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
lesya [120]
3 years ago
12

A dairy needs 357 gallons of milk containing 5% butterfat. How many gallons each of milk containing 7% butterfat and milk contai

ning 1% butterfat must be used to obtain the desired 357 gallons?
Mathematics
1 answer:
IrinaVladis [17]3 years ago
6 0

9514 1404 393

Answer:

  • 238 gallons 7%
  • 119 gallons 1%

Step-by-step explanation:

Let h represent the number of gallons of high butterfat content milk. Then 357-h will be the number of gallons of 1% milk. The total amount of butterfat in the mix is ...

  0.07h +0.01(357 -h) = 0.05(357)

  0.06h = 14.28 . . . . . . . . . . subtract 3.57, collect terms

  h = 238 . . . . . . . . . .  divide by 0.06

  357-h = 357 -238 = 119

238 gallons of 7% and 119 gallons of 1% are needed.

You might be interested in
Sixty-three is 60% of____________
ArbitrLikvidat [17]
To know how to do this set up the question:

63/x = 60/100
63*100=60x
6300/60=x
x=105
3 0
3 years ago
Find the difference 9x2-24x2
vovikov84 [41]
So, I'm assuming that the x represents multiplication...
Because multiplication has a higher precedence over addition, we'll multiply the numbers first:
18 + 48
Then we simply add:
66
6 0
3 years ago
Read 2 more answers
Help asap pls and thx
vazorg [7]

Step-by-step explanation:

from what I can see there are 2 options to make the 2 triangles congruent :

either the opposite sides must be equal or the neighboring sides must be equal.

so, either

5x = 3x + 10

and

5x - 2 = 4x + 3

or

5x = 4x + 3

and

5x - 2 = 3x + 10

for the first

5x = 3x + 10

2x = 10

x = 5

control

5x - 2 = 4w + 3

5×5 - 2 = 4×5 + 3

23 = 23

correct.

for the second

5x = 4x + 3

x = 3

control

5×3 - 2 = 3×3 + 10

15 - 2 = 9 + 10

13 = 19

no, not a valid solution.

so, x = 5

5 0
2 years ago
Select the point that is a solution to the system of inequalities​
ExtremeBDS [4]
<h3>Answer: B.  (-1, 0)</h3>

This point is below both the red diagonal line and the blue parabola. We know that the set of solution points is below both due to the "less than" parts of each inequality sign.  

In contrast, a point like (2,2) is above the parabola which is why it is not a solution. It does not make the inequality y \le x^2-3x true. So this is why we can rule choice A out.

Choice C is not a solution because (4,1) does not make y \le -x+3 true. This point is not below the red diagonal line. We can cross choice C off the list.

Choice D is similar to choice A, which is why we can rule it out as well.

5 0
3 years ago
Set 2 Maths has 30 pupils in it.
Ierofanga [76]
80/100 x 30 = 24 because you just multiply percents
4 0
3 years ago
Other questions:
  • Ben spent of an hour cleaning his room. His sister spent 3 times as many hours cleaning her room. How many hours did Ben and his
    5·2 answers
  • This is 5th grade math [ 1,225 - ( 568 - 203 )] × 10 [ 1,225 - ______ ] × 10 ________ × 10 ____
    13·1 answer
  • -5 x + 10 equals 55 what is X ​
    7·2 answers
  • Last Saturday, there were 1,486 people at the Cineplex. There were about the same number of people in each of the 6 theaters. Be
    8·1 answer
  • How to write 899,501 in expanded form
    13·2 answers
  • Round to the nearest tenth (1 decimal place)
    8·1 answer
  • Help me this is due this period please please ill mark brainiest with a bunch of points.
    15·2 answers
  • PLEASE HELP AND DO NOT SEND A LINK IF YOU DO YOU WILL BE REPORTED
    7·2 answers
  • What is the area of this figure? ​
    8·1 answer
  • Brissa's desk is 3 feet long. About how long is it in meters? use 1 foot = 0.305 meter
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!