becomes a measure
Hypotenuse + King Ave B = 3rd Street A
Hypotenuse + 7000mB = 3rd St 5000m A.
H^2= 7m^2B - 5m^2A
√H74 = √25A +√B49
H = √H74 = 8600m