Saving I don’t know but please let me know :)
Let
x--------------> total volume of a glass
we know that
(4/7)x-70=(2/4)x------------> (4/7)x-70=(1/2)x--------> 2*(4/7)x-2*70=x
(8/7)x-140=x
<span>multiplied by 7 the expresion
</span>7*(8/7)x-7*140=7*x-----------> 8x-980=7x--------> x=980 cm³
the answer is
<span>the total volume of the glass is 980 cm</span>³
The mean is the average of a set of numbers, to find the mean, add all the numbers, then divide by the amount of numbers.
Step-by-step explanation:
x = 90- 55 = 35
y = 180- x
y= 180 - 35 = 145
z =180- (y +10)
z = 180 - (145 +10)
z = 180-155
z = 25
Please gimme brainliest
Answer:
X = 80°
Step-by-step explanation:
55+45=100
180-100=80 angles in a triangle=180°
So Y = 80
and Y=X because opposite angles around a point are equal
