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OLga [1]
2 years ago
15

Please help me with 12 and 13!

Mathematics
2 answers:
erastova [34]2 years ago
3 0
12) (divide by 3)
x = 21, y = 7
x = 27, y = 9

13) (multiply by 8)
a = 6, b = 48
a = 8, b = 64
VLD [36.1K]2 years ago
3 0
12. 7 and 9. Here's why- 3x3=9, 3x5=15, 3x6=18, 3x7=21, 3x9=27. Everything is divisible by 3. 

13. I'm not sure about 13 but i hope I could help with 12. Hopefully someone can comment on this and figure out 13 for you.

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What is the force of a baseball that has a mass of 142 kg and has an acceleration of 30 m/s2?
salantis [7]

Answer:

The answer is

<h2>4260 N</h2>

Step-by-step explanation:

The force acting on an object when given the mass and acceleration can be found by using the formula

<h3>Force = mass × acceleration</h3>

From the question

mass = 142 kg

acceleration = 30 m/s²

So we have

Force = 142 × 30

We have the final answer as

<h3>4260 N</h3>

Hope this helps you

6 0
3 years ago
− 4n = -1 3− 4n - 18
Lady_Fox [76]

Answer:

0=-31

Step-by-step explanation:

7 0
3 years ago
There are 81 red, blue and yellow
wel

Step-by-step explanation:

Here Given

Total counters = 81

red counters are 9 more than the yellow ones.

And Yellow counter = blue counter

So let the Yellow counter be x and as blue counter and yellow counter are same then blue counter will be also x

And by the question

Red counter = 9 + x

Now

9 + x + x + x = 81

9 + 3x = 81

3x = 81 - 9

3x = 72

x = 72 / 3

Therefore x = 24

Now

Red counters = 9 + 24 = 33

Blue counters = 24

Yellow counters = 24

Hope it helped :)

3 0
2 years ago
Read 2 more answers
*Hard*<br> Look at attachment or picture
ioda

Answer:

x = 10.5

Step-by-step explanation:

Work in the screenshots

I used a online calculator

symbolab. com

6 0
2 years ago
Parallelogram A B C D is shown. The length of A B is (9 x minus 14) inches and the length of D C is (3 x + 4) inches. In paralle
Ne4ueva [31]

Answer:

Hello, Friend! ^^

The Answer Is 13 Inches <3

_______________________________________________________

Hope this helps! ^^ :3

3 0
3 years ago
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