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
77julia77 [94]
3 years ago
11

I JUST WANNA PASS MY SOPHOMORE YEAR BUT I SUCK AT MATH!!!!! PLEASE HELP!!!!!!

Mathematics
1 answer:
Natasha2012 [34]3 years ago
3 0

Mr. Sanchez's class: 1.65p

Mr. Kelly's class: 1.36j

where p = fruit pies and j = fruit juice

____________________________________________________________

(a) Creating a system of equations

p + j = 79

1.65p + 1.36j = 118.17

are your system of equations

____________________________________________________________

(a) Solving the system of equations for p and j

Solve for p in the first equation. Subtract j from both sides.

p = 79 - j

____________________________________________________________

Plug p into the second equation.

1.65(79 - j) + 1.36j = 118.17

Distribute 1.65 inside the parentheses.

130.35 - 1.65j + 1.36j = 118.17

Combine like terms.

130.35 - 0.29j = 118.17

Subtract 130.35 from both sides.

-0.29j = -12.18

Divide both sides by -0.29.

j = 42

____________________________________________________________

Plug j into the first equation.

p + (42) = 79

Subtract 42 from both sides.

p = 37

____________________________________________________________

(b) To find out how much each class earned

Now plug in p and j into Mr. Sanchez's class and Mr. Kelly's class equations (at the top).

Mr. Sanchez's class: 1.65(37) = 61.05

Mr. Kelly's class: 1.36(42) = 57.12

____________________________________________________________

(c) To see how much more Mr. S's class earned

Subtract 57.12 from 61.05.

61.05 - 57.12 = 3.93

____________________________________________________________

(a)

p + j = 79

1.65p + 1.36j = 118.17

(b)

Mr. Sanchez's class earned more money (61.05 > 57.12).

(c)

Mr. Sanchez's class earned $3.93 more than Mr. Kelly's class.

You might be interested in
Find the solution to the following system using substitution. y = - 4 + 9 y = 3x - 5
lbvjy [14]

Answer:

1/2, 11/6

Step-by-step explanation:

y=-4+9y

9y-y=4

8y=4

y=1/2

3x-5=1/2

3x=5+1/2=11/2

x=11/6

6 0
2 years ago
Which of the following is a multiple of 2?
docker41 [41]
The answer is a because if you divide 1000 by 2 you get 500 and the other ones you get a decimal.

6 0
3 years ago
Solve the following equation.<br> x^2 + 6x − 40 = 0
jonny [76]

Answer:

x = 4 and -10

Step-by-step explanation:

Given the equation

x²+6x-40= 0

The common factors to use for the factorisation are +10 and -4

x²+(10x-4x)-40=0

(x²+10x)-(4x-40) = 0

x(x+10)-4(x+10) = 0

(x-4)(x+10) = 0

x-4 =0 and x+10 = 0

x = 4 and x = -10

8 0
3 years ago
Claudia claims that there is one operation in the algebraic equation above. Joanna claims that there are two. Who is correct? Ex
aliina [53]

Answer:

There are only 4 operations. Joanna is incorrect and Claudia is correct.

Hope this helps :)

-jp524

4 0
2 years ago
Read 2 more answers
(10-1)(10-2)(10-3)(10-10)
Goryan [66]

Answer:

0

Step-by-step explanation:

(10-1=9)(10-2=8)(10-3=7)(10-10=0)

9*8*7*0=0

6 0
3 years ago
Other questions:
  • The volume of box A is 2/5 the volume of box b. What is the height of box A if it has a base area 32 square centimeters​
    11·1 answer
  • Working together, Jimmy and Adam can sweep a porch in 4.44 minutes. Had he done it alone it would have taken Adam eight minutes.
    5·1 answer
  • A coffee machine can be adjusted to deliver any fixed number of ounces of coffee. if the machine has a standard deviation in del
    12·1 answer
  • What is the equation of a line that passes through (.5,4.25) and (2,18.5) and has a y-intercept of -.5
    14·1 answer
  • Is 6/6 more than 3/3
    9·1 answer
  • If you put the Pi key into the calculator instead of 3.14 will you get a different answer or the same answer you get using eithe
    15·1 answer
  • What value is in the middle of 10 and 11
    13·2 answers
  • 4x^2 + 7x - 2 = 0 all the steps using quadratic formula ​
    15·1 answer
  • Three angles are in the ratio 2 : 3 : 5 The smallest angle is 50 degrees Work out the sizes of the other two angles
    8·1 answer
  • Factor the expression completely.<br> 40x^2+70<br> 40x <br> 2<br> +70
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!