Robert earned 10$ which is 4 less than twice what Eric earned ,how much did Eric earn?

Mathematics

2 answers:

elena55 [62]3 years ago

6 0

Answer:

3 i think

Step-by-step explanation:

10-4

6 divide by 2

horrorfan [7]3 years ago

5 0

Dont really understand but i think 6 idk im not really a good mathematical person but who cares im on this app for a reason.

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I need help on question #1 asap

bekas [8.4K]

The answer is three. divide 48 by any number under 6 if there a decimal they don't count if there answer is over 20 it doesn't count

3 0

3 years ago

Read 2 more answers

-2 =5 - 7x how do you do this

Paul [167]

First you want to get x by it’s self so you need to get ride of your 5 so you subtract 5 on both sides leaving you with -2 and -5 on the same side then you combine those two number to get -7 now to get your x all you have to do is divide both sides by -7 since your x is -7 once once your x is now by its self but on the other side -7 divided by -7 equals 1 bc 7 goes into 7 once and it turns positive because anytime you divide an negative number by a negative number it turns into a positive number so your answer over all is 1=x

6 0

3 years ago

What is the volume, in cubic centimeters, of a cylinder with a height of 5 centimeters and a base radius of 10 centimeters, to t

stealth61 [152]

Answer:

The volume of the cylinder is approximately 1570.8 cm³.

General Formulas and Concepts:
Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Geometry

Volume Formula [Cylinder]:
$\displaystyle V = \pi r^2 h$

r is radius
h is height

Step-by-step explanation:

Step 1: Define

Identify given variables.

h = 5 cm

r = 10 cm

Step 2: Find Volume

[Volume Formula - Cylinder] Substitute in variables:
$\displaystyle V = \pi (10 \ \text{cm})^2 (5 \ \text{cm})$
[Order of Operations] Evaluate:
$\displaystyle V = 500 \pi \ \text{cm}^3$
Approximate:
$\displaystyle V \approx \boxed{ 1570.8 \ \text{cm}^3 }$