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OverLord2011 [107]
3 years ago
8

1. The ages of Sonal and Manoj are in the ratio of 7:5. Ten years hence, the ratio of their ages will be 9:7. Find the present a

ge ​
Mathematics
1 answer:
sesenic [268]3 years ago
4 0

Answer:

Ratio of present ages of Sonal and Manoj = 7:5

Let us consider the ages of Sonal and Manoj to be 7x yrs. and 5x yrs. respectively.

After 10 years, ratio of their ages = 9:7

A/q,  7x+10/5x+10 = 9/7

or     9 (5x+10) = 7 (7x+10)

or     45x + 90 = 49x + 70

or      49x - 45x = 90 - 70

or      4x = 20

or       x  =  20/4  =  5 .

Therefore, present age of Sonal = 7x yrs. = 7 x 5 yrs. = 35 yrs.

                    present age of Manoj = 5x yrs. = 5 x 5 yrs. = 25 yrs.              

Step-by-step explanation:

You helped me before so thank you

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Answer:

C.1/6

Step-by-step explanation:

Initially the box has four $1 and six $5 bills. The probability of selecting a $5 bill in the first trial would be given as;

(number of $5 bills) / (total number of bills)

= (6)/(4+6) = 3/5

If in the first attempt we actually pick a $5 bill, the number of $5 bills will reduce by one to 5. Now, the probability of picking a $5 bill in the second attempt will be given as;

(new number of $5 bills) / (new total number of bills)

= (5)/(4+5) = 5/9

The new number of $5 bills will now be; 6 - 2 = 4 since we have already picked 2 without replacing them.

Now, the probability of picking a $5 bill in the third attempt will be given as;

(new number of $5 bills) / (new total number of bills)

= (4)/(4+4) = 1/2

Since the three attempts are independent, the probability of picking  all three $5 bills is;

3/5 * 5/9 * 1/2 = 1/6

7 0
2 years ago
For g(x)=3x+1, determine g(3-2x)
wolverine [178]

Answer:

g(3−2x)=12x2−36x+29

Step-by-step explanation:

Do you need step by step?

5 0
3 years ago
Simplify<br><img src="https://tex.z-dn.net/?f=%20%7Ba%7D%5E%7B%20-%202%7D%20%20%7Bb%7D%5E%7B3%7D%20" id="TexFormula1" title=" {a
DaniilM [7]

Answer:

Below

Step-by-step explanation:

● a^(-2) *b^3

●(1/a^2) *b^3

● b^3 / a^2

5 0
3 years ago
in there first year josh will be paid $14 and Tillery will be paid $7 after every year they will be giving a raise of $2. is the
Molodets [167]

Answer:

They are Proportional because there will always be a 7 dollar difference

Step-by-step explanation:

Josh is paid 14

Tillery is payed 7$

The relation is proportional

Josh ||| Tillery

___________

14      |||   7

16      |||   9

18      |||   11

20     |||   13

8 0
3 years ago
Find the difference PLSSSSSSSSSSSSSSSSSSSSSSSSS
Aneli [31]

Answer:

-1 5/9

Step-by-step explanation:

so first, simplify the signs so they don’t confuse you,

-5/6 - 17/18 + 2/9 (Since there are two negatives near the end, and their tecxhnically being mulitplied, -2/9*-1 (I added 1 for place holder) and when you multiply a negatives by a negative, you get a positive.

So find the lcm of the denominators which is 18 in this case

-15/18 - 17/18 + 4/18

Now solve the problem from left to right

you’ll get -1 5/9 if you simplified

4 0
2 years ago
Read 2 more answers
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