Question

The expression 1.5d +20 predicts the height in cm of a plant d days from today,
.what is predicted height of the plant 15 days from today?

Answer 1

SOLUTION

GIVEN

The expression 1.5d +20 predicts the height in cm of a plant d days from today

TO DETERMINE

The predicted height of the plant 15 days from today

EVALUATION

Here it is given that The expression 1.5d +20 predicts the height in cm of a plant d days from today

Let h(d) be the height of a plant d days from today

So

$\sf{h(d) = 1.5d + 20}$

Now we have to find the predicted height of the plant 15 days from today

So d = 15

$\sf{h(15) = (1.5 \times 15) + 20}$

$\sf{ = 22.5 + 20}$

$= 42.5$

Hence the predicted height of the plant 15 days from today = 42.5 cm

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Answer 2

SOLUTION

GIVEN

The expression 1.5d +20 predicts the height in cm of a plant d days from today

TO DETERMINE

The predicted height of the plant 15 days from today

EVALUATION

Here it is given that The expression 1.5d +20 predicts the height in cm of a plant d days from today

Let h(d) be the height of a plant d days from today

So,

h(d) = 1.5d + 20

Now we have to find the predicted height of the plant 15 days from today

=h(15) = (1.5 × 15) + 20

=22.5+20

= 42.5

Hence the predicted height of the plant 15 days from today = 42.5 cm

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