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Shkiper50 [21]
2 years ago
12

How do I solve this? i missed ONE class

Mathematics
2 answers:
lisov135 [29]2 years ago
6 0

Answer:

a < 42

Step-by-step explanation:

Question : 4a + 9a - 6a < 42

Answer :

4a + 9a - 6a < 42

Combine like terms.

13a - 6a < 42

7a < 42

Divide both sides by 7.

a < 42

Hope this helps you :-)

Let me know if you have any other questions :-)

luda_lava [24]2 years ago
6 0

Answer:

\large\boxed{\boxed{\underline{\underline{\maltese{\pink{\pmb{\sf{\: Solution :- \: a \: < \: 6 }}}}}}}}

Step-by-step explanation:

We need to solve the below given inequality \downarrow

  • 4a + 9a - 6a < 42

For this, we need to combine all the like terms at first. So

  • 4a + 9a - 6a < 42
  • 13a - 6a < 42
  • 7a < 42

We know that, 42 is divisible by 7. So, let's divide both the sides of the inequality by 7.

  • 7a < 42
  • a < 42/7
  • <u>a < 6</u>

_________

Hope it helps!

Check out more helpful links here:

■ brainly.com/question/17448505

■ brainly.com/question/15816805

\mathfrak{Lucazz}

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Bloody nose again check lol

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2 years ago
Read 2 more answers
How did the temperature change if: at first it decreased by 60% and then increased by 80%. PLEASE NEED HELP!
Sergio039 [100]

The temperature decreased by 28%

Step-by-step explanation:

How did the temperature change if :

  • At first it decreased by 60%
  • Then increased by 80%

Assume that the temperature before decreasing is 100%

∵ The temperature before decreasing = 100%

∵ It decreased by 60%

→  Before decreasing  :  decreasing  :    after decreasing

→  100%                         :  60%              :    100% - 60% = 40%

∴ The temperature after decreasing = 40%

Assume that the temperature after decreasing is 100%

∵ The temperature after decreasing = 100%

∵ It increased by 80%

By using the ratio method

→  After decreasing  :  increasing  :    after increasing

→  100%                      :  80%             :   100% + 80% = 180%

→  40%                        :                       :   x%

By using cross multiplication

∴ 100% × x% = 40% × 180%

- Divide both sides by 100%

∴ x% = \frac{(40)(180)}{100}

∴ x% = 72%

∵ At first the temperature = 100%

∵ At last the temperature = 72%

∵ The first the temperature > the last the temperature

∴ The decreasing in temperature = 100% - 72% = 28%

The temperature decreased by 28%

Learn more:

You can learn more about ratio in brainly.com/question/2707032

#LearnwithBrainly

5 0
3 years ago
The dimensions (width and length) of room1 have been read into two variables : width1 and length1 . The dimensions of room2 have
Lorico [155]

Answer:

Total area of the two rooms   =   (width1length1) +   (width2length2)

Step-by-step explanation:

The area of the rectangular shape is given by = Length * breadth

Therefore the area of the two rooms can be calculated using the above formula when the variables lengths and widths are given.

Area 1= Area of the first room = length * breadth=  (width1length1)

Area 2=Area of the second room = length * breadth=  (width2length2)

Total area of the two rooms = Area1 + Area 2

                                         =   (width1length1) +   (width2length2)

5 0
3 years ago
Add the two expressions.<br> 69 + 1 and q + 11<br> Enter your answer in the box.<br> Please help!!
Pavlova-9 [17]

Answer:

l think the answer is 81q

3 0
3 years ago
Solve the system of equations by substitution. Simplify your answer. Write the
pychu [463]

Answer:

x = 5     y = 2

Step-by-step explanation:

3x + 2(3x - 13) = 19

3x + 6x - 26 = 19

9x = 45

x = 5

y = 3(5) - 13

y = 15 - 13

y = 2

4 0
3 years ago
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