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
Feliz [49]
3 years ago
7

A chemical company makes two brands of antifreeze. The first brand is 40% pure antifreeze, and the second brand is 60% pure anti

freeze. In order to obtain 180 gallons of a mixture that contains 55% pure antifreeze, how many gallons of each brand of antifreeze must be used?
First brand =
Second Brand=
Mathematics
1 answer:
Semenov [28]3 years ago
4 0

Answer:

Step-by-step explanation:

Let x be the portion of 60%

180 - x is the portion of 40%

0.60x + 0.40(180 - x) = 0.55(180)

0.60x + 72 - 0.40x = 99

0.20x = 27

x = 135

180 - 135 = 45

First brand = 45 gallons of 40%

Second Brand = 135 gallons of 60%

You might be interested in
IS MY ANSWER CORRECT?IF IT SNOT THAN GIVE ME THE RIGTH ANSWER ILL ONLY GIVE BRAINLIEST IF YOU GET IT CORRECT
Inga [223]

Answer:

its c 21,14 because if u expand the cahart then those two numbers will be a pair

5 0
3 years ago
Read 2 more answers
Explain how you know that7/13 is greater than one third but is less than two thirds
andrew-mc [135]
7/12 is greater than 1/3 but less than 2/3.
<span>in order to find if this is true, you need to find the common denominator which is 12. in order for 1/3 to have a denominator of 12, you need to multiply by 4. but we all know the rule. whatever we do to the bottom needs to be done to the top, so 1/3 is = 4/12. 7/12 is greater than 4/12. we do the same to 2/3 and multiply the denominator by 4 and the numerator by 4 as well, and the result would be 8/12. if we compare, 7/12 is less than 8/12.</span>
6 0
3 years ago
Please help 8th grade math
Zepler [3.9K]

Answer:

1500 calories

Step-by-step explanation:

2400 is 100% of in this case, 8/8

So then we know that 1/8 of 2400 is 300 because we just divide it by 8. Sarah eats 5/8 that much so we multiply 300 by 5 which gives us 1500

6 0
2 years ago
Read 2 more answers
Convert 50 kilogram to pounds. (The conversion factor from kilogram to pound is 2.2046.) A. 52.2 lb. B. 110.2 lb. C. 22.6 lb. D.
ss7ja [257]

Answer: (B) = 110.2

50*2.2046 = 110.23

5 0
3 years ago
From the top of a cliff, which is 120 meters above the water, tha angle of depression of a boat on the water is 18°. How far is
harina [27]
To find how far the boat is from the bottom of the cliff is you’ll use tan;

Tan18degrees=120/x

x=120/tan18degrees

x=369m
4 0
3 years ago
Other questions:
  • Add and simplify 5/12 + 7/24
    6·1 answer
  • during one week the stock market did the following. Monday 18 points, Tuesday rose 31 points , Wednesday dropped 5 points, Thurs
    15·1 answer
  • Explain please I'm confused
    11·1 answer
  • PLEASE HELP, NEEDS TO BE COMPLETED TODAY!
    8·1 answer
  • Multiply the fractions 9 over 7 × 63 over 81
    13·1 answer
  • If you flip a coin 50 times, how many times would you expect it to land on heads
    11·2 answers
  • A jar has one red, one orange, one yellow, one green, one blue, and one purple marble in it. Wha
    11·1 answer
  • Solve the system of equations -x+y=15−x+y=15 and -5x-3y=27−5x−3y=27 by combining the equations
    12·1 answer
  • A bookstore wants to determine how many books the people in the surrounding neighborhood read per month on average. they survey
    11·1 answer
  • Type a digit that makes this statement true.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!