Mathematics: Slove for x 3x± 15=34

Slove for x 3x± 15=34 - id315347389780, guzmangisselle

Silkyruthie

01.02.2022

$x=\frac{34p}{3m^{15\\} }$

Step-by-step explanation:

Multiply both sides by p.

3m15x=34p

Divide both sides by 3m^15.

$\frac{3mx^{15} x}{3m^{15} } =\frac{34p}{3m^{15}}$

x= $\frac{34p}{3m^{15\\} }$

hope this helps

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cadez

14.09.2020

Given :-

The car arrives from city A to city B in 3 hours.Speed is increased by 20% .

To find :-

The new time taken .

Solution :-

Let us assume the distance between A and B be x and the initial speed by y . After 20% increase in the speed , new speed will be ,

$\blue{\dashrightarrow}$ Speed = 120y/100

$\blue{\dashrightarrow}$ Speed = 6/5y

• According to the Question ,

$\red{\dashrightarrow}$ Distance = Speed * Time

$\blue{\dashrightarrow}$ x = y * 3 hrs

$\red{\dashrightarrow}$ x = 3y

And ,

$\blue{\dashrightarrow}$ t = Distance/Speed

$\red{\dashrightarrow}$ t = x ÷ (6y/5)

$\blue{\dashrightarrow}$ t = 5x/6y

$\red{\dashrightarrow}$ t = 5 (3y)/6y

$\blue{\dashrightarrow}$ t = 5/2 hrs

$\red{\dashrightarrow}$ t = 2.5 hrs

Hence now it will take 2.5 hrs to go from A to B .

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