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kvasek [131]
3 years ago
11

Please help!! I’ll give brainliest also!! Thank you!!

Mathematics
1 answer:
yan [13]3 years ago
3 0

Answer:

let me see and ill let you know

Step-by-step explanation:

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What value of ‘a’ makes the equation true? Show your work
gogolik [260]
Answer: 30/45=6/9
 30     6
___=___
 45     a

cross multiply
30a=270
divide both sides by 30
a=9

5.Answer=A

2 1/5=2 2/10

2 2/10+1 1/10=3 3/10

______________

Answer=-1

3/-5+(-4/10)=
3/-5-0.4
-0.6-0.4=-1
3 0
3 years ago
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Factor each linear expression. If the expression cannot be factored, write cannot be factored. 36x – 9
ki77a [65]

Answer:

9(4x - 1)

Step-by-step explanation:

The given linear expression is:

36x - 9

Since, 36 can be written as 9 times 4, we can rewrite the above expression as:

9(4x) - 9

Taking 9 as common, the expression changes to:

9 (4x - 1)

This linear expression can no linger be factorized further.

So,

36x - 9 = 9(4x - 1)

3 0
3 years ago
Read 2 more answers
Which is a valid proportion? <br> A. 3/4=21/28<br> B. 5/6=29/30<br> C.4/7=16/49<br> D.2/5=12/15
LiRa [457]
A valid proportion would be 3/4=21/28.

You would multiply both the 3 & 4 is 3/4 by 7 to get 21/28.

Hope this helps!
Can u plz mark me as brainliest? I really need it!
8 0
3 years ago
Read 2 more answers
2) As part of traffic accident investigations, the speed of a car involved can be approximately determined by checking actual sk
dezoksy [38]

a) The speed of car was 60 mph.

b) The speed of car was 45 mph.

Step-by-step explanation:

Given,

a = actual skid marks

p = test skid marks

Formula;

s=30*\sqrt{\frac{a}{p}}\\

a) a = 144 feet, p = 36 feet

Putting in formula;

s = 30*\sqrt{\frac{144}{36}}\\\\s=30*\sqrt{4}\\\\s=30*2\\\\s=60

The speed of car was 60 mph.

b) a = 153 feet, p = 68 feet

Putting in formula;

s=30*\sqrt{\frac{153}{68}}\\\\s=30*\sqrt{2.25}\\\\s=30*1.5\\\\s=45

The speed of car was 45 mph.

Keywords: substitution, speed

Learn more about substitution at:

  • brainly.com/question/10940255
  • brainly.com/question/10941043

#LearnwithBrainly

4 0
3 years ago
Which best summarizes the purpose of a W-4 form?
Naya [18.7K]

Answer:

<u>A</u>.) It helps determine the amount of taxes withheld from an individual's paycheck.

Step-by-step explanation:

Got it correct on the quiz!

3 0
3 years ago
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