Answer:
$3.49
12 quarters,4 dimes,1 nickle, 4 pennies
Step-by-step explanation:
First remember that;
Quarter=25 pennies
Dime=10 pennies
Nickel =4 pennies
I cent =0.01$
Given the amount as $3.50
Assume you use 4 quarters, this means a whole dollar, so it will be;
1 dollar = 4quarters
3 dollars=?
cross multiply
3×4=12 quarters
The remaining $0.49
Here identify 40 cents, which is 40 pennies
But 10 pennies=1 dime
so 40 pennies=?
cross-multiply
(40×1)÷10=4 dimes
and a nickel for 4 pennies.
Answer:
Hey there!
4a^2-20a+25 can be factored to (2a-5)(2a-5). Thus, the side length of the square is 2a-5. Basically, we want to find two of the same binomials that can multiply to get 4a^2-20a+25. For example, 2a times 2a = 4a^2, and you can use the foil method to solve for the rest.
4a^2 - 20a +25
(2a)^2 - 20a + (-5)^2
(2a - 5)^2
(9a2 − 16b2) is just a difference of squares, and can be factored to (3a+4b) and (3a-4b). The difference of squares formula can give us this.
Let me know if this helps :)
Answer:
The equation would be B) y = 5x + 17
Step-by-step explanation:
To start, you need to locate the slope of the first equation. Since the slope is the coefficient of x, we know it to be -1/5. Now, the perpendicular slope is the opposite and reciprocal of that, which makes the new slope 5.
Now that we have this, we can use the point and the slope in point-slope form to get the equation.
y - y1 = m(x - x1)
y - 7 = 5(x + 2)
y - 7 = 5x + 10
y = 5x + 17