All categories

3 years ago

Witch of the following are equivalent to 45%? choose all that apply.

Mathematics

2 answers:

olga55 [171]3 years ago

8 0

B) 0.45 and D) 9/20 are both eqivalent to 45%.

fomenos3 years ago

6 0

Hello there! Just by looking at the choices, C is definitely out, because 9/10 is equivalent to 90%, not 45%. Looking at answer choice A, that number equals 4.5%, because 0.045 * 100 is 4.5%. In this case, A is also eliminated. 0.45 is equivalent to 45%, because 0.45 * 100 is 45%. B works. D also works, because 9/20 is 0.45, and once again, 0.45 * 100 is 45%. 0.45 and 9/20 are equivalent to 45%. The answers are B and D.

You might be interested in

PLEASE ANSWER! WILL GIVE MANY POINTS

andriy [413]

Answer:

The person will feel dizzy.

5 0

3 years ago

Attention!

Bezzdna [24]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Subtract. −13−(−6) a−19 b−7 c-19

Elza [17]

Answer:

-7

Step-by-step explanation:

-13-(-6)

-13+6

-7

6 0

2 years ago

Read 2 more answers

In an orchard, there are 18 apple trees, 23 orange trees, and a cherry tree. What is the ratio of orange trees to cherry trees?

Nikitich [7]

Answer:

18:23

Step-by-step explanation:

18:23 (cannot be simplified further as there is no common factor)

7 0

3 years ago

Read 2 more answers

What is the volume of the composite figure? Explain your work. A complete answer should include how you broke up the figure, whi

Sphinxa [80]

Answer:

$15,000\:\mathrm{mm^3}$

Step-by-step explanation:

The composite figure consists of a square prism and a trapezoidal prism. By adding the volume of each, we obtain the volume of the composite figure.

The volume of the square prism is given by $V=s^2\cdot h$ , where $s$ is the base length and $h$ is the height. Substituting given values, we have: $V=14^2\cdot 30=196\cdot 30=5,880\:\mathrm{mm^3}$

The volume of a trapezoidal prism is given by $V=\frac{b_1+b_2}{2}\cdot l\cdot h$ , where $b_1$ and $b_2$ are bases of the trapezoid, $l$ is the length of the height of the trapezoid and $h$ is the height. This may look very confusing, but to break it down, we're finding the area of the trapezoid (base) and multiplying it by the height. The area of a trapezoid is given by the average of the bases ( $\frac{b_1+b_2}{2}$ ) multiplied by the trapezoid's height ( $l$ ).

Substituting given values, we get:

$V=\frac{14+24}{2}\cdot (30-14)\cdot 30,\\V=19\cdot 16\cdot 30=9,120\:\mathrm{mm^3}}$

Therefore, the total volume of the composite figure is $5,880+9,120=\boxed{15,000\:\mathrm{mm^3}}$ (ah, perfect)

Alternatively, we can break the figure into a larger square prism and a triangular prism to verify the same answer:

$V=30^2\cdot 14+\frac{1}{2}\cdot10\cdot 16\cdot 30=\boxed{15,000\:\mathrm{mm^3}}\checkmark$

8 0

2 years ago