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2 years ago

Brainliest goes to whoever answers correctly and explains also if you want extra points answer my other questions

Mathematics

1 answer:

maria [59]2 years ago

4 0

Answer:

isn't that the same as before? :D

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Rajan needs 1 liter of 15% hydrochloric acid solution for an experiment. He checks his storage cabinet, but he only has a 5-lite

yarga [219]

Answer:

Rajan must use 0.75 liters of 5% hydrochloric acid solution and 0.25 liters of 45% hydrochloric acid solution.

Step-by-step explanation:

Let us assume that, x liters of the 5% hydrochloric acid and y liters of the 45% hydrochloric acid solutions are combined.

As Rajan need total of 1 liter of solution, so

$x+y=1$

i.e $x=1-y$ --------------------1

As Rajan needs 5% hydrochloric acid and 45% hydrochloric acid to make a 1 liter batch of 15% hydrochloric acid, hence acid content of the mixture of two acids will be same as of the final one, so

$0.05x+0.45y=1\times 0.15$

i.e $5x+45y=15$ -------------2

Putting value of x from equation 1 in equation 2,

$\Rightarrow 5(1-y)+45y=15$

$\Rightarrow 5-5y+45y=15$

$\Rightarrow 5+40y=15$

$\Rightarrow 40y=15-5=10$

$\Rightarrow y=0.25$

Putting the value of y in equation 1,

$x=1-0.25=0.75$

Therefore, Rajan must use 0.75 liters of 5% hydrochloric acid solution and 0.25 liters of 45% hydrochloric acid solution.

5 0

3 years ago

Camerons soccer team has 168$ tp buy uniforms that cost 20$ each. How many uniforms can his team buy? Will there be any money le

Zina [86]

Hi ydtt yo Ight I’m going live with me I love all the girls I have to do it for a couple days I have

8 0

3 years ago

Using substitution, determine the solution X=4 and. y=2x+8

nikklg [1K]

Y=2(4)+8
y=8+8
y=16
Hope this helps :)

6 0

2 years ago

Read 2 more answers

Which graph shows a function and its inverse? need help asap

ratelena [41]

I would say b but i’m not 100% sure lol

5 0

2 years ago

NO LINKS OR ASSESSMENT!!!

Dafna1 [17]

Answer:

G(x)=2x+1 , vertical stretch by 2 units and shifted 1 unit up

Given :

Original function f(x)=x

To find :

Function G whose graph is a vertical stretch by 2 and move one unit up

We use the given function to for vertical stretch and shifting up

for Vertical stretch multiply the factor by f(x)

f(x) becomes 2f(x)

so the function becomes 2x

For moving up , we need to add the units at the end of the function

f(x)+1

2x+1

Hence, G(x)=2x+1

Learn more : /brainly.com/question/4521517

Step-by-step explanation:

4 0

2 years ago