If we use 22/7 as pi we can say...
22/7 / 90 =
22/7 x 1/90 =
22/630 = 11/315 (in fraction form)
11/315 is the same as saying 11 divided by 315 which would work out to
about .035 rounded to the nearest thousandth
Answer:
a = 2
Step-by-step explanation:
14a - 21 - 5a = -3
9a - 21 = -3
9a = -3 + 21
9a = 18
a = 2
Responder:
3 m
Explicación paso a paso:
Dado que:
Longitud, L = 25 m
Ancho, W = 8 m
Volumen = capacidad = 600.000 litros
1m³ = 1000 litros
x = 600.000 litros
600.000 litros / 1000 = 600 m³
Volumen = Largo * ancho * alto
600 = 25 * 8 * h
600 = 200 horas
h = 600/200
h = 3 m
Answer:
width = 2 cm
Step-by-step explanation:
are of rectangle is equal to length times width
x is the width, then length is 3x + 4
so x(3x + 4) = 20
3x^2 + 4x = 20
3x^2 + 4x - 20 = 0
The formula to solve a quadratic equation of the form ax^2 + bx + c = 0 is equal to x = [-b +/-√(b^2 - 4ac)]/2a
so a = 3
b = 4
c = -20
substitute in the formula
x = [-4 +/-√(4^2 - 4(3)(-20))]/2(3)
x = [-4 +/- √(16 + 240)]/6
x = [-4 +/- 16]/6
x1 = (-4 + 16)/6 = 2
x2 = (-4 - 16)/6 = -20/6
since the width can't be a negative number, x2 is not the right answer
so x = 2