4 years ago

Two-thirds of a number is equal to 20. What is the number?

Mathematics

1 answer:

Marina CMI [18]4 years ago

7 0

Answer:

Step-by-step explanation:

Half that is 1/3 of the number, which is 10. Then 3/3 of the number is 3×10 = 30.

The number is 30.

You might be interested in

Find the slope between (1, 3/4) and (1, 2)

Marizza181 [45]

$(x_1;\ y_1);\ (x_2;\ y_2)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\\\\\left(1;\ \dfrac{3}{4}\right);\ (1;\ 2)\\\\m=\dfrac{2-\frac{3}{4}}{1-1}=\dfrac{2\frac{3}{4}}{0}!!!\ Divsion\ by\ zero!!!\\\\Answer:The\ slope\ is\ not\ exist.$

5 0

3 years ago

Is the following relation a function?<br><br> Yes<br> No

s2008m [1.1K]

The it is a function

4 0

3 years ago

Identify the polynomial that represents the shaded area of the figure

Annette [7]

Answer:

10a-41

Step-by-step explanation:

(a+4)(a-4)- $(a-5)^{2}$

= $a^{2}$ - $4^{2}$ -( $a^{2}$ -10a+25)

= $a^{2}$ -16- $a^{2}$ +10a-25

=10a-41

8 0

3 years ago

A. It has point symmetry.

xz_007 [3.2K]

Answer:

C. It has reflectional symmetry with five lines of symmetry.

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find the zeros of the function. f(x) = 9x^3 + 36x^2 + 27x

joja [24]

9x^3 + 36x^2 + 27x=0
9x(x^2 + 4x + 3)=0
9x(x+3)(x+1)=0
9x=0; x=0
x+3=0; x=-3
x+1=0; x=-1
answer
x=0; x=-1; x=-3

6 0

3 years ago

Read 2 more answers