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Ksju [112]
3 years ago
14

2/5 as a decimal and percentage

Mathematics
2 answers:
erastova [34]3 years ago
8 0
2/5 in a decimal form= 0.4

2/5 in a percentage form= 40%

Hope this Helps!
Agata [3.3K]3 years ago
4 0
As decimal... .4
and as percent..... 2/5×100=40℅
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a man is four times as old as his son in five years time he will be three times as old as his son what is the present age of the
Oksi-84 [34.3K]

I would start by setting up a chart like I did below.

Label one column age now and the other age in 5 years.

Since we don't know the son's age we use x.

We do know that the man's age is 4 times the son's age.

So the man's age will be 4x.

In the age in 5 year column, we add 5 to their current ages.

Now set up our equation.

Since it says "in five years" we use information in second column.

In 5 years time, he, "4x + 5", will be, equals,

3 times as old as his son, "3(x + 5)".

So we have 4x + 5 = 3(x + 5).

Solving from here, we find that x = 10.

So the son is 10 and the man is 4 times his age or 40.

4 0
3 years ago
Which of the following represents 8​
aniked [119]

Hello!

your answer is: A. 8

the other answers contain equations that do not result in 8

B is equal to 36

C is equal to 40,320

I hope this helps, and have a nice day!

4 0
3 years ago
Read 2 more answers
Kiley went 5.7 km/h north and then went 5.8 km/h west. From start to finish, she went 8.1 km/h northwest to find Maya Rodriguez.
enot [183]

Answer:

  • D. 5.7 km/h north and 5.8 km/h west are instantaneous velocities, while 8.1 km/h northwest is the average velocity.

Step-by-step explanation:

We are given directions and position change.

This is about the velocity, the speed doesn't take into account the direction.

We also see the change in the velocity. The numbers give us instantaneous velocities and the displacement is the average velocity as the sum of vectors.

Considering the above explanation, correct choice is D.

6 0
2 years ago
If ​f(x) = <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D" id="TexFormula1" title="\sqrt{x}" alt="\sqrt{x}" align="absmiddle"
kogti [31]

Answer:

Step-by-step explanation:

Given are two functions f and g defined as

f(x) =\sqrt{x} \\g(x) = x^3+8

we have to find the composition of functions in all orders

1) a)(fog)(x)=f{g(x)}=f(x^3+8) =\sqrt{x^3+8} \\\\(fog)(2) = =4,-4

b) (fof)(x) = f{f(x)}=f(\sqrt{x} {=\sqrt[4]{x} \\\\When x=25, ans= \sqrt{5}

c) (gof)(x) = g(\sqrt{x}) = (\sqrt{x})^3+3 = x^{\frac{3}{2} } +8\\\\d)(fog)(x)=f{g(x)}=f(x^3+8)

8 0
3 years ago
Solve the following equation for q. 8q + 4p + 4 = 4q – 8.
marishachu [46]

Answer:

a. q= -p - 3

Step-by-step explanation:

8q+ 4p + 4= 4q - 8

8q (- 8q) + 4p + 4 = 4q (-8q) -8

4p +4 = -4q -8

4p + 4 (+8) = -4q -8 (+8)

4p + 12 = -4q

(4p + 12)/-4 = (-4q)/-4

-p -3 = q

4 0
3 years ago
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