Answer:
1,4.7
Step-by-step explanation:
x + y = 179
2/3x + 3/4y = 128
^ these are the equations
x + y = 179 -multiply by 3
2/3x + 3/4y = 128-multiply by -4
--
3x + 3y = 537 (result of multiplying by 3)
-8/3x - 3y = -512 (result of multiplying by -4)
--add
1/3x = 25
x = 25 * 3
x = 75
--
x + y = 179
75 + y = 179
y = 179 - 75
y = 104
(is this better?)
Company a = 22 + 0.07m
company b = 8 + 0.12m
We are looking for the time when the prices are equal. i.e. the price of company a = the price of company b
company a = company b
22 + 0.07m = 8 + 0.12m
22 - 8 = 0.12m - 0.07m
14 = 0.05m
m = 14/0.05
m = 280
Therefore, the two companies will cost the same if you talk for 280 minutes
Answer:
e
no, the numbers are not pythagoras triple
Step-by-step explanation:
find the complete question in the attached image
If the angle is a right angle would be determined using Pythagoras theorem
The Pythagoras theorem : a² + b² = c²
where a = length
b = base
c = hypotenuse
20² + 10² =
400 + 100 = 500
500 is not equal to the square of 25
so it is not a right angled triangle
Answer:
he should have 413 seeds in each row
Step-by-step explanation:
59*35=2065
2065/5=413
Answer:
x=1, y=-1. (1, -1).
Step-by-step explanation:
y=2x-3
y=-3x+2
--------------
2x-3=-3x+2
2x-(-3x)-3=2
2x+3x=2+3
5x=5
x=5/5
x=1
y=2(1)-3
y=2-3
y=-1