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
Umnica [9.8K]
3 years ago
13

How much 75 octane gas and 90 octane gas should be blended to make 15 gallons of 88 octane gas

Mathematics
1 answer:
Lisa [10]3 years ago
3 0
75x + 90(15-x)=88(15)

75x+1350-90x = 1320

-15x + 1350 = 1320

-15x= -30

x=2

the amount of 75 octane is 2 gallons
the amount of 90 octane is 13 gallons

Hope this helps.
You might be interested in
The national mall is approximately 6,400,000 ft.². If an event organizer estimate the density at 4 ft.² per person, approximatel
Naddika [18.5K]

Answer:

1,600,000

Step-by-step explanation:

divide 6,400,000 by feet per person

3 0
3 years ago
If a taxpayer has an adjusted gross income (AGI) of $27.000, donates $3500
mart [117]

Answer:

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
PLEASE HELP ME I WILL GIVE BRAINLIEST TO EVERY SINGLE ANSWER
zepelin [54]

Answer: I believe the answer you are looking for is 33 inches of rain.

Step-by-step explanation:

First you will divide 31 days by 14 days as 2 weeks is 14 days. Which will give you 2.2..... Now multiply your crazy decimal by 15 to get 33.214.... Now round that decimal to 33. There's your answer.

6 0
3 years ago
Read 2 more answers
last year Rafael opened an investment was count with $5,500 at the end of the year the amount in the account has been decreased
Vlad1618 [11]

Answer: The new amount is 0.78*5500. Which is 4290. The decrease is 5500-4290=1210.

5 0
3 years ago
Help!! For first and second please
jenyasd209 [6]

Answer:

it goes al the way up to 15 and it stops at 5 and the 8 makes the green house

5 0
2 years ago
Other questions:
  • Josie has 47$ left on her checking account if she writes a check for 55$ what will josies balance be
    5·1 answer
  • -7 times what equals 2? i’ll give brainliest
    14·1 answer
  • Biologists tagged 196 fish in a lake on January 1. On February​ 1, they returned and collected a random sample of 42 ​fish, 14 o
    6·1 answer
  • Which situation is represented by the inequality? 3x + 5 > 2x + 15
    12·1 answer
  • ?? I'm stuck and I have no idea where to go from here
    12·1 answer
  • Yesterdays low temperature was -2.5°C today low temperature is five times as lone as yesterday’s low temperature
    8·1 answer
  • 72:64=9:_ What is the answer
    13·1 answer
  • Last month, Carla's neighbors paid her to take care of their cat when they went on
    11·2 answers
  • Find the Retail Price. Given: Original Price: $60; Markup: 18%
    8·2 answers
  • show me how to work this problem, point A(7,9)is dilated from the origin by scale factor r was= 6. what are the coordinates of p
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!