1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sveta_85 [38]
3 years ago
6

An ounce of milk contains 20 milligrams of calcium and 60 micrograms of vitamin A.

Mathematics
1 answer:
vova2212 [387]3 years ago
6 0

Answer:

10 ounces of milk and 50 ounces of orange juice

Step-by-step explanation:

Let the amount of milk be x ounces and the amount of orange juice be y ounces.

1. An ounce of milk contains 20 milligrams of calcium and 60 micrograms of vitamin A. Then x ounces of milk contain 20x milligrams of calcium and 60x micrograms of vitamin A.

2. An ounce of orange juice contains 40 milligrams of calcium and 10 micrograms of vitamin A. Then y ounces of orange juice contain 40y milligrams of calcium and 10y micrograms of vitamin A.

<u>Calcium:</u>

20x milligrams in milk

40y milligrams in orange juice

2,200 milligrams in total

Hence,

20x+40y=2,200

<u>Vitamin A:</u>

60x micrograms in milk

10y micrograms in orange juice

1,100 micrograms in total

Hence,

60x+10y=1,100

Solve the system of two equations:

\left\{\begin{array}{l}20x+40y=2,200\\ \\60x+10y=1,100\end{array}\right.

Divide each equation by 10:

\left\{\begin{array}{l}2x+4y=220\\ \\6x+y=110\end{array}\right.

From the second equation:

y=110-6x

Substitute it into the first equation:

2x+4(110-6x)=220\\ \\2x+440-24x=220\\ \\2x-24x=220-440\\ \\-22x=-220\\ \\22x=220\\ \\x=10\\ \\y=110-6\cdot 10=110-60=50

You might be interested in
What is 13 7/10 times 7
Anon25 [30]
I would say the answer is 95.9 not to sure but I’m pretty confident
5 0
3 years ago
Read 2 more answers
A company has actual unit demand for four consecutive years of 100, 105, 135, and 150. The respective forecasts were 120 for all
Lubov Fominskaja [6]

Answer:

c. 20

Step-by-step explanation:

Calculation to determine Which of the following is the resulting MAD value that can be computed from this data

Using this formula

MAD= [ABS( Year 1 actual unit demand - Forecast) + ABS (Year 2 actual unit demand - Forecast) + ABS (Year 3 actual unit demand - Forecast) + ABS (Year 4 actual unit demand - Forecast)]/ Number of years

Let plug in the formula

MAD = [ABS(100 - 120) + ABS (105 - 120) + ABS (135 - 120) + ABS (150 - 120)]/4

MAD =(ABS 20) + (ABS 15) + (ABS 15) + (ABS 30)/4

MAD= 80/4

MAD=20

Therefore the resulting MAD value that can be computed from this data is 20

8 0
3 years ago
WILL GIVE BRAINLIEST PLEASE HELP!!!
katovenus [111]
<span>
f(x)=2^(x-2) = 2^(-4) = 1/2^4  = 1/16

answer
</span><span>A.
f(x)=2^(x-2)</span>
8 0
3 years ago
I will give BRAINLIEST to whoever is correct.
attashe74 [19]
28/11.2 = 2.5

since they are similar and openly stated as parrallelograms, you know that they have a scale of the longest edge of EFGH to the longest edge of JKLM
5 0
3 years ago
Can some one help me pls ​
Vadim26 [7]
10/7

Because root of 100 is 10, root of 49 is 7
5 0
2 years ago
Read 2 more answers
Other questions:
  • Describe a way that someone could estimate the length of a book
    7·2 answers
  • Find the value of 21 + 4(3/\2 - 5). The two after the three is an exponent.
    5·2 answers
  • PLEASE ANSWER ASAP (10 Pts)
    8·2 answers
  • X to the power of 2+ 2X plus 3X to the power of 2+ 4X subtract 2X to the power of 2+ X
    6·1 answer
  • Help please help me with this. ​
    8·2 answers
  • Need help with 73, 74, 75, &amp; 76. Find the value of X.
    12·2 answers
  • Hey! im confused on this. ill give more points if you end up being correct :)
    9·1 answer
  • The committee spends $444 on costumes for 24 people. Each costume costs the same amount of money. How much did each costume cost
    11·1 answer
  • Consider the quadratic equation ax2 + bx +5 = 0, where a,b, and c are rational numbers and the quadratic has two disticnt zeros.
    15·1 answer
  • Indicate the equation of the line, in standard form, that is the perpendicular bisector of the segment with endpoints (4, 1) and
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!