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3 years ago

PLEASE HELP! What is the result when the number 78 is increased by 55%?

Mathematics

2 answers:

SOVA2 [1]3 years ago

7 0

Answer: 120.9 I believe.

Step-by-step explanation:

55% of 78 is 42.9.

(55 x 78 over 100 = 42.9)

Therefore take 78 + 42.9.

120.9

skad [1K]3 years ago

3 0

Answer:

hope this helps

Step-by-step explanation:

.55×78=42.9

78+42.9

=120.9 round off 121

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The radius of the large sphere is double the radius of the

valentinak56 [21]

Answer:

Step-by-step explanation:

just do the comparation

Vb : Vs

b for big and s for small

4/3 π rb³ : 4/3 π rs³ (since there are 4/3 and π on both side, we can eliminate them so)

Vb : Vs = rb³ : rs³

Vb : Vs = (2rs)³ : rs³

Vb : Vs = 8rs³ : rs³ (delete the r³ on both side)

Vb : Vs = 8 : 1

so Vb is 8 times larger in volume than the small one

3 0

3 years ago

4(5x-6)=2(8x+10) how to solve

Pavel [41]

Hello! :)

Answer:

$\boxed{X=11}$

*The answer must have a POSITIVE sign!*

Step-by-step explanation:

Expand with distributive property: a(b+c)=ab+ac

4*5=20

6*4=24

20x-24

2*8=16

2*10=20

16x+20

20x-24=16x+20

First, you add by 24 both sides of an equation.

20x-24+24=16x+20+24

20x=16x+44

You subtract by 16x both sides of an equation.

20x-16x=16x+44-16x

4x=44

Then, you divide by 4 both sides of an equation.

4x/4=44/4

Divide by the numbers from left to right.

44/4=11

<u><em>X=11 is the final answer</em></u>

Hope this helps!

Have a nice day! :)

-Charlie

Thanks!

4 0

3 years ago

How many yards are equivalent to 30 feet.explain how u calculate your answer

Nady [450]

Using the process of dimensional analysis, a method of conversion, 30 ft is equivalent as 10 yards.

7 0

4 years ago

Read 2 more answers

May someone help please fast! Thanks!

spin [16.1K]

Answer:

10m

Step-by-step explanation:

We can set up an equation to solve this.

$\frac{20}{25} =\frac{8}{x}$

This equation can be created since we are given two similar sides of both triangles.

Now, cross multiply and simplify to solve for $x$ .

$20x=200\\x=10$

The answer is sensible, and if you put 10 into the same equation from earlier, you will see that it is accurate.

Therefore, the value of $x$ is 10m.

4 0

4 years ago

An internet company randomly selected 50 of its customers and asked them how many hours per week they use the internet. Of those

LenKa [72]

Answer:

Number of person use more than 15 hours per week from 800 subscribers = 448

Step-by-step explanation:

Given:

Total number of sample = 50

Result = 28 Person use more than 15 hours per week

Find:

How many people use more than 15 hours per week

Computation:

⇒ Probability of Person use internet more than 15 hours per week = 28 / 50

⇒Probability of Person use internet more than 15 hours per week = 0.56

⇒Number of person use more than 15 hours per week from 800 subscribers = 800 × Probability of Person use internet more than 15 hours per week

⇒Number of person use more than 15 hours per week from 800 subscribers = 800 × 0.56

⇒ Number of person use more than 15 hours per week from 800 subscribers = 448

4 0

3 years ago