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2 years ago

9

Amanda increased the amount of protein she eats every day from 48 to 54 g. By what percentage did Amanda increase the amount of

protein she eats.

1 answer:

pantera1 [17]2 years ago

7 0

54-48=6 so you need to find what percent 6 is of 48. 48 x 0.06= 2.88 so it increased by 2.88%

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3 years ago

A triangle has ∠A, ∠B, and ∠C.<br> ∠B is 20° more than ∠A.<br> ∠C is double ∠B.<br> How big is ∠A?

san4es73 [151]

Answer:

30°

Step-by-step explanation:

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5 0

3 years ago

Read 2 more answers

A square with side x is changing with time where x(t)=3t+1. What is rate of change of the area of the square when t=2 seconds.

GuDViN [60]

Answer:

Rate of change of the area of the square is 42 units at t = 2.

Step-by-step explanation:

We note that the area of the square is given by: $A(x) = x^2$ but we aim to find $\frac{dA}{dt}$ . But we can use the chain rule to pull out that dA/dt. Doing so gives us:

$\frac{dA}{dt} = \frac{dA}{dx} \times \frac{dx}{dt}.$

Now, $\frac{dA}{dx} = 2x$ (by the power rule and $\frac{dx}{dt} = 3.$

But since we have "x" and not "t", we want to find what x is when t = 2. Substituting t = 2 gives us x(2) = 3(2) + 1 = 7.

So, finally, we see that:

$\frac{dA}{dt} = 2(7) \times 3 = 14 \times 3 = 42.$

7 0

3 years ago