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2 years ago

What is the solution to the system of equations graphed below?

Mathematics

1 answer:

ArbitrLikvidat [17]2 years ago

8 0

Answer:

Step-by-step explanation:

I use my calculator

Step 1: Press 2nd button

Step 2: Then press tan button(sys-solv)

Step 3: Then change the slope intercept form to standard form

Ax+By=C

Step 4: Then put it in the calculator in standard form

And you get X=6 and Y=9

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Paul drinks 6 cups of coffee each day. Each cup contains 275 milliliters of coffee. How

scZoUnD [109]

<h3>Answer: 11.55 liters</h3>

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Work Shown:

275 mL = 275/1000 = 0.275 L

1 cup = 0.275 L

6 cups = 6*0.275 L = 1.65 L

He drinks 1.65 L per day, so over 7 days he drinks a total of 7*1.65 = 11.55 liters.

5 0

3 years ago

Read 2 more answers

Ques

otez555 [7]

No, because the 9 pounds would cost 22.5, and that is 5 cents more than he has

6 0

3 years ago

Plsssss help me its due in 5 minss i beg.

Oliga [24]

Answer:

15.13

Step-by-step explanation:

To find diameter, divide circumference by pi or 3.14

I'm going to change the fraction to a decimal, so 47.5

47.5/3.14 = 15.1273885

Round to nearest hundredth gives you 15.13

5 0

3 years ago

A chemist wishes to mix a solution that is 6% acid. She has on hand 14 liters of a 4% acid solution and wishes to add some 10% a

jonny [76]

she should add 7 liters of 10% acid solution

Explanation

Step 1

set the equation:

a) let X represents the amount os solution that is 4% acid

let Y represents the amount os solution that is 10% acid

$\begin{gathered} \frac{4}{100}X+\frac{10}{100}Y=\frac{6}{100}(x+y) \\ \end{gathered}$

if he has 14 liters of 4% acid solution

$x=14$

$\begin{gathered} \frac{4}{100}X+\frac{10}{100}Y=\frac{6}{100}(X+Y) \\ \frac{4}{100}*14+\frac{10}{100}Y=\frac{6}{100}(X+Y) \\ 0.56+0.1Y=0.06(14+Y) \\ 0.56+0.1Y=0.84+0.06Y \\ \end{gathered}$

Step 2

solve the equation :

$\begin{gathered} 0.56+0.1Y=0.84+0.06Y \\ subtract\text{ 0.06Y in both sides} \\ 0.56+0.1Y-0.06Y=0.84+0.06Y-0.06Y \\ 0.56+0.04Y=0.84 \\ subtract\text{ 0.56 in both sides} \\ 0.56+0.04Y-0.56=0.84-0.56 \\ 0.04Y=0.28 \\ divide\text{ both sides by 0.04} \\ \frac{0.04Y}{0.04}=\frac{0.28}{0.04} \\ Y=7 \end{gathered}$

therefore,

she should add 7 liters of 10% acid solution

I hope this helps you

8 0

1 year ago

17/100 in simplest form

sveticcg [70]

17 is a prime number so the simplest form is 17/100

5 0

3 years ago