Boys: x
gilrs: y
From the text of the task:
Replacing x:
So there are 28 girs and 20 boys
Answer:
19
Step-by-step explanation:
To find 20% of 95 multiply 95 by 0.20, p5 x 0.20=19
Well, we do not know how many fish Rita has, so lets represent that with y. Anyway, it says that catherine has twice as many fish as Rita. So that will be 2y. And Stella has twice as many as catherine, so that will be 2 x 2y. And that will be 4y. So Ruth has y, catherine has 2y and stella has 4y. And the total is 70. So that means that the number of fishes added together will be 70. That can be represented as;
y + 2y + 4y = 70
y is the same as 1y. And when you add y + 2y + 4y, you will get 7y. So
7y=70
Divide the both sides by 7. That will be;
y= 7 . So Rita has 7 fishes. Hope i helped.
Answer:
A and D both have a value of -4
Step-by-step explanation:
A. (-4) = -4
B. |-4| = positive value of what is inside = 4
C. |4|
= positive value of what is inside = 4
D. -|4| = -positive value of what is inside = -4
Answer:
s = 1.35 (See explanation!)
Step-by-step explanation:
To write an equation, you need to know that all four sides of a square are equal. Since each side is equal, it can be represented by the same variable or value. I'll use s for the variable:
Equation:
4s = 5.4
Note: the 4s is the total perimeter (4 * side)
Now, solve:
4s = 5.4
Divide by four to isolate the s:
4s/4 = 5.4/4
Finally:
s = 1.35
