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3 years ago

4 1/2 cups of flour make 2 batches of cookies. How much flour per batch

Mathematics

2 answers:

Mrac [35]3 years ago

5 0

9/2*1/2=9/4=2 1/4

2 1/4 cups of flour per batch.

iVinArrow [24]3 years ago

4 0

4 1/2 cups ⇒ 2 batches

1 batch ⇒ How many cups?

4 1/2 = 9/2

Cross multiplying;

1 batch = 1 × 9/2 ÷ 2 = 9/4 cups

Simplifying your answer;

1 batch = 2 1/4 cups

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please help :{ brainliest if you can get it right and I need you to prove why your answer is correct, thanksss

beks73 [17]

Answer:

The Value of $a=\frac{15}{4}$ .

Step-by-step explanation:

We have Named the figure please find the attachment for your reference.

Given:

PR = y

QR = a

RS = b

PS = z

PQ = x

QS = 15

∠P = 90°

∠R = 90°

∠Q = 60°

∠S = 30°

We need to find the Value of 'a'.

Solution:

Now we know that:

In Δ PQS

∠P = 90°

∠S = 30°

Now we know that;

$sin\ \theta = \frac{opposite\ side}{Hypotenuse}$

$sin \ S= \frac{PQ}{QS}$

Substituting the given values we get;

$sin\ 30\°=\frac{x}{15}$

Now we know that;

$sin\ 30\° = \frac12$

So we can say that;

$\frac{1}{2}=\frac{x}{15}\\\\x=\frac{15}{2}$

Now In Triangle PQR.

∠R = 90°

∠Q = 60°

So we can say that;

$Cos \theta = \frac{adjacent \ Side}{Hypotenuse}\\$

$Cos\ Q = \frac{QR}{PQ}$

Substituting the given values we get;

$cos 60\°= \frac{a}{x}$

Now we know that;

$cos 60\°= \frac12$

$x=\frac{15}{2}$

So substituting the values we get;

$\frac{1}{2}=\frac{a}{\frac{15}{2}}$

By Using Cross Multiplication we get;

$a= \frac{1}{2}\times\frac{15}{2}\\\\a=\frac{15}{4}$

Hence The Value of $a=\frac{15}{4}$ .

6 0

3 years ago

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Varvara68 [4.7K]

Answer:

she did not get at least 2100 and definitely not 85% of the worth

Step-by-step explanation:

3000*0.85=2550

3000*0.7=2100

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jasenka [17]

Answer:

x = 3.464

Step-by-step explanation:

7x^2 - 84 = 0

7x^2 = 84

x^2 = 12

x= 3.464

8 0

3 years ago

Factor −13 out of −13x−8.

Citrus2011 [14]

Answer:

i believe its x+5

Step-by-step explanation:

you add 13 to both numbers

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how do you select a month of the year at random what is the probability that the month ends with the ER

wel

Answer:

4/12 or 1/3

Step-by-step explanation:

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3 years ago

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