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3 years ago

7

A bag contains yellow marbles and red marbles, 19 in total. The number of yellow marbles is 5 less than 3 times the number of re

d marbles. How many yellow marbles are there?

1 answer:

Bad White [126]3 years ago

3 0

Answer of this question =8

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You can earn 5 coins

frozen [14]

Answer:

no

Step-by-step explanation:

9y-5-8y+8= y+3

9y-8y=y

-5+8=3

7 0

2 years ago

The radius of a sphere is increasing at a rate of 2 mm/s. How fast is the volume increasing when the diameter is 100 mm?

Advocard [28]

Answer:

Volume increasing rate = $62831.85 mm^3/s$

Explanation:

We rate of change of radius of sphere, $\frac{dr}{dt} =2mm/s$

Diameter of sphere = 100 mm

Radius of sphere = 50 mm

Volume of sphere, V = $\frac{4}{3} \pi r^3$

Rate of change of volume = $\frac{dV}{dt}$

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

Substituting known values

$\frac{dV}{dt}= \frac{4}{3}* \pi*3*50^2*2=62831.85 mm^3/s$

Volume increasing rate = $62831.85 mm^3/s$

8 0

3 years ago

3/5 - 1/2 this is all I need right now

Vlada [557]

The correct answer is

$\frac{1}{10}$

3 0

2 years ago

Read 2 more answers

Read the problem in the box below. Make a list to help you solve the problem,

romanna [79]

<h3>Answer: Choice A) 9 combinations</h3>

Explanation:

Imagine you had a table with 3 rows and 3 columns. The rows represent the possible main dishes (Chicken, Fish, Beef) and the rows represent the side dishes (Rice, Potatoes, Vegetables).

The table has 3*3 = 9 cells inside it. Each inner cell represents a different combo the customer can order.

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2 years ago

The roots of a quadratic function are -2 and -6

PSYCHO15rus [73]

Step-by-step explanation:

The factors are x + 2 and x + 6.

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2 years ago