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
topjm [15]
2 years ago
6

A recipe calls for 3 cups of flour to make 2 batches of dinner rolls. One batch makes 15 rolls. Laura is making dinner for 12 pe

ople and only needs one roll per person.
What proportion will help Laura find how much flour is needed to make 12 dinner rolls?
A. 3/30 = x/12
B. 3/2 = x/12
C. 3/15 = x/12
D. 12/15 = x/3
Mathematics
2 answers:
sveticcg [70]2 years ago
6 0
A. 3/30=x/12
Or B 3/2 = x/12
Maru [420]2 years ago
4 0

Answer:

A

Step-by-step explanation:

3 cups of flour produces 2 batches of dinner rolls. So, if one batch makes 15 rolls, then 2 batches makes 30 rolls. Therefore, 3 cups of flour produces 30 rolls.

Laura wants to find how much flour she needs to make 12 rolls.

Here's the setup:

Let x be the number of cups of flour needed. Then,

(3 cups of flour)/(30 rolls)=(x cups of flour)/(12 rolls)

This is the set up for all equations involving ratios. The units should be consistent. Notice how I have flour/rolls=flour/rolls.

It is not necessary to solve the equation, but you should to make sure your answer makes sense. By cross-multiplying, we get x=(3*12)/30 or 1.2 cups.

This solution makes sense. Because 3 cups of flour produces 30 rolls, one cup produces 10 rolls. We need slightly more than 1 cup to get 12 rolls.

You might be interested in
I REALLY NEED HELP I FORGOT HOW TO DO THIS :(
Elena-2011 [213]

Answer:

117.8

Step-by-step explanation:

i used heron's formula

√s(s-a)(s-b)(s-c)

s= (20+16+33)/2 = 34.5

√34.5(34.5-20)(34.5-16)(34.5-33)

= 117.8

3 0
2 years ago
Find the value of x.
Sergeu [11.5K]

\blue{\huge{\red{\boxed{\green{\mathfrak{QUESTION}}}}}}

Find the value of x.

\orange{\underline{\huge{\bold{\textit{\green{\bf{FORMULA}}}}}}}

SUM OF ANGLES ON STRAIGHT LINE = 180°

\huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}

ANGLES\: R :-( x - 10)°,(3x + 25)°,(x + 5)°, \\  \\ ( x - 10)° + (3x + 25)° + (x + 5)° = 180 \\ 5x + 20 = 180 \\ 5x = 160 \\ x =  \frac{160}{5}  \\ x = 32° \\

\red{ANGLES R :-} \\  \pink{( x - 10)° = 32 - 10 = 22°} \\ \blue{ (3x + 25)°  = 32 \times 3 + 25 = 96 + 25 = 121°}\\  \orange{(x + 5)° = 32 + 5 = 37°}

3 0
3 years ago
Read 2 more answers
How do you solve this?
BARSIC [14]
7x+2=5(x-2)
7x+2=5x-10
7x-5x=-10-2
2x=-12
x=-6




Regards M.Y.
6 0
3 years ago
What is 1/6+7/10 as a equivalent fraction
nekit [7.7K]

Answer: 13/15

Step-by-step explanation:

8 0
3 years ago
The cities Cleveland, Ohio; Erie, Pennsylvania; and Rochester, New York, in respective order, lie approximately in a straight li
Ann [662]

Answer:

  Erie to Rochester is 145 miles

Step-by-step explanation:

If we designate the points of interest as C, E, and R, we are told that ...

  CE + ER = CR . . . . . the various distances are segments of a straight line

For CE = 94 and CR = 239, we can fill in the given information and solve for ER.

  94 + ER = 239

  ER = 239 -94 . . . . . . subtract 94 from both sides of the equation

  ER = 145

The distance from Erie to Rochester is 145 miles.

7 0
3 years ago
Other questions:
  • Simplify the square root of -16 + the square root of -9
    9·1 answer
  • Questions:
    15·1 answer
  • 2 (x + 8) > 18 + x -4 need this really soon
    12·2 answers
  • Which set of sides will make a triangle
    9·1 answer
  • Does anyone know how to do this?
    11·1 answer
  • What happens if I have $84 in 1/4 is taken away how manny do I have left
    14·1 answer
  • 10 is 40 percent of what number?
    14·1 answer
  • Solve for x solve for x solve for x
    8·2 answers
  • A box covers an area of 612
    9·1 answer
  • Please answer this ty
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!