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3 years ago

Jack's pancake recipe calls for 2 tsp baking powder and 3 c of flour.

Mathematics

2 answers:

Bumek [7]3 years ago

7 0

Answer:

6 tsp baking powder is needed if Jack uses 9 c of flour.

Step-by-step explanation:

Given : Jack's pancake recipe calls for 2 tsp baking powder and 3 c of flour.

To find : How much baking powder is needed if Jack uses 9 c of flour.

Solution :

For 3 c of flour baking powder needed = 2 tsp

For 1 c of flour baking powder needed = $\frac{2}{3}$ tsp

Now, we have to find the amount of baking powder needed in 9 c flour.

For 9 c of flour baking powder needed = $\frac{2}{3}\times 9$ tsp

= 6 tsp

Therefore, 6 tsp baking powder is needed if Jack uses 9 c of flour.

mart [117]3 years ago

5 0

6 tps baking powder. For every 3, there is two. 3 multiplied by 2 is 6.

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Send help please!! i want to complete it asap

Nadusha1986 [10]

It’s a little complicated but here’s how it works:
Imagine a table with the intervals
0:4 , 4:6 , 6:7 , 7:10 , 10:13 (10 year intervals)
Then we have different rows
Class width: 4 , 2 , 1 , 3 , 3
Freq density: 0.2 , 0.5 , 1.2 , 0.7 , 0.3
So now calculate frequency where freq = class width * density
Freq: 0.8 , 1 , 3.6 , 2.1 , 0.9
So to find median find cumulative frequency
(Add all freq)
Cfreq = 8.4 now divide by 2 = 4.2
So find the interval where 4.2 lies.
0.8 + 1 = 1.8 + 3.6 = 5.6

So 4.2 (median) will lie in that interval 60-70 years.

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3 years ago

Name the sampling method used in each of the following situations:

elixir [45]

Answer:

a) Convenient

b) Cluster

c) Stratified

d) Systematic

e) Random

Step-by-step explanation:

Samples may be classified as:

Convenient: Sample drawn from a conveniently available pool.

Random: Basically, put all the options into a hat and drawn some of them.

Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.

Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.

Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.

Situation a:

Asks all from a single group(sitting passengers), that is, convenint sample.

Situation b:

First she separates the students by row, then from each row, she chooses all students. So this is Cluster sampling.

Situation c:

The manager separates the stores by location, and then in each location, random customers are chosen. This is an example of Stratified sampling.

Situation d:

Marks for every fourth patron, that is, every 4th element. So Systematic sampling.

Situation e:

People chosen at random, so Random sampling.

6 0

3 years ago

2.1 x 10^5 +4.3 x 10^4

Alla [95]

Answer:

253,000

Step-by-step explanation:

$10^{5} = 100000$
$10^{4} = 10000$
Plug the above answers in: 2.1 × 100,000 + 4.3 × 10,000
2.1 × 100,000 = 210,000
Plug 210,000 in: 210,000 + 4.3 × 10,000
4.3 × 10,000 = 43,000
Plug 43,000 in: 210,000 + 43,000
210,000 + 43,000 = 253,000

I hope this helps!

4 0

3 years ago

The quotient when sarah divided a number by 5 was 247 with a remainder. what is one possible dividend and explain how you find i

kirill [66]

One possible divided is the number 1236.

If 5 went into 1235 the quotient would be exactly 247. However, there needs to be a remainder. So let's just change the number to 1236. Then, there will be a remainder of 1.

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3 years ago

How do the 2s in 12.5 and 0.912 compare?

user100 [1]

Answer:

i dont know

Step-by-step explanation:

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3 years ago