Answer:
Therefore,
.......Equation
Angelica's Brother's age is 11 years old.
Step-by-step explanation:
Given:
Let the current age of Angelica's Brother be 'x' years old
Angelica's current age is 13 years old,
According to given condition,
Therefore the Equation will be,
On solving this equation we get
Therefore,
Angelica's Brother's age is 11 years old.
Therefore,
.......Equation
Angelica's Brother's age is 11 years old.
Answer:the first one I think
Step-by-step explanation:
Answer:
The donuts cost $0.75 and the cookies cost $0.6
Step-by-step explanation:
You need to create a system of equations:
20d + 30c = 33
5d + 2c = 4.95
Now, let's isolate the cookies on the second equation:
2c = 4.95 - 5d
Multiply it per 15 to get the value of 30 cookies:
30c = 74.25 - 75d
Substitute in the first equation:
20d + 74.25 - 75d = 33
-55d = -41.25
d = -41.25/-55
d = 0.75
Now substitute the value of d in the second equation to find the value of c:
5•0.75 + 2c = 4.95
3.75 + 2c = 4.95
2c = 4.95 - 3.75
2c = 1.2
c = 1.2/2
c = 0.6
Answer:
Step-by-step explanation:
Distance formula: D = Square root (x^2-x^1)^2+(y^2-y^1)^2
H(-3,-4) Q(-8,1)
x1 y1. x2 y2
Plug in umbers
(-8+3)^2+(1+4)^2
(-5)^2 + (5)^2
25 + 25
Square root of 50 = 7.07106781187
7.1
Square root was always there I just don't know how to put it on a laptop.
Hope this helps!
:)
70/60 would be per minute. divide that quotient by 60 once more to get ~.2 miles per second.
