All categories

3 years ago

1 a. Rhian measures the height of one of her tomato plants as 20 cm. Next week it is 15% taller. What is its new height?

Mathematics

1 answer:

STatiana [176]3 years ago

3 0

1a. The new height of the tomato plant is 23cm.

To find this, we need to find what 15% of 20 is and then add it to the 20. To find 15% of 20, we multiply.

15% * 20 = 3

Now we add that to 20 to get the final answer.

20 + 3 = 23

1b. The new tomato plant grew 30%.

In order to find this, we need to use the percent change formula. The formula is below for you.

(New - Old)/Old * 100 = %Change

(312 - 240)/240 * 100 = %Change

72/240 * 100 = %Change

.3 * 100 = %Change

30% = %Change

You might be interested in

What is the area of the regular pentagon below

nordsb [41]

Answer:

Step-by-step explanation:

By definition, all sides of a regular polygon are equal in length. If you know the length of one of the sides, the area is given by the formula:

$A=\dfrac{s^2\cdot n}{4\tan \frac{180^{\circ}}{n}},$

where s is the side length, n is the number of sides.

In your case, s=20 ft, n=5,so

$A=\dfrac{20^2\cdot 5}{4\tan \frac{180^{\circ}}{5}}=\dfrac{400\cdot 5}{4\tan 36^{\circ}}=\dfrac{500}{0.73}\approx 688.2\ ft^2$

8 0

3 years ago

Read 2 more answers

Javier used the expression below to represent his score in a game of mini-golf.

strojnjashka [21]

Simplify by combing like terms to get 2x+5

The answers would be:

the coefficient is 2

the constant is 5

There are two terms.

6 0

3 years ago

Read 2 more answers

A sphere shaped orange has a diameter of 7 centimeters. Find the volume of the orange to the nearest tenth.

krok68 [10]

22cm^3

Step-by-step explanation:

My education system is different so I dont know what nearest tenth would mean in this .

But going mathematically:

Its diameter is 7 centimetres.

So to find its volume we can use the formula pi/d or pi/r^2

Now, 22/7÷7 would be 22cm³.

3 0

3 years ago

Math sucks at times and we all know that. So, instead of coming onto Brainly for every answer to your math, this website gives y

skelet666 [1.2K]

Answer:

thanks

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Solve the system of equation with substitution.

kipiarov [429]

Answer:

fgg I have to go to sleep otp tonight and I really want to talk to you tttttt and I really want to talk to you about it when I get home I will send you a picture of the back of the house and the time is right now but I will be there in a few minutes and I will be there in a few minutes and I will

5 0

3 years ago