bandlfasching bandlfasching

22-07-2021
Mathematics

contestada

Riley wants to make 100ml of 25% saline but only has access to 12% and 38% saline mixtures. x= 12% y=38%

Respuesta :

loconte loconte

22-07-2021

Answer:

x = 50

y = 50

Step-by-step explanation:

[tex]\begin{bmatrix}x+y=100\\ 0.12x+0.38y=25\end{bmatrix}[/tex]

.12(100-y) + .38y = 25

x = 50

y = 50

Answer Link

Otras preguntas

Chelsea has vivid childhood memories of Saturday mornings when her father used to take her out to a restaurant for breakfast. It was their special time together

what are 8 importance of email? plzzz help

what is an equation of the line that passes through the points (3,1) and (6,6)?

Naturally occuring silver consists of two isotopes: 107Ag (51.84%) with an isotopic mass of 106.9051 amu and 109Ag (48.16%) with an isotopic mass of 108.9048 am

In most business organizations, the chief management accountant is called the a.controller b.chief accounting officer c.chairman of the board d.chief executive

define biotic factors

You decide to sell short 50 shares of Ford at $10 per share. The initial margin requirement is 50%. The maintenance margin is 40%. What is the minimum amount of

You measure the power delivered by a battery to be 5.83 W when it is connected in series with two equal resistors. How much power will the same battery deliver

Assume the total expense for your current year in college equals $35,000. Approximately how much would your parents have needed to invest 17 years ago in an acc

If f(x)=3/x and g(x)=3x, which of the following statements is true? a. (f*g)(2)=2 b. (g*f)(2)=0 c.(f*g)(9)=1 d. (g*f)(-9)=-1