Question

Please Help with All 4 Questions with Full Solving Please

Answer 1

Answer:

I don't know the correct answer sorry dear

Answer 2

#askgoodquestion #here'stheanswer

okkkk it's tooo lengthy so I performed only starting 3 and last one

30Ans.)

here the solution of equation is 5

because,

p(y) = 3y-2= 13

p(5) = 3(5)-2 = 13

15 -2 = 13

13 = 13

LHS=RHS

we done this by trial and error method,

and also ,

p(y) = 3y-2=13

p(4) = 3(4) -2

= 12 -2

10 ≠ 13

LHS≠ RHS

SO ,4 IS NOT A SOLUTION

samely,

--> 3(3) -2

= 9-2

= 7 ≠ 13

LHS ≠ RHS

SO,3IS ALSO NOT AN SOLUTION

---> 3(2) -2

= 6 -2

= 4 ≠ 13

LHS ≠ RHS

SO,2 IS ALSO NOT AN SOLUTION.

31ans)

2 . 1 0 7 kg

- 0 . 3 1 4 kg

------------------------

1 . 7 9 3 kg

ans is 1.793 kg

b)

Soumya travelled total distance = distance she traveled by bus + distance she traveled by car + distance she traveled by foot

= 5 km 52 m

2 km 265 m

+1 km 30 m

------------------------

8 km 347 m

Soumya travelled 8km347m in total.

32ans)

a)

firstly let's find proper speed

1hr = 60 min

1/2 hr = 30 min

now ,

speed = 90km in

$2 \frac{1}{2} hr \: = 2(60) + \frac{1}{2} (30) \\ = 120 \: + 15 \\ = 135min$

so ,

$\frac{90}{135} = \frac{2km}{3min}$

or you can say

2km in 3min

so ,

1km in

$\frac{3}{2} min$

= 1.5 min

so, 30km in = 30×1.5

= 45min

now , 1hr = 60min

so , 45min = 30 min + 15min

or

$\frac{1}{2} hr + 15min$

or 1/2hr 15min

(b)

as we know speed is 1km in 1.5 min

so , 2hr = 2× 60 min

= 120 min

now ,

for distance ,

=

$\frac{120}{1.5} = 80km$

answer is 80 km

34 ans )

area of shaded region == area of the bigger rectangle - (area of first small rectangle + area of second small rectangle)

= 30 × 24 - ( 6×7 + 6×8 )

= 720 - (42+48)

= 720-90

$630 \: {m}^{2}$

so the shaded region has area 630 meter square

now,

rate of tiling =

$rs.15 \: per \: {m}^{2}$

so ,

total cost of tiling the shaded region is,

= 15 × 630

= rs.9450

total cost of tiling the shaded region is rs. 9450