So
if x is the number she spent on each sister and y is the number she spent on each nephew then
180=3x+2y
she wants to spend 15 dollars more on sisters than nephews
so
x=15+y
solve
we have
180=3x+2y and
x=15+y
subsitute 15+y for x
180=3(15+y)+2y
180=45+3y+2y
180=45+5y
minus 45 both sides
135=5y
divide both sides by 5
27=y
solve for x
x=15+y
x=15+27
x=42
she spent $42 on each sister
If you would like to solve blank of 100 equals 16%, you can calculate this using the following steps:
x of 100 equals 16%
x * 100 = 16%
x * 100 = 16/100 /100
x = 16/100 / 100
x = 0.0016
The correct result would be: 0.0016 of 100 equals 16%.
Answer:
√50= 5√2
Step-by-step explanation:
50=25*2
√50=√25*2
√50=√5*5*2
√50= 5√2
Answer: none of them is right, did you meant maximum 4 and minimum 2?
Step-by-step explanation: cos x gets values between 1 and -1.
If you add 3 you get values between 4 and 2.
9514 1404 393
Answer:
y = 5x
Step-by-step explanation:
The point (0, 0) tells you the line goes through the origin, so represents a proportional relationship. The slope is simply the ratio of y to x, or 5/1 = 5.
The equation of the line is ...
y = mx + b . . . . . . line with slope m and y-intercept b
y = 5x . . . . . . . . . . line with slope 5 and y-intercept of 0 (the origin)