All categories

3 years ago

$8.07 is 30% of what number?

Mathematics

2 answers:

Westkost [7]3 years ago

4 0

Answer:

$26.9

Step-by-step explanation:

30/100 * x = $8.07

30x=807

divide both sides by 30

therefore

x =$26.9

Ber [7]3 years ago

3 0

Answer:

$11.53

Step-by-step explanation:

Hope i helped :)

You might be interested in

Need help ASAP

joja [24]

Part (1) : The solution is $729$

Part (2): The solution is $\frac{1}{16 x^{8}}$

Part (3): The solution is $\frac{2 x^{2}}{3 y z^{7}}$

Explanation:

Part (1): The expression is $3^{2} \cdot3^{4}$

Applying the exponent rule, $a^{b} \cdot a^{c}=a^{b+c}$ , we get,

$3^{2} \cdot 3^{4}=3^{2+4}$

Adding the exponent, we get,

$3^{2} \cdot3^{4}=3^6=729$

Thus, the simplified value of the expression is $729$

Part (2): The expression is $\left(2 x^{2}\right)^{-4}$

Applying the exponent rule, $a^{-b}=\frac{1}{a^{b}}$ , we have,

$\left(2 x^{2}\right)^{-4}=\frac{1}{\left(2 x^{2}\right)^{4}}$

Simplifying the expression, we have,

$\frac{1}{2^4x^8}$

Thus, we have,

$\frac{1}{16 x^{8}}$

Thus, the value of the expression is $\frac{1}{16 x^{8}}$

Part (3): The expression is $\frac{2 x^{4} y^{-4} z^{-3}}{3 x^{2} y^{-3} z^{4}}$

Applying the exponent rule, $\frac{x^{a}}{x^{b}}=x^{a-b}$ , we have,

$\frac{2x^{4-2}y^{-4+3}z^{-3-4}}{3}$

Adding the powers, we get,

$\frac{2x^{2}y^{-1}z^{-7}}{3}$

Applying the exponent rule, $a^{-b}=\frac{1}{a^{b}}$ , we have,

$\frac{2 x^{2}}{3 y z^{7}}$

Thus, the value of the expression is $\frac{2 x^{2}}{3 y z^{7}}$

8 0

3 years ago

What have I done wrong and where please help me

lys-0071 [83]

12x - 18 - 4x -2
12x - 4x = 8x (yours 12x - 4x = 8)
-18 - 2 = -20 (yours -18 -1 = 17)

answer:

8x - 20

6 0

3 years ago

Plz help!! Anyone? Would mean a lot

andrezito [222]

12 is A
13 is B
14 is b

6 0

3 years ago

Read 2 more answers

What is the best approximation for the circumference of a circle with a radius of 125 m?

ANEK [815]

Answer:

Option B is correct

circumference of a circle is 785 m

Step-by-step explanation:

Circumference of the circle(C) is given by:

$C = 2\pi r$

where

r is the radius of the circle

As per the statement:

radius of the circle is 125 m

then substitute in [1] we have

$C = 2 \cdot 3.14 \cdot 125$

Simplify:

C = 785 m

Therefore, the circumference of a circle is 785 m

8 0

3 years ago

Read 2 more answers

What is the value of the expression below?<br> 3.5 x 103

grigory [225]

Answer:

360.5

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers