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trapecia [35]
1 year ago
12

14a - (2a +9)=2/3 (12a-18)​

Mathematics
2 answers:
Dmitrij [34]1 year ago
3 0

Answer: a=-0.75

Step-by-step explanation:

14a - (2a +9)=2/3 (12a-18)​

14a - 2a -9=2/3 * 6(2a-3)​

12a-9=2*6/3 (2a-3)​

12a-9=2*2(2a-3)​

12a-9=4(2a-3)​

12a-9=8a-12

4a-9=-12

4a=-3

a=-3/4

a=-0.75

irina1246 [14]1 year ago
3 0
Check the image below for working
Hope this helped :)

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But whats the answer
Gekata [30.6K]

Question: Mia and Kai want to rent a canoe at the boathouse on the river. It costs $6.95 to rent a canoe for 1 hour. The price per hour stays the same for up to 3 hours of rental. After 3 hours, the cost decreases to $4.50 per hour. How much would it cost Mia and Kai to rent a canoe for 4 hours?

Answer:

$23.30

Step-by-step explanation:

To do this I did 6.45(3) + 6.45-4.50

20. 85 + 2.45

23.30

Hope this helps ya!

5 0
2 years ago
Read 2 more answers
What is the radius and diameter of 7
Aleks04 [339]
<h3>Answer:</h3>

The radius would be <em>3.5 units</em>.

Step-by-step explanation:

This is because a radius is always half of a diameter.

By using that,

7 ÷ 2 = 3.5 units

Since there was no measurement listed in the question, the answer would be in "units."

8 0
3 years ago
Please do this question
crimeas [40]
It would be 16 more 6th graders that are not in either band or orchestra.
  15 6th Graders in band
  9 6th Graders in both classes
+18 6th Graders in orchestra
-----
42 6th Graders in either class

  100 6th Graders in total
 -42 6th Graders in either class
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58 6th Graders in neither class
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You're welcome :)

7 0
3 years ago
I'm having a hard time on this problem. Plz help. Will mark brainliest.
Grace [21]

Answer:

<h2>y = 31</h2>

Step-by-step explanation:

We know: opposite angles in a parallelogram have the same measure.

Therefore we have the equation:

x+y=87+y            <em>subtract y from both sides</em>

x=87

We know: the sum of the angle measures in the triangle is 180°.

Therefore we have the equation:

42+(x+y)+20=180          <em>subtitute x = 87</em>

42+87+y+20=180

149+y=180              <em>subtract 149 from both sides</em>

y=31

7 0
3 years ago
To multiply a decimal number by 1,000, move the decimal point _____. three places to the left three places to the right four pla
melamori03 [73]
The number 1000 has three zeros which will move the decimal three times. But what in direction?

Well, when we multiply a number by 10, we move the decimal one place to the left.

So, the answer is three places to the left.
6 0
3 years ago
Read 2 more answers
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