If d varies directly with t and d is 105 when t is 3 find d when t is 8

If D varies directly with t and D is 105 when t is 3 then value of D when t is 8 is equal to 280

Solution:

In this sum we have been given that there is a direct relationship between d and t.

If d is 105 when t is 3 so now, we need to find d when t is 8.

To do this we can simply use the unitary method. The definition of unitary method is, the unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Now, according to the definition we need to find the value of d when t is 1.

This can be done as follows:

Therefore, the value of d when t = 1 is 35.

Now, if the value of t=8 then d becomes:

Hence, when t=8 the value of d is 280.

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3

5 + 8 +7 + 4 + 0 +1 = 25

step-by-step explanation: