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
harkovskaia [24]
3 years ago
8

A recipe calls for mixed nuts with 50% peanuts. 1/2 pound of 15% peanuts has already been used. How many pounds of 75% peanuts n

eeds to be added to obtain the 50% mix?
Mathematics
1 answer:
Galina-37 [17]3 years ago
6 0
Now you have
<u />
<u>(.15)0.5 lb peanuts</u>     =     <u>0.075 lb peanuts</u>
0.5 lb  nuts                              0.5 lb nuts

for every pound of 75% mixed nuts you add, you get .75 lb peanuts, how many pounds, x, do you need to add to get the ratio 50 to 100?

<u>0.075 lb peanuts + 0.75x lb peanuts</u><em>       =    <u /></em><u>   50   </u><u>
</u>0.5 lb nuts + x lb nuts                                      100

cross multiply

(0.075 + .75x) 100 = (0.5 + x) 50
7.5 + 75x = 25 + 50x
25x = 17.5
x = 0.7 lb of 75% peanuts

You might be interested in
Hi what is 2/5 times 6/8
guajiro [1.7K]

Answer:

12/40 (simplified = 3/10)

Step-by-step explanation:

2 x 6 = 12

5 x 8 = 40

5 0
2 years ago
Read 2 more answers
How do you do this please help me
aleksandr82 [10.1K]
Use PEMDAS

first 36-4 = 32
7^2 = 49
(32/16) - 49 is your answer -47
7 0
3 years ago
A line includes the points (-3, 8)and (-1, 2). What is its equation in slope- intercept form
Natasha_Volkova [10]
Solve for slope first:
m = \frac{y2 - y1}{x2 - x1}

m = \frac{2-8}{-1-(-3)} = -3

then solve for b in y = mx + b

8 = -3(-3) + b
b = -1

y = -3x - 1
5 0
3 years ago
I rent a gym for $200.00 for 30 students. A year later I rent the gym for $330 for 70 students.
Anna [14]

let X be number of students

and y be total cost

when 30 students (30,X)where at the gym it's costs 200 (y,200)

=that is (X,y)=(30,200)

when 70 students where at the gym

=(X,y)= (70,330)

now we find the slope

M=y2-y1/x2-x1

= 330-200/70-30

= 100/40

= 2.5=3

now

Y=Mx+b

Y=2x+b

we need to find the value of b

so,we substrate for X and Y

X=30,200

200=2(30)+b

re-arrange

B+60=200

B=200-60

=140

y=2x+140

For the other questions, I can look at the equation I got. The y-intercept (b value) is $200. That means that we are adding $200 on to the price all the time. That's the price for the empty bus. The 2x means to multiply the number of people by two and add this to the $120. So each person is $2.

hope it's helpful

and please I really need brainliest, thanks

7 0
2 years ago
andrea rents a bike for 8 hours and pays $42 for the rental tomorrow she wants the same bike but only needs it for 6 hours what
Annette [7]

Answer:

8x=42 where x is hourly cost

so x = 21/4

6*x = 63/2 $

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Just answer question, No need to explain. THANKS
    13·2 answers
  • 180-(3x-10) simplify this
    15·2 answers
  • Consider the following table of the ages of our first six presidents. Ages of the First 6 Presidents at Inauguration Washington
    14·1 answer
  • The sum of two number is 91. The smaller number is thirteen less than the large number. Find both numbers.
    12·1 answer
  • Jenna+has+five+less+stamps+than+horacio.+gary+has+half+the+number+that+horacio+had.+all+together+they+have+a+total+of+75+stamps
    11·1 answer
  • Ms. Cassidy plotted the point (2, 3) on Miguel’s graph of y &lt; 2x – 4. She instructed him to change one number or one symbol i
    7·2 answers
  • Y''+2y'+y=2e^(-t)<br> find the general solution of the giving nonhomogenous differential equation
    12·1 answer
  • After putting $5,500 as a down payment on a car, you pay $400 per month for 60 months to pay off your car. What was the total yo
    8·1 answer
  • ANSWER FAST PLZZZZZZZZZZZZZZZZZZ!!!!!!!!!!! Explain how to use estimation to help find the product of two decimals. Give an exam
    15·2 answers
  • F ( x ) = -x^3 + 3x^2 + 4x -5 x = -3<br> Answear ?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!