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
d1i1m1o1n [39]
3 years ago
6

Nancy is checking to determine if the expressions x + 4 + x and 6 + 2 x minus 2 are equivalent. When x = 3, she correctly finds

that both expressions have a value of 10. When x = 5, she correctly evaluates the first expression to find that x + 4 + x =14. What is the value of the second expression when x = 5, and are the two expressions equivalent? The value of the second expression is 8, so the expressions are not equivalent. The value of the second expression is 14, so the expressions are equivalent. The value of the second expression is 16, so the expressions are equivalent. The value of the second expression is 18, so the expressions are not equivalent.
Mathematics
2 answers:
Basile [38]3 years ago
8 0

Answer:

I believe is The value of the second expression is 14, so the expressions are equivalent.

Step-by-step explanation:

I took the test and got it right.

anastassius [24]3 years ago
3 0

Answer:

The value of the 2nd expression is 14, so the expressions are equivalent.

Step-by-step explanation:

6 + 2x - 2

6 + 2(5) - 2

6 + (10) - 2

16 - 2

14

You might be interested in
Solve: 3 + √x+2 = 11<br><br> 62<br> 64<br> ()
klemol [59]

Answer: its 62

Step-by-step explanation:

Isolate the radical, then raise each side of the equation to the power of its index.

3 0
3 years ago
Round and estimate 0.9% of 74
skelet666 [1.2K]
The answer is 6.7 bc .09 times 74 equals 6.66 so you round the 6 to a 7.
7 0
3 years ago
PLEASE HELP/ANSWER! From 1980 to 1990, Lior’s weight increased by 25%. If his weight was k kilograms in 1990, what was it in 198
Elena-2011 [213]

The weight in 1980 is \frac{4k}{5} kilograms

<em><u>Solution:</u></em>

From 1980 to 1990, Lior’s weight increased by 25%

His weight is "k" kilograms in 1990

<em><u>To find: weight in 1980</u></em>

This is a percentage increase problem

Let "x" be the weight in kilograms in 1980

<em><u>The percentage increase is given by formula:</u></em>

\text{Percentage increase } = \frac{\text{Final value - initial value}}{\text{initial value}} \times 100

Here,

Initial value in 1980 = x

Final value in 1990 = k

Percentage increase = 25 %

<em><u>Substituting the values in formula,</u></em>

25 = \frac{k-x}{x} \times 100\\\\25x = 100(k-x)\\\\x = 4(k-x)\\\\x = 4k - 4x\\\\5x = 4k\\\\x = \frac{4k}{5}

Thus the weight in kilograms in 1980 is \frac{4k}{5}

7 0
3 years ago
Mike paid $18.00 before taxes for 5 photo albums. His sister wants to buy two of the same type of album. What amount should she
Natalija [7]
She should expect to pay $7.20 
4 0
3 years ago
Read 2 more answers
In a large population, 71 % of the people have been vaccinated. If 4 people are randomly selected, what is the probability that
Oksi-84 [34.3K]

Answer:

The answer is "0.9929"

Step-by-step explanation:

\text{The distribution in binomials is n = 4 and p = 0.71.}\\\\\text{Vaccinated Pr(AT LEAST ONE) = 1-pr( no people vaccinated ).}

= 1 - Bin (n=4, k =0, p=0.71) \\\\= 1 - C(4,0) \times 0.71^0 \times (1-0.71)^{4-0} \\\\= 1 - (1 \times 0.29^4)

= 1 - (1 \times 0.00707281)\\\\=0.9929

5 0
3 years ago
Other questions:
  • Anyone good at statistics? Please help me
    11·1 answer
  • Quadrilateral ABCD is dilated to form quadrilateral A′B′C′D′. Which statement is true?
    7·1 answer
  • Simplify the expression 5(4g−7)+8g+3
    15·1 answer
  • Madame curie made some radium in her lab. she used 2/5 kg of the radium in an experiment and had 1 1/4 kg left. how much radium
    6·2 answers
  • What is the value of 15/124×230/30÷230/124
    10·1 answer
  • Help me solve for m&lt;4 and m&lt;5 and x
    13·1 answer
  • Select all COEFFICIENTS in the following expression:<br> 17x +3 - 5y + 19 + 10:
    9·1 answer
  • While studying medical treatments, scientists noticed a relationship between two of the treatments when applied together. As Tre
    13·2 answers
  • The table shows the heights that four people parachute from an airplane. What is the range of the heights? Write your answer as
    10·1 answer
  • 3x-1/5=x+1/3 pls help me
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!