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
Roman55 [17]
1 year ago
10

please solve all of them Elaine bought a total of 15 shirts and pairs of pants She bought 7 more shirts then pants how many of e

ach did she buy?Together Preston and shady Have 49 video games, shady has 11 more games than Preston. How many does each person have?The cost of 8 muffins in 2 quarts of milk is $18. The cost of 3 muffins and 1 quart of milk is 7.50. How much does 1 buffet in 1 quart of milk cost?
Mathematics
1 answer:
mihalych1998 [28]1 year ago
3 0

Answer

Question 1

4 pants

11 shirts

Question 2

Shady has 30 video games.

Preston has 19 video games.

Question 3

1 muffin costs $1.5

1 quart of milk costs $3

Explanation

Question 1

Let the number of shirts be s

Let the number of pants be p

She bought a total of 15 shirts and shirts

s + p = 15

She bought 7 more shirts than pants.

s = 7 + p

So, we can solve the simultaneous equation.

s + p = 15

s = 7 + p

Substitute for s in equation 1

s + p = 15

7 + p + p = 15

7 + 2p = 15

2p = 15 - 7

2p = 8

Divide both sides by 2

(2p/2) = (8/2)

p = 4 pants

s = 7 + p = 7 + 4 = 11 shirts

Question 2

Let the number of games Shady has be s

Let the number of games Preston has be p

Together, they have a total of 49 video games

s + p = 49

Shady has 11 more games than Preston.

s = 11 + p

So, we can solve the simultaneous equation.

s + p = 49

s = 11 + p

Substitute for s in equation 1

s + p = 49

11 + p + p = 49

11 + 2p = 49

2p = 49 - 11

2p = 38

Divide both sides by 2

(2p/2) = (38/2)

p = 19 video games

s = 11 + p = 11 + 19 = 30 video games

Question 3

Let the cost of a muffin be m

Let the cost of a quart of milk be q

The cost of 8 muffins and 2 quarts of milk is $18.

8m + 2q = 18

The cost of 3 muffins and 1 quart of milk is $7.50

3m + q = 7.5

So, we can solve the simultaneous equation

8m + 2q = 18

3m + q = 7.5

Solving this,

m = 1.5 dollars

q = 3 dollars

Hope this Helps!!!

You might be interested in
Which statement is always true?
Juliette [100K]
3, because a negative number multiplied by another negative number (in this case, itself) will always be a positive number.
7 0
3 years ago
Read 2 more answers
Solve for the value of X squared.
slega [8]

Step-by-step explanation:

x² + y² = 153 and y = -4x.

=> x² + (-4x)² = 153

=> x² + 16x² = 153

=> 17x² = 153

=> x² = 9.

8 0
2 years ago
Read 2 more answers
Why a golf ball is heavier than a table-tennis ball
Alex787 [66]
The balls have the same mass but the table-twnnis ball is much less dense then the golf ball.
7 0
2 years ago
Read 2 more answers
Help please with the question
zloy xaker [14]

Answer:

123

Step-by-step explanation:

3 0
2 years ago
Which is equation in point slope form for the given point and slope. Point5,9 slope2
Sedbober [7]

Answer: y - 9 = 2(x - 5)

Step-by-step explanation:

Point slope form: y - y1 = m(x - x1)

substitute 5 for x1 and 9 for y1 and 2 for m

x1 = 5

y1 = 9

m = 2

you get y - 9 = 2(x - 5)

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the surface area of storage box measures 15 cm xby12 cm by 10 cm?
    6·1 answer
  • a principal orders 8 sub sandwiches for a teachers meeting. she cuts the subs into thirds and puts the mimi sub onto a tray how
    13·2 answers
  • Select the correct text in the Box??​
    6·1 answer
  • HELP ME ASAP a is the blue line. B is the purple line. C is the orange line. And D is the green line
    8·2 answers
  • Find the value of x in the isosceles triangle shown below.
    15·2 answers
  • can someone please help me?
    10·1 answer
  • 1. Solve the system of equations.<br> 2y - 3z=0<br> x+3y = -4<br> 3x + 4y = 3
    10·1 answer
  • ILL GIVE BRAINLIEST PLEASE HELP WITH THESE ALGEBRA QUESTIONS show work pls
    13·1 answer
  • HELLLLPPPP PLEASE THIS IS DUE TONIGHT PLEASE EXPLAIN YOUR THINKING
    6·1 answer
  • If a= 2^x and b =2^x+1; show that: 8a^3 / b^3 = 2^x+1​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!