All categories

3 years ago

Please help me !! i do not understand

Mathematics

1 answer:

Oduvanchick [21]3 years ago

8 0

Answer:

Step-by-step explanation:

You might be interested in

One container is filled with mixture that is 25% acid. A second container is filled with a mixture that is 55% acid. The second

algol13

Answer:

Therefore the third container contains $\frac{735}{17}\%$ = 43.23 % acid.

Step-by-step explanation:

Given that, One container is filled with the mixture that 25% acid. 55% acid is contain by second container.

Let the volume of first container be x cubic unit.

Since the volume of second container is 55% larger than the first.

Then the volume of the second container is

$= (V\times \frac{100+55}{100})$ cubic unit.

$=\frac{155}{100}V$ cubic unit.

The amount of acid in first container is

$=V\times \frac{25}{100}$ cubic unit.

$=\frac{25}{100}V$ cubic unit.

The amount of acid in second container is

$=(\frac{155}{100}V \times \frac{55}{100})$ cubic unit.

$=\frac{8525}{10000}V$ cubic unit.

Total amount of acid $=(\frac{25}{100}V+\frac{8525}{10000}V)$ cubic unit.

$=(\frac{2500+8525}{10000}V)$ cubic unit.

$=(\frac{11025}{10000}V)$ cubic unit.

Total volume of mixture $=(V+\frac{155}{100}V)$ cubic unit.

$=\frac{100+155}{100}V$ cubic unit.

$=\frac{255}{100}V$ cubic unit.

The amount of acid in the mixture is

$=\frac{\textrm{The volume of acid}}{\textrm{The amount of mixture}}\times 100 \%$

$=\frac {\frac{11025}{10000}V}{\frac{255}{100}V}\times 100\%$

$=\frac{735}{17}\%$

Therefore the third container contains $\frac{735}{17}\%$ acid.

5 0

3 years ago

Help plsss fast plsplspsls

Bess [88]

The first answer is c
42cm(2)

4 0

3 years ago

Solve for a.

babymother [125]

Answer:

a=17

Step-by-step explanation:

a-5=12

a=12+5

a 17

5 0

3 years ago

PLEASE HELP! IF YOU DON'T KNOW DON'T ANSWER! 60 POINTS!!

postnew [5]

Answer:

an = 1/2 (4)^ (n-1)

a6 = 512

Step-by-step explanation:

The formula for a geometric sequence is

an = a1 (r)^(n-1)

where an is the term of the sequence

a1 is the initial term of the sequence

r is the ratio

and n is the term number

We know a1 = 1/2 and r =4

I will assume that x=6 means we want to know the 6th term

an = 1/2 (4)^ (n-1)

We want to find the 6th term

a6 = 1/2 * 4^(6-1)

a6 = 1/2 * 4^5

a6 = 512

3 0

3 years ago

Which expressions have a quotient of 4/5

goblinko [34]

Answer:

b and e

Step-by-step explanation:

a. 5/2 ÷ 1/2 =

5/2*2 =
5

b. 6/9 ÷ 5/6

2/3*6/5 =
2*2/5 =
4/5

c. 3/6 ÷ 2/5

1/2 * 5/2 =
5/4

d. 7 1/2 ÷ 6 =

15/2*1/6 =
5/(2*3) =
5/6

e. 1 1/3 ÷ 1 2/3=

4/3 ÷ 5/3 =
4/3 * 3/5 =
4/5

5 0

3 years ago

Read 2 more answers