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3 years ago

Please help I'm new at these and don't really understand 8 grade and up answers only

Mathematics

1 answer:

Butoxors [25]3 years ago

5 0

The solution is the point where the two lines intersect. In this case it is (-6,-4). So the answer would be C.

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Someone help and make sure the answer is right please and thank you!!!! :)

timama [110]

Answer:

A, 6

Step-by-step explanation:

$50=8x+2$

<em>subtract</em> $2$ from both sides

$48=8x$

<em>divide</em> both sides by $8$

$x = 6$

<em>plz mark me brainliest</em> ;)

3 0

3 years ago

Suppose the radius of the sphere is increasing at a constant rate of 0.3 centimeters per second. At the moment when the radius i

elixir [45]

<h2>At the moment when the radius is 24 centimeters, the volume is increasing at a rate of 2171.47 cm³/min.</h2>

Step-by-step explanation:

We have equation for volume of a sphere

$V=\frac{4}{3}\pi r^3$

where r is the radius

Differentiating with respect to time,

$\frac{dV}{dt}=\frac{d}{dt}\left (\frac{4}{3}\pi r^3 \right )\\\\\frac{dV}{dt}=\frac{4}{3}\pi \times 3r^2\times \frac{dr}{dt}\\\\\frac{dV}{dt}=4\pi r^2\times \frac{dr}{dt}$

Given that

Radius, r = 24 cm

$\frac{dr}{dt}=0.3cm/s$

Substituting

$\frac{dV}{dt}=4\pi r^2\times \frac{dr}{dt}\\\\\frac{dV}{dt}=4\pi \times 24^2\times 0.3\\\\\frac{dV}{dt}=2171.47cm^3/min$

At the moment when the radius is 24 centimeters, the volume is increasing at a rate of 2171.47 cm³/min.

4 0

3 years ago

William has 15 3/5 quarts of paint. He equally divided the paint into 3 gallon-sized

Vikki [24]

Answer:

He has left 1.3 gallons of paint

Step-by-step explanation:

* Lets explain how to solve the problem

- William has 15 3/5 quarts of paint

- He divided the amount of paint equally into 3 gallon-sized containers

- He used 2 containers

- We need to find how many gallons of paint is left

* Lets use the information above to solve the problem

∵ William has 15 3/5 quarts of paint

∵ 15 3/5 = 15.6 quarts as a decimal

∵ 4 quarts = 1 gallon

∴ 15.6 quarts = 15.6 ÷ 4 = 3.9 gallons

∵ He divided the paint equally into 3 gallon-sized containers

∴ Each container has = 3.9 ÷ 3 = 1.3 gallons

∴ Each container has 1.3 gallons of paint

∵ He used 2 of them

∴ He used ⇒ 2 × 1.3 = 2.6 gallons

∴ The third container is left

∵ The container has 1.3 gallons

∴ He has left 1.3 gallons of paint

4 0

3 years ago

This recipe makes 20 cupcakes. Deepak only wants to make 8 cupcakes. How much of each ingredient does he need? Recipe: Makes 20

Vlad [161]

Answer:

20÷8=2,5 12÷2,5=4,8 8÷2,5=3,2 10÷2,5=4 5÷2,5=2 therefore 4,8+3,2+4+2=14

3 0

3 years ago

Solve the equation 5.2g + 8 = 1.29 + 24.

Juliette [100K]

Answer:

=3.325

hope this helps :) plz brainliest

Step-by-step explanation:

5 0

3 years ago