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
Nina [5.8K]
2 years ago
11

What’s the answer to 250 = 4(1 - 7x)

Mathematics
1 answer:
Dima020 [189]2 years ago
5 0

Answer:

x = -123/14

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

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

Step-by-step explanation:

<u>Step 1: Define</u>

250 = 4(1 - 7x)

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

  1. Divide both sides by 4:                    125/2 = 1 - 7x
  2. Subtract 1 on both sides:                  123/2 = -7x
  3. Divide -7 on both sides:                   -123/14 = x
  4. Rewrite:                                             x = -123/14

<u>Step 3: Check</u>

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

  1. Substitute in <em>x</em>:                    250 = 4(1 - 7(-123/14))
  2. (Parenthesis) Multiply:        250 = 4(1 + 123/2)
  3. (Parenthesis) Add:              250 = 4(125/2)
  4. Multiply:                               250 = 250

Here we see that 250 does indeed equal 250.

∴ x = -123/14 is the solution to the equation.

You might be interested in
Your friend claims that it is possible to draw a right triangle where the cosine of either angle (theta) is exactly the same val
avanturin [10]

Answer:

B. No

Cos \ \theta\neq Cos (90-\theta)\textdegree

Step-by-step explanation:

-A right angle triangle has two complimentary acute angles and one right angle.

-\theta is usually one of the acute angles and is equivalent to 90º minus it's complimentary acute angle.

-Complimentary angles add up to 90º.

#For complimentary angles:

Sin \ \theta=Cos \ (90-\theta)\textdegree\\\\Cos \ \theta=Sin(90-\theta)\textdegree\\\\\therefore Cos \ \theta\neq Cos (90-\theta)\textdegree

The two acute angles cannot have the same Cosine value.

Hence, she's not correct.

5 0
3 years ago
Please!!!!!!!!! help!!!! me!!!!!!!!!!
LuckyWell [14K]
Hey! the answer is 8 dimes and 4 nickels

8 dimes = 8×10
and 4 nickels = 5×4 = 20
which 20+80 = 100
and I would put (D) break into parts
hope it helps!
5 0
3 years ago
Read 2 more answers
Whatssssssssss uppppppppppppppp
Alex787 [66]

Answer:

как работать с ю так 87

Step-by-step explanation:

156

7 0
2 years ago
Read 2 more answers
Prime between number of 1234 to 1352​
qwelly [4]

prime between number of 1234 to 1352​ are 1237, 1249,  1259, 1277, 1279, 1283, 1289, 1291, 1297, 1301, 1303, 1307, 1319, 1321, 1327

8 0
2 years ago
In the year 2008, a company made $8.6 million in profit. For each consecutive year after that, their profit increased by 10%. Ho
goldenfox [79]

Answer:

12,040,000

Step-by-step explanation:

You would first do 8.6 million times 0.10 and then you would multiply that times 4 bc of 4 years that passed and finally add to 8.6 million!

5 0
3 years ago
Other questions:
  • How do you solve for this: f(x)=60-0.18x
    7·1 answer
  • What is the least possible sum of the digits displaying the time on a 12-hour digital clock?
    12·1 answer
  • The ratio of boys to girls in Mr. Jordan's soccer team is the same as the ratio of boys to girls on Ms. Grolin's soccer team. Th
    7·2 answers
  • ASAP!! PLEASE I NEED HELP!!
    6·1 answer
  • What are the slope and y-intercept of the following<br> equation?<br> 2x - 4y = 16
    14·1 answer
  • Alice plants carrots in a rectangular garden bed. The garden bed has a width of 1.5 meters
    14·1 answer
  • A polling company surveyed 5000 registered voters about which candidate they support in the upcoming election. The results of th
    7·1 answer
  • A tree that is next to a telephone pole is 15 feet tall and casts a shadow 4 feet long.
    9·2 answers
  • NO LINKS OR ELSE YOU'LL BE REPORTED! Only answer if you're very good at Math.No guessing please.
    8·2 answers
  • 3. How many solutions does the equation
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!