4 years ago

Plz help thanks sm!!!!

Mathematics

1 answer:

Snowcat [4.5K]4 years ago

4 0

n = a number

2n = twice a number

2n - 7 = seven less than twice a number

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PLS HELP FAST I NEED IT

Gemiola [76]

Answer:

(b) 1:9

Step-by-step explanation:

(b) x*y : kx*ky, so 1:k² with k=3 is 1:9

(c) Assuming the rectangles get a z dimension, the volumes would have a ratio of xyz : xkykzk = xyz : xyzk³ = 1 : k³. With k=2 that is 1:8. But the z was never introduced so this is a bit inconclusive.

3 0

3 years ago

A man pays rs.1440 for income tax at rate of rs.2 per rs.100.Find his income.

KengaRu [80]

Total tax paid = 1440

Tax rate = Rs 2 per Rs 100

ATQ

1440 ÷ 2

= 720

720 × 100

Rs 72,000

His income is Rs 72,000

Answered by Gauthmath must click thanks and mark brainliest

7 0

3 years ago

Find the 50th term of 6,12,18,24

Ilia_Sergeevich [38]

Answer:

300

Step-by-step explanation:

You simply multiply 50 and 6. I hope you have a nice day. :)

6 0

2 years ago

Read 2 more answers

Determinaţi numerele : a = [1,2,3,4,5] b=[4,9,2,3] aub,anb,aubnb

matrenka [14]

Butttatoe!!!!!!!!!!!!!!!!!!!!!!!!!!!

3 0

3 years ago

Solve for x 2/(7x) = 6/5 5/21 -21/5 21/5 I don't know - 5/21

djverab [1.8K]

The answer is: [A]: " $\frac{5}{21}$ " .
________________________________________
Given:

2/ (7x) = 6/5;

→ (6/5) * (7x) = 2 ;

42x / 5 = 2 ;

42x = 2*5 ;

42x = 10 ;

42x /42 = 10/42 ;

x = 10/42 = (10÷2) / (42÷2) = 5/21 ;

x = $\frac{5}{21}$ ;

→ which is: Answer choice: [A]: " $\frac{5}{21}$ " .
__________________________________________________

7 0

3 years ago