Find the value of a and b when x = 10

a = 5x/2

b = 2x*(x – 5)/10x

The value of a and b when x = 10 are 25 and 1 respectively

GIven the functions

a = 5x/2  

b = 2x*(x – 5)/10x

If the value of x is 10, then;

a = 5(10)/2

a = 50/2

a = 25

Get the value of "b"

b = 2x*(x – 5)/10x

b = 2(10)(10-5)/10(10)

b = 20(5)/100

b = 100/100

b = 1

Hence the value of a and b when x = 10  are 25 and 1 respectively

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a=25,b=1

Step-by-step explanation:

This is a substitution question

The value of x is given which is 10

So let's solve the given question

a=5x/2

Since x=10

a=5(10)/2

a=50/2

a= 25

To get the value of b

Let's solve the next question given

b=2x*(x-5)/10x

Since x is 10

Let's substitute

b=2(10)*(10-5)/10(10)

So to solve this we will have to it step by step

b=20*5/100

b=20*0.05

Remember that * means multiply

Therefore

b=20×0.05

b=1

Therefore a is 25 and b is 1

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1

answer: y=4000x+14000

step-by-step explanation: