Answer:
Number of boys = 6
Step-by-step explanation:
It is given that:
Number of girls in school club = 16
Let,
b be the number of boys.
g be the number of girls.
g = 2b + 4
Putting g=16
16 = 2b + 4
16 - 4 = 2b
2b = 12
Dividing both sides by 2
Therefore,
Number of boys = 6
Answer:
hertz (Hz)
Explanation:
The SI unit for frequency is the hertz (Hz). One hertz is the same as one cycle per second.
Answer:
x = 80
Step-by-step explanation:
Let x be the unknown number
1/2 x - 10 = 30
Add 10 to each side
1/2x -10+10 = 30+10
1/2x = 40
Multiply each side by 2
1/2x * 2 = 40*2
x = 80
Answer:
J'(-4, -1)
K'(-2, -5)
L'(2, -5)
M'(3, -1)
Step-by-step explanation:
Reflection over the line y=1 is equivalent to the transformation ...
(x, y) ⇒ (x, 2-y)
Then the transformed coordinates are ...
J(-4, 3) ⇒ J'(-4, -1)
K(-2, 7) ⇒ K'(-2, -5)
L(2, 7) ⇒ L'(2, -5)
M(3, 3) ⇒ M'(3, -1)
Answer:
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