All categories

2 years ago

Mitchell has $18 to spend. What is the greatest number of any one item he can buy?

Mathematics

2 answers:

evablogger [386]2 years ago

6 0

He can buy 1800 gum balls that are 1 penny a piece

NISA [10]2 years ago

3 0

He can buy 6 water bottles that are $3 a piece.

You might be interested in

The point (2, -3), is the top of a triangle. Which point would it map to if the triangle was translated up 7 units and reflected

Elza [17]

Answer: (-2,4)

Step-by-step explanation:

When you go up any number of units, you add it to the y-coordinate. So -3 + 7 = 4. That would make it, (2,4). The next step would be reflecting it across the y-axis. And whenever you reflect across the y-axis, the x-coordinate always changes.

3 0

2 years ago

I need help with this one

Gwar [14]

Factors always multiply each other.

The only option that multiplies something is (y^3 + 3)
So the answer is B.

8 0

3 years ago

It took 2 hours to hike 4 2/3 miles what is the average speed in miles per hour

snow_lady [41]

2 1/3 an hour.

4 2/3 DIVIDED BY 2

=2 1/3

4 0

2 years ago

Read 2 more answers

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

If 5 x 6 = 20+y. what is the value of y? Select one: 10, 6 ,5 ,30

AlladinOne [14]

Answer:\

y=10

Step-by-step explanation:

5 times 6 to 30

30=20+y

Subtract 20 from both sides.

30-20=y

Simplify 30-2o to 10.

10=y

y=10

4 0

2 years ago