1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kotegsom [21]
4 years ago
12

Plz help me wit this

Mathematics
2 answers:
True [87]4 years ago
8 0
Answer is 10.0 and adding in . Are easy :D
Black_prince [1.1K]4 years ago
4 0
0.3 x 7= 0.21 is the correct answer
You might be interested in
Find all the whole number solutions to the equation a+b+c+d=15
Allushta [10]

Answer:

a=−b−c−d+15

Step-by-step explanation:

Step 1: Add -b to both sides.

a+b+c+d+−b=15+−b

a+c+d=−b+15

Step 2: Add -c to both sides.

a+c+d+−c=−b+15+−c

a+d=−b−c+15Step 3: Add -d to both sides.

a+d+−d=−b−c+15+−d

a=−b−c−d+15

6 0
3 years ago
In a survey, 50 people were interviewed. 35 of them owned cars.
natulia [17]

Answer:

1. 35%

2. 15 %

3 0
3 years ago
Read 2 more answers
Find the volume of each cylinder. (use nr = 3.14)
alexandr1967 [171]

Answer:

V = 8591.04 ft³

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Geometry</u>

Volume of a Cylinder: V = πr²h

  • V is volume
  • r is radius
  • h is height

Step-by-step explanation:

<u>Step 1: Identify</u>

Radius <em>r</em> = 12 ft

Height <em>h</em> = 19 ft

<u>Step 2: Find Volume</u>

  1. Substitute in variables [Volume of Cylinder]:                                               V = π(12 ft)²(19 ft)
  2. Evaluate exponents:                                                                                      V = π(144 ft²)(19 ft)
  3. Multiply:                                                                                                           V = 2736π ft³
  4. Substitute π:                                                                                                   V = 2736(3.14) ft³
  5. Multiply:                                                                                                           V = 8591.04 ft³
3 0
3 years ago
A 4​-ft vertical post casts a 20​-in shadow at the same time a nearby cell phone tower casts a 120​-ft shadow. How tall is the c
Sedaia [141]

change 20 in  to ft

20/12 = 1 2/3 ft


4 ft                               x ft

-------                     =    ---------------

5 /3 ft  shadow           120 ft


using cross products

4 * 120 = 5/3 x

480 = 5/3 x

multiply each side by 3/5

480 * 3/5 = x

288 ft

7 0
4 years ago
y = 3x + 3 y = x − 1 Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution
Leona [35]
Y = 3x + 3
y = x - 1

As you can see, both equations are set to equal y. This means the right sides of each equation are equal, since y is isolated in both equations. So to solve this particular system of equations for x, set the right sides of both equations equal to each other. After you've done that, you can proceed to solve the equation algebraically for the variable, x.

3x + 3 = x - 1
2x + 3 = -1
2x = -4
x = -2

Negative two is the x-value. To find the y-value, substitute -2 for x into either equation and solve algebraically for y.

y = x - 1
y = -2 - 1
y = -3

The final step is to check all work by plugging both x- and y-values back into both equations.

y = 3x + 3
-3 = 3(-2) + 3
-3 = -6 + 3
-3 = -3  --  This is true

y = x - 1
-3 = -2 - 1
-3 = -3  --  This is true.

Answer:
(-2, -3)
5 0
4 years ago
Other questions:
  • I need help!!!
    15·2 answers
  • Which equation can be used to find the measure of angle BAC? A.) inverse tan (5/12) B.) inverse cos (5/13) C.) inverse sin (12/5
    14·1 answer
  • PLZ ANSWER QUESTION BELOW .0.
    13·2 answers
  • Which statement describes the rate of change of the following function?
    8·1 answer
  • the temperature of the pool water started at 82 degrees, and it cooling down at 4.0 degrees each hour . If the water temperature
    15·2 answers
  • Do y’all know what this one is I’m kinda struggling
    9·2 answers
  • a construction company charges $15 per hour for debris removal plus a one-time fee for the use of a trash dumpster the total fee
    14·1 answer
  • Plz help this is due in 30 minutes
    6·1 answer
  • Two forces of 82 newtons and 58 newtons act simultaneously on an object. The angle
    15·1 answer
  • Find the mean number of merits received by the girls and boys. <br> Who did better on average?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!