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
OleMash [197]
3 years ago
10

Sam makes bread rolls he gets 2/5 of the bread rolls to his neighbor and 4/9 the remainder to his cousin he has 15 bread left ho

w many bread rolls does Sam make
Mathematics
2 answers:
Bad White [126]3 years ago
4 0

Answer:Sam made 45 bread rolls.

Step-by-step explanation:

Let x represent the number of bread rolls that Sam made.

Sam makes bread rolls he gives 2/5 of the bread rolls to his neighbor. This means that the number of bread rolls that Sam gave to his neighbor is

2/5 × x = 2x/5

The remainder would be

x - 2x/5 = 3x/5

He gave 4/9 the remainder to his cousin. This means the number of bread rolls that he gave to his brother is

4/9 × 3x/5 = 4x/15

The number of bread rolls that he has left is

3x/5 - 4x/15 = 5x/15 = x/3

If he has 15 bread left, it means thagv

x/3 = 15

x = 45

Kitty [74]3 years ago
3 0

Answer:

  Sam made 45 rolls

Step-by-step explanation:

After giving some to his neighbor, Sam has 1 -2/5 = 3/5 of the original quantity left. After giving some to his cousin, he has (3/5)(1 -4/9) = (3/5)(5/9) of the original quantity left.

  (3/5)(5/9) = 3/9 = 1/3

  15 rolls = (1/3)·(original number) . . . . . . Sam has 15 roll left

  45 rolls = original number . . . . . . . . . . . multiply by 3

_____

<em>Check</em>

Same gave 2/5·45 = 18 rolls to his neigbor, so had 27 left. Sam gave 4/9·27 = 12 to his cousin, so had 15 left.

You might be interested in
Find the quadratic function f (x )equals ax squared plus bx plus c for which f (1 )equals negative 2​, f (negative 3 )equals 26​
BaLLatris [955]

Answer:

f(x) =4x² + x - 7

Step-by-step explanation:

f(x) = ax² + bx + c

f(1) = a + b + c

f(-3) = 9a - 3b + c

f(3) = 9a + 3b + c

a + b + c = -2 -----(1)

c = -2-a-b -----(2)

9a - 3b + c = 26 ------(3)

9a + 3b + c = 32 -------(4)

(2)->(3)

9a-3b-2-a-b = 26

8a-4b = 28

4(2a-b) = 28

2a-b = 7 ----(5)

(2)->(4)

9a+3b-2-a-b = 32

8a+2b = 34

2(4a+b) = 34

4a+b = 17 ----(6)

(5)+(6)

6a = 24

a = 4

sub a=4 into(6)

4(4)+b = 17

b = 1

sub a=4,b=1 into (2)

c = -2-4-1

c = -7

5 0
3 years ago
A class has 12 males and 15 females. There's 7 males and 9 females in class who plays tennis. If a student is chosen from the cl
Vsevolod [243]
First, let's make a two-way table using a matrix:

\left[\begin{array}{cccc}&Tennis&No&Total\\Male&7&5&12\\Female&9&6&15\\Total&16&11&27\end{array}\right]

A. \frac{6}{27}\\\frac{2}{9}

B. \frac{7}{27}
4 0
3 years ago
I. NEED. HELP! PLEASE!
mamaluj [8]

Answer:

x = 2.5

Step-by-step explanation:

We know the adjacent and the opposite sides to the angle in a right triangle

tan theta = opp / adj

tan 26 = 1.2 /x

x tan 26 = 1.2

x = 1.2 / tan 26

x =2.46036461

Rounding to the nearest tenth

x = 2.5

5 0
3 years ago
Read 2 more answers
234 is 30% of what number?
saul85 [17]
234 is 30% of 780.

 I believe
6 0
4 years ago
What is the vertex of y=-(x-5)^2?
natta225 [31]

Answer:

vertex:

x= 5

y= 0

coordinates: (5,0)

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Jerry ran 3/7 of a mile in 3/11 of an hour. What was Jerrys rate of speed?
    6·1 answer
  • What is the y-intercept of the graph of the quadratic function
    13·1 answer
  • Earthquakes release seismic waves that occur in concentric circles from the epicenter of the earthquake. Suppose a seismograph s
    10·1 answer
  • What is the value for "x"?
    15·2 answers
  • Find the midpoint coordinate for the endpoints 2 and 10
    10·2 answers
  • What is static equilibrium?
    7·2 answers
  • Explain why the amount of money in the account at the end of t years is given by the formula:
    10·1 answer
  • A recipe says it takes 2&amp;1/2 cups of flour to make a batch of cookies. How many cups of flour are needed to make 3&amp;3/4 b
    15·1 answer
  • Question 5: A car travel a distance of 330km at an average speed of to
    5·1 answer
  • 2. The population of prairie dogs living in a nearby field has
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!