All categories

2 years ago

PLEASE HELP I AM BAD A MATH

Mathematics

1 answer:

pav-90 [236]2 years ago

7 0

Answer:

Well what can i help you with?

Step-by-step explanation:

You might be interested in

Please help not sure on this

ahrayia [7]

If I am correct, it would be dropped at -3, side adding to negative numbers make them increase to positive numbers.

4 0

3 years ago

Onya selected a pair of shoes for the regular price of $80. How much money will she save by using the 20% off coupon? Justify yo

professor190 [17]

Answer:

a. $Savings = \$16$

b. $Price = \$96$

Step-by-step explanation:

Solving (a):

$Price = \$80$

$Coupon = 20\%$

Required

Determine her savings.

$Savings = Coupon * Price$

$Savings = 20\% * \$80$

$Savings = \$16$

Solving (a):

$Price = \$120$

$Coupon = 20\%$

Required

Determine the price before tax

First, we need to determine her savings

$Savings = Coupon * Price$

$Savings = 20\% * \$120$

$Savings = \$24$

The price before tax is calculated as follows:

$Price = \$120 - \$24$

$Price = \$96$

4 0

3 years ago

Solve the equation for the red variable.

Harlamova29_29 [7]

Answer:

Step-by-step explanation:

B = 3V/h

Multiply by h on both sides

Bh = 3V

V = Bh/3

7 0

2 years ago

If a snowball melts so that its surface area decreases at a rate of 9 cm2/min, find the rate (in cm/min) at which the diameter d

zhuklara [117]

Answer:

The diameter decreases at a rate of 0.143cm/min when it is of 10 cm.

Step-by-step explanation:

Surface area of an snowball:

An snowball has spherical format. The surface area of an sphere is given by:

$S = d^2\pi$

In which d is the diameter of the sphere.

In this question:

We need to differentiate S implicitly in function of time. So

$\frac{dS}{dt} = 2d\pi\frac{dd}{dt}$

Surface area decreases at a rate of 9 cm2/min

This means that $\frac{dS}{dt} = -9$

At which the diameter decreases when the diameter is 10 cm?

This is $\frac{dd}{dt}$ when $d = 10$ . So

$\frac{dS}{dt} = 2d\pi\frac{dd}{dt}$

$-9 = 2(10)\pi\frac{dd}{dt}$

$\frac{dd}{dt} = -\frac{9}{20\pi}$

$\frac{dd}{dt} = -0.143$

Area in cm², so diameter in cm.

The diameter decreases at a rate of 0.143cm/min when it is of 10 cm.

8 0

2 years ago

Every Pint is 2 cups.Write an equation to express the total number of cups (Z) in (Y) pints.

IceJOKER [234]

Pints = y
Cups = z

2z = y

7 0

2 years ago