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
Serggg [28]
3 years ago
8

What's the answer?x + 7 + 2 × x + 3 = 40​

Mathematics
1 answer:
Phantasy [73]3 years ago
5 0

Answer:

x=10

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

You might be interested in
Three hikers are dividing the costs of a hiking trip evenly. They bought two permits that cost $15 each, three tram tickets that
cestrela7 [59]

Each hiker owes $41 or 4100 cents for the hiking trip.

<u><em>Explanation</em></u>

Cost of each permit is $15. So, the cost of <u>two permits</u> will be: (\$15*2)= \$30

Cost of each tram ticket is $19. So, the cost of <u>three tickets</u> will be: (\$19*3)=\$ 57

Cost of <u>one can</u> of bear spray is $36.

So, the total cost of the hiking trip =\$30+\$57+\$36=\$123

As the <u>three hikers</u> are dividing the total costs of the trip <u>evenly</u>, so each hiker owes =\frac{\$123}{3}=\$41 or 4100 cents.


3 0
3 years ago
Can someone explain to me why you flip the reciprial
puteri [66]

Answer:

By flipping the second fraction (finding its reciprocal) we change the equation mathematically. In order to maintain the equation mathematically, we must turn the division question into a multiplication question.

Step-by-step explanation:

4 0
3 years ago
Work out 3/5 of 900
Mars2501 [29]

Answer:

540

Step-by-step explanation:

1. We assume, that the number 900 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 900 is 100%, so we can write it down as 900=100%.

4. We know, that x is 3.5% of the output value, so we can write it down as x=3.5%.

5. Now we have two simple equations:

1) 900=100%

2) x=3.5%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

900/x=100%/3.5%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 3.5% of 900

900/x=100/3.5

(900/x)*x=(100/3.5)*x       - we multiply both sides of the equation by x

900=28.571428571429*x       - we divide both sides of the equation by (28.571428571429) to get x

900/28.571428571429=x

31.5=x

x=31.5

now we have:

3.5% of 900=31.5

3 0
3 years ago
А<br> E<br> с<br> D<br> В<br> If mZACD = 100°, then mZECB = [?]°
11111nata11111 [884]

Answer:

100

Step-by-step explanation:

they are vertical angles therefore, they have the same measure.

4 0
3 years ago
What's the exact value for this trigonometric function sin 60 degrees
Elodia [21]
\sin60^\circ=\dfrac{\sqrt{3}}{2}
3 0
3 years ago
Other questions:
  • Witch of the following are the factors of 4b^2 - 16?
    10·1 answer
  • 350 people went to movies on saturday. fewer people went to the movie on sunday. about 600 people went to the movies in all. how
    12·2 answers
  • What is the midpoint of AB?<br><br>​
    6·2 answers
  • Jovie is maintaining a camp fire. She has kept the fire steadily burning for 10 hours with 15 logs. She wants to know how many h
    6·2 answers
  • Find the area of a trapezium is 4cm 4cm, 7cm
    10·1 answer
  • Exponent rules . Simplify each expression . HELPPP pls on these 2 problems
    9·1 answer
  • ½ (8x+4) = ¼ (8+16x)
    10·1 answer
  • Which expression is equivalent to 30x - 12y
    5·2 answers
  • The angle measurements in the diagram are represented by the following expressions.
    5·2 answers
  • I really need help for this test I’m going to fail
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!