She started with 60 pennies
<h3>Ratios and propotions</h3>
Let the number of a bunch of pennies she has to be "x"
If she gives 1/3 of her pennies to her older brother, she will have 2/3 x remaining
If she gives 2/5 of her remaining pennies to her younger sister, she will have 2/3x- (2/5 of 2/3x) = x remainijg
If Sally has 24 pennies remaining, then;
2/3x - 4/15x = 24
10x-4x/15 = 24
6x/15 = 24
6x = 15 * 24
x = 60
This means that she started with 60 pennies
Learn more on ratios here:
brainly.com/question/2914376
Answer:
both angle will be 45°.
let the same angle be x.
90°+x+x=180°[angle sum property]
90°+2x=180°
2x=180°-90°
2x=90°
x=90°/2
x=45°
so, other angles are 45° and 45°
The slope is equal to m in equation y=mx+b
Therefore the slope is m = -1 or A