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
Fynjy0 [20]
3 years ago
13

Solve for x:- x + 65 = 120 Thanks!

Mathematics
2 answers:
Tema [17]3 years ago
8 0
To solve for x we will use the INVERSE OPERATION of addition which is subtraction. Lets do it:-

x + 65= 120
x = ?
120 - 65 = x
120 - 65 = 55
x = 55

CHECK OUR WORK:-

x + 65 = 120
x = 55
55 + 65 = ?
55 + 65 = 120
We were RIGHT!!!!

So, x = 55.

Hope I helped ya!! xD
Rama09 [41]3 years ago
7 0
X + 65 = 120
    -65      -65

x = 55
You might be interested in
Based on the information from Harper's Index, 37 out of 100 adult Americans who did not attend college believe in extraterrestri
Natalija [7]

Answer: Yes, this indicate the  proportion of adult americans that attended college and believe in extraterrestrials is higher than the proportion that did not attend college.

Step-by-step explanation:

Since we have given that

Hypothesis:

H_0:p_1=p_2\\\\H_a:p_1>p_2

n₁ = 100

x₁ = 37

So, p_1=\dfrac{x_1}{n_1}=\dfrac{37}{100}=0.37

n₂ = 100

x₂ =47

So, p_2=\dfrac{47}{100}=0.47

At 0.01 level of significance, z = 2.33

So, test statistic value would be

z=\dfrac{p_1-p_2}{\sqrt{\dfrac{p_1(1-p_1)}{n_1}+\dfrac{p_2(1-p_2)}{n_2}}}\\\\z=\dfrac{0.37-0.47}{\sqrt{\dfrac{0.37\times 0.63}{100}+\dfrac{0.47\times 0.53}{100}}}\\\\z=-1.44

Since, 2.33>-1.44

Hence, we will reject the null hypothesis.

Therefore, Yes, this indicate the  proportion of adult americans that attended college and believe in extraterrestrials is higher than the proportion that did not attend college

8 0
3 years ago
-3x + 8 = 17 and 1 + 4x = -15
grin007 [14]

Answer:

1) x= -3

2) x=-4

Step-by-step explanation:

The first equation is :

-3x+8=17

solving for x

-3x=17-8 ------------by collecting like terms

-3x=9

Divide both sides by -3

-3x/-3=9/-3

x= -3

In the second equation

1+4x= -15

solving for x

4x=-15-1

4x = -16

x=-16/4

x= -4

3 0
4 years ago
Need 78 pieces of wood 29 cm long. Boards are 6 m long. How many boards are needed?
Wittaler [7]

I believe the answer is 4 because 6m/29= 20.6897 and so then you do 20.6897 x 3= 62.0691. So 3 is too small so do 20.6897x 4= <span>82.7588. 82 >78 so the answer is that you need 4 boards.
</span>

5 0
3 years ago
Answer this question plzzzzzzz
vitfil [10]
It’s going up at the same rate
The answer is A and B
Increasing and linear
7 0
3 years ago
A yogurt shop has a half-price mystery scoop special. The scoop could have vanilla or chocolate yogurt. It will also include eit
dangina [55]

Answer:

the answer would be D

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • A bage contains 5 blue marbles, 3 red marbles, and 2 yellow marbles. You select a marble at radom. What is p(yellow)
    14·1 answer
  • What are the terms in this expression? 350n - 30n + 350 - (50+10n)
    14·1 answer
  • A) If there are 12 eggs per carton how many eggs do we have in 5 cartons ?
    13·2 answers
  • A sample of 1600 computer chips revealed that 43% of the chips fail in the first 1000 hours of their use. The company's promotio
    11·1 answer
  • Translate the figure 2 units left and 4 units down.
    15·2 answers
  • the green value of course from a dealership is $5,000 with a standard deviation of $500 but data has a bell-shaped distribution
    10·1 answer
  • Jane charges a flat fee of $12 when she babysits plus $8 extra each
    10·1 answer
  • -x=9 pls help I’m behind
    12·1 answer
  • What are the domain and range of the function f(x) = 2^x+1?
    6·1 answer
  • What is the domain of f(x)?<br> O{x-4 O x1-3 O {x|1 O {x| 2 &lt; x ≤ 4}
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!