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3 years ago

A package of twelve cans of the black beans cost $6.84. What is the cost of three cans of black beans?

Mathematics

1 answer:

valkas [14]3 years ago

6 0

Answer:

$1.66

Step-by-step explanation:

First you need to divide $6.74 by 12 then you will get $0.55. Next you need to multiply $0.55 by 3 cans of black beans and you should get $1.66.

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The volume of a sphere whose diameter is 18 centimeters is π cubic centimeters. If its diameter were reduced by half, its volume

lbvjy [14]

Answer:

3053.5517 cm^3 ; 1/8

Step-by-step explanation:

Given the following :

Volume (V) of sphere = (4/3)πr^3 where r = radius

Diameter of sphere = 18 ; radius(r) = diameter / 2 = 18/2 = 9cm

V = (4/3) × π × 9^3

V = 1.3333 × π × 729

V = 3053.5517 cm^3

When diameter(d) is reduced to half

d = d/2

Volume (V1) of sphere with diameter 'd' =

V1 = (4/3)π(d/2)^3

Volume (V2) of sphere with diameter 'd' reduced to half, d = d/2, d/2 * 1/2 = d/4

V2 = (4/3)π(d/4)^3

V1 / V2 = [(4/3)π(d/2)^3] / [(4/3)π(d/4)^3]

V1 / V2 = (d/2)^3 / (d/4)^3

V1 / V2 = [d^3 / 2^3] / [d^3 / 4^3]

V1 / V2 = 8 / 64

V1 / V2 = 1 / 8

5 0

3 years ago

Find the distance between C(-2,-6) and D(4, -3).

suter [353]

Answer:

3 $\sqrt{5}$

Step-by-step explanation:

Calculate the distance d using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = C(- 2, - 6) and (x₂, y₂ ) = D(4, - 3)

CD = $\sqrt{(4+2)^2+(-3+6)^2}$

= $\sqrt{6^2+3^2}$

= $\sqrt{36+9}$

= $\sqrt{45}$ = $\sqrt{9(5)}$ = 3 $\sqrt{5}$ ← exact value

7 0

3 years ago

How to solve this linear equation problem 5s + s = -48

alexandr402 [8]

5s+s= -48
⇒ 6s = -48
⇒ s= -48/6
⇒ s= -8.

The final answer is s=-8~

6 0

3 years ago

Read 2 more answers

Find the value of y, given value of x

baherus [9]

Answer:

a. y = 2+4.3x when x = -6

substituting value of x, we get

y=2+4.3*-6=2-25.8=23.8

b. y = (x-3)² when x = 9

substituting value of x, we get

y=(9-3)²=6²=36

c. y=x-2 when x = 3.5

substituting value of x, we get

y=3.5-2=1.2

d. y=5x-4 when x = - 2

substituting value of x, we get

y=5*-2-4=-10-4=-14

5 0

1 year ago

Read 2 more answers

If s(x) = 2 – x2 and t(x) = 3x, which value is equivalent to (s o t)(-7)?

marishachu [46]

Answer:

The correct answer is A) -439

Step-by-step explanation:

8 0

3 years ago