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
MAXImum [283]
3 years ago
5

A, B, C , Or D (Select all that apply)

Mathematics
1 answer:
bulgar [2K]3 years ago
6 0
A) (1,5) shows that one hat cost $5.00
C) (3,15) shows that three hats cost $15.00
You might be interested in
The area of a triangle that is similar to the one below is the area of this triangle. What is the length of the base of the simi
svp [43]

The answer is 7 feet

7 0
3 years ago
Pweaseee help!!!!!!!!!!!!!!!​
liraira [26]
To simplify this expression would be 4x-3
8 0
3 years ago
The slopes of perpendicular lines are _______ reciprocals.
MariettaO [177]
The negative reciprical


7 0
3 years ago
Read 2 more answers
Just number 3 is fine please but if you could also 4​
PIT_PIT [208]

Answer:

3. r = -8

4. x = -5

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

Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

2(-5r + 2) = 84

<u>Step 2: Solve for </u><em><u>r</u></em>

  1. Divide 2 on both sides:                    -5r + 2 = 42
  2. Subtract 2 on both sides:                 -5r = 40
  3. Divide -5 on both sides:                    r = -8

<u>Step 3: Check</u>

<em>Plug in r into the original equation to verify it's a solution.</em>

  1. Substitute in <em>r</em>:                   2(-5(-8) + 2) = 84
  2. Multiply:                             2(40 + 2) = 84
  3. Add:                                   2(42) = 84
  4. Multiply:                             84 = 84

Here we see that 84 does indeed equal 84.

∴ r = -8 is a solution of the equation.

<u>Step 4: Define equation</u>

264 = -8(-8 + 5x)

<u>Step 5: Solve for </u><em><u>x</u></em>

  1. Divide both sides by -8:                    -33 = -8 + 5x
  2. Add 8 to both sides:                          -25 = 5x
  3. Divide 5 on both sides:                      -5 = x
  4. Rewrite:                                               x = -5

<u>Step 6: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

  1. Substitute in<em> x</em>:                    264 = -8(-8 + 5(-5))
  2. Multiply:                               264 = -8(-8 - 25)
  3. Subtract:                              264 = -8(-33)
  4. Multiply:                               264 = 264

Here we see that 264 does indeed equal 264.

∴ x = -5 is a solution of the equation.

8 0
2 years ago
On the playground the teacher observed bicycles and tricycles. she counted 72 wheels and 28 total cycles. How many of them were
Andreyy89

Answer:

  16 tricycles

  12 bicycles

Step-by-step explanation:

If all were bicycles, there would be 28·2 = 56 wheels. Each additional wheel indicates the presence of a tricycle instead of a bicycle.

There are 72 -56 = 16 tricycles. The remaining 28-16 = 12 are bicycles.

3 0
3 years ago
Other questions:
  • Write 6.04 x 10^-3 as an ordinary number
    10·1 answer
  • In complete sentence explain the process of mitosis<br><br> in your own words plz
    9·2 answers
  • What the simplified of 2/3 dived by 2/9
    8·1 answer
  • Need help with question 3. ASAP PLS. Much appreciated :)
    5·1 answer
  • Five times sum of a number, x,and nine is ten. What is the number?
    9·2 answers
  • Question 4 help me and i will give brainlist
    5·2 answers
  • There are 205 coins in a jar all of which are either nickles or quarters . The vaule of the coin in the jar is $31.85. if both o
    7·1 answer
  • Plz answer asap it’s due
    6·2 answers
  • Which one is it I need the answer asp.
    5·2 answers
  • What are some examples from science and engineering where a quadratic is used but is not a function?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!