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
mote1985 [20]
3 years ago
6

If x-15=30,what is the value of 2(x 5)

Mathematics
1 answer:
Digiron [165]3 years ago
5 0
X - 15 = 30
=> x = 30 + 15 = 45

2(x + 5) = 2(45 + 5) = 2(50) = 100
You might be interested in
Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring:
andre [41]
The part of the quadratic formula that dictates whether the function is factorable or not is B. b^2 - 4ac. This determines the number of real, imaginary, negative and positive roots. 
In the equation <span>2x^2 + 7x + 3, 
we use the quadratic formula 
x = -b +- sqrt (b2 -4ac) /2a = -7 +- </span><span>sqrt (49 -24) /4
the answers are x1 =-0.5 and x2 = -3.</span>
4 0
2 years ago
Read 2 more answers
Lincoln invested $440 in an account paying an interest rate of 5\tfrac{7}{8}5 8 7 ​ % compounded continuously. Robert invested $
Sidana [21]

Answer: $34

Step-by-step explanation:

5 0
3 years ago
PLEASE HELP! i have by the end of the day to turn this in. PLEASE DONT GUESS
SVEN [57.7K]

Answer:

122

Step-by-step explanation:

x = 180-(180-50-72) = 180-(130 - 72) = 180 - 130 + 72 = 50 + 72 = 122

6 0
3 years ago
Read 2 more answers
Jan rode to her friend's house with a constant speed of 14 m/hr. How long will she take to
sammy [17]

Answer:

1.07 hours

Step-by-step explanation:

14 miles = 1 hour

15 miles = x hours

Equal these two together

14 mi/1hr = 15 mi/xhr

Cross multiply

14 mi × x hr = 1 hr × 15 mi

I will stop using the units for now so it won't be as confusing

14x = 15

Divide both sides by 14 to isolate the variable

14x ÷ 14 = 15 ÷ 14

x = 1.07... hours

4 0
3 years ago
Find the product of (5t-3) and (3t +7) when t = 6
emmasim [6.3K]

Answer:

675

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

Step-by-step explanation:

<u>Step 1: Define</u>

(5t - 3) · (3t + 7)

t = 6

<u>Step 2: Evaluate</u>

  1. Substitute in <em>t</em>:                    (5(6) - 3) · (3(6) + 7)
  2. (Parenthesis) Multiply:       (30 - 3) · (18 + 7)
  3. (Parenthesis) Subtract:      27 · (18 + 7)
  4. (Parenthesis) Add:             27 · 25
  5. Multiply:                              675
8 0
3 years ago
Read 2 more answers
Other questions:
  • Nate's classroom has three tables of different lengths. One has a length of 4 1/2 feet, another has a length of 4 feet, and a th
    15·2 answers
  • 6f²+4w²+9f²+7w<br>Fully Simplify ​
    10·2 answers
  • Write one pair of brackets in this calculation so that the answer is correct. 5 + 2 × 7 – 4 = 11
    12·1 answer
  • The hover dam contains 3 1/2 millon cubic yards of concrete.The grand coulee dam contains 2 1/2 times as much. How much concrete
    7·1 answer
  • For his mobile phone service, John pays a monthly fee of $40 plus $15 for each 1 GB of data (rounded up) over his 8 GB of data t
    6·1 answer
  • The students in Roberto's school are painting a mural that will be 15 feet by 8 feet. First they make a scale drawing of the mur
    8·1 answer
  • Please help me with this question
    11·1 answer
  • Solve for either the missing angle or missing arc measure.<br> G<br> ?<br> 470<br> F<br> E
    7·1 answer
  • 4x-5=3 what is the answer for this question
    11·2 answers
  • Factor the expression using the GCF.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!