Pls solve the simultaneous equation in the attachment.

Part a) The solution is the ordered pair (6,10)

Part b) The solutions are the ordered pairs (7,3) and (15,1.4)

Step-by-step explanation:

Part a) we have

----> equation A

----> equation B

Multiply equation A by 10 both sides to remove the fractions

----> equation C

isolate the variable y in equation B

----> equation D

we have the system of equations

----> equation C

----> equation D

Solve the system by substitution

substitute equation D in equation C

solve for x

Multiply by 3 both sides

Combine like terms

Find the value of y

The solution is the ordered pair (6,10)

Part b) we have

---> equation A

----> equation B

isolate the variable x in the equation B

----> equation C

substitute equation C in equation A

solve for y

Solve the quadratic equation by graphing

The solutions are y=1.4, y=3

see the attached figure

Find the values of x

For y=1.4

For y=3

therefore

The solutions are the ordered pairs (7,3) and (15,1.4)

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.