3 years ago

What is 40% of 30? fffffffffffff

Mathematics

2 answers:

SSSSS [86.1K]3 years ago

7 0

Answer:

Step-by-step explanation:

30 × 40/100 = 12

or, 30 × 0.4 = 12

Both methods are correct.

Hope this helps!

steposvetlana [31]3 years ago

6 0

All we have to do to solve this problem is multiply 30 by 40%. 40% is equal to .4 (40/100)

So,

$30\times.4=12$

The answer is 12

You might be interested in

Rose Marie is shopping for some new shoes. The shoes she wants cost

ololo11 [35]

Answer:

Step-by-step explanation:

7 0

3 years ago

F(x)= <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4x%20-%207%7D%7B10%7D%20" id="TexFormula1" title=" \frac{4x - 7}{10} "

Naily [24]

Answer:

To find f-¹(x) of f(x) equate f(x) to y

That's

f(x) = y

So we have

$y = \frac{4x - 7}{10}$

Next interchange the variables that's x becomes y and y becomes x

That's

$x = \frac{4y - 7}{10}$

Next make y the subject

Cross multiply

We have

4y - 7 = 10x

Move -7 to the right side of the equation

4y = 10x + 7

Divide both sides by 4

We have the final answer as

$y = \frac{10x + 7}{4}$

$f ^{ - 1} (x) = \frac{10x + 7}{4}$

Hope this helps you

7 0

3 years ago

What is the congruence correspondence, if any, that will prove the given triangles congruent?

alina1380 [7]

Answer:

SAS

Step-by-step explanation:

the two triangles have two congruent sides and one congruent angle

5 0

2 years ago

Find the value of x. Round to the nearest tenth.

nordsb [41]

Step-by-step explanation:

here,,

a=3,b=10,C=120°

c^2=a^2+b^2-2ab cos120°

=(3)^2 +(10)^2 _2 (3)(10)(-1/2) [cos120°=-1/2]

=9+100-(-30)

=109+30

=139

c=(139 )1/2=11.79

c=12

3 0

3 years ago

Alex's wardrobe is 2 yards tall. How tall is the wardrobe in feet?<br> feet

hodyreva [135]

The answer is six feet

7 0

3 years ago