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4 years ago

You have 1/3 pound of sand for a project. You split the sand equally into 4 boxes what is your answer

Mathematics

1 answer:

Svetach [21]4 years ago

8 0

Answer: 1/12

Step-by-step explanation: Take 4 (number of boxes) times 3 equals 12.

Each box would have 1/12 pound of sand.

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Anna007 [38]

Answer:

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Step-by-step explanation:

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3 years ago

-16t^2+20t+65 Quadratic Formula

Shalnov [3]

The value of T is

$\frac{-5+\sqrt{285} }{8}$ OR $\frac{-5-\sqrt{285} }{8}$

Step-by-step explanation:

Assumption: find the values of t

1. Equation is $-16t^{2}$ +20t+65

2. Identify values of a, b and c

a = -16
b = 20
c = 65

3. Write the quadratic formula

t = $\frac{-b±\sqrt{b^{2}-4ac } }{2a}$

4. Substitute the values of a, b and c in the formula

t = $\frac{-b±\sqrt{b^{2}-4ac } }{2a}$

t = $\frac{-20±\sqrt{20^{2}-4(-16)(65) } }{2(-16}$

5. Solve to find the possible values of t

t = $\frac{-20±\sqrt{20^{2}-4(-16)(65) } }{2(-16}$

$\frac{-5+\sqrt{285} }{8}$ OR

$\frac{-5-\sqrt{285} }{8}$

Keywords: Quadratic

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3 years ago

Read 2 more answers

Lisa collects rainwater in a barrel that weighs 25 pounds. When there are 10 gallons of water in the barrel, the total weight of

Zinaida [17]

Answer:

The equation that matches this situation is y = 8.34x + 25 ⇒ B

Step-by-step explanation:

The form of the linear equation is y = m x + b, where

m is the slope (rate of change)

b is the y-intercept (initial value)

The rule of the slope is m = Δy/Δx, where

Δy is the change of y

Δx is the change of x

∵ Lisa collects rainwater in a barrel that weighs 25 pounds

∴ The initial value of the weight is 25 pounds

∴ b = 25

∵ When there are 10 gallons of water in the barrel, the total weight

of the barrel and the water is 108.4 pounds

∴ At x = 10, y = 108.4

∵ When there are 20 gallons of water, the total weight is 191.8 pounds

∴ At x = 20, y = 191.8

→ Find Δx and Δy

∵ Δx = 20 - 10 = 10

∵ Δy = 191.8 - 108.4 = 83.4

→ Substitute them in the rule of the slope above

∴ m = $\frac{83.4}{10}$

∴ m = 8.34

→ Substitute the values of m and b in the form of the equation above

∵ y = 8.34x + 25

∴ The equation that matches this situation is y = 8.34x + 25

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3 years ago

Somebody please help me with this math question and I’ll give you 26 points please if you are going to submit links do not answe

vampirchik [111]

Answer:

$600

Step-by-step explanation:

Simple Interest Rate: A = P(1 + RT)

A $\longmapsto$ Total Value

P $\longmapsto$ Principle

R $\longmapsto$ Rate

T $\longmapsto$ Time

__________________________________________________________

<h2>Step 1: Insert Values </h2><h2> </h2>

Let's plug the info we have into the formula:

A = 4000(1 + 0.05(3))

A = 4000 + 4000(0.15)

A = 4000 + 600

A = 4600

__________________________________________________________

<h2>Step 2: Finding the Interest</h2><h2 />

So the total value she ends up with $4600, but we want to find the extra value, or interest, she has to pay.

To find this we subtract the principle from the new value:

4600 - 4000 = 600

Liz has to pay $600.

-Chetan K

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3 years ago