Answer:
4/10
Step-by-step explanation:
4/10 is equal to 2/5, and 4+6=10
So Regina has 120 coins=total
120=total
we will use q=number of quarters and d=number of dimes
120=d+q
she has 10 more dimes than quarters
d=q+10
so if we susitute this into the equation then we get
120=(q+10)+q
add like terms
120=2q+10
subtract 10 from both sides
110=2q
divide both sides by 2
55=q
she has 55 quarters
subtitute into second equation
d=10+55
d=65
dimes=65
quarters=55
Answer:
slope = -2
Step-by-step explanation:
Slope formula:
Given points:
(3 -4) = (x1, y1)
(-2, 6) = (x2, y2)
To find the slope, input the given points into the slope formula:
Solve:
6 - (-4) = 6 + 4 = 10
-2 -3 = -5
Simplify:
The slope is -2.
Answer:
Step-by-step explanation:
The given expression is
This is in the form;
Rewrite to get
We split the middle term to obtain;
Factor to get;
Factor further to get;
We simplify further to get;
Answer:
(x+9)(x+9)=25
Step-by-step explanation:
x^2+18x+81=25
or x^2+(9x+9x)+81=25
or x^2+9x+9x+81=25
or x(x+9)+9(x+9)=25
:: (x+9) (x+9) =25