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djverab [1.8K]
3 years ago
12

Please help it is easy math that I forgot how to do

Mathematics
1 answer:
Andreas93 [3]3 years ago
3 0

Answer:

21

Step-by-step explanation:

thats it 21

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A glass is 4/7 full. Then 70 cm³ orange juice is poured in. The glass is now 3/4 full.
Nataly_w [17]

Answer:

The volume of the glass is 217.8 cm³

Step-by-step explanation:

If the glass were initially 4/7 full, that means 3/7 of the volume is still available to hold more juice.

Let v represent the volume of the glass.  

Then (3/7)v + 70 cm³ = (3/4)v.

We need to solve this for v.

Here the LCD is 28.  Thus,

(3/7)v + 70 cm³ = (3/4)v →  (12/28)v + 70 cm³ = (21/28)v.

Subtracting  (12/28)v from both sides, we get:

70 cm³ = (9/28)v.

We can isolate v by mult. both sides by the inverse of 9/28, which is 28/9:

(28/9)(70 cm³) = v

The volume of the glass is 217.8 cm³

3 0
3 years ago
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Kevin makes an initial deposit into a saving account with an unnual interest rate. the amount of money in kevin's saving account
dalvyx [7]
It represents the annual interest rate.
5 0
3 years ago
Anyone can answer this
kolezko [41]

Answer:

y smaller than - 1/3

Step-by-step explanation:

.................

5 0
3 years ago
Hey can you please help me posted picture of question
ElenaW [278]
A is your answer my friend
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3 years ago
which of the following statistical techniques can the psychologist use to determine the developmental score of a typical 4 year
anzhelika [568]

Your question is incomplete, as you have not listed the following statistical techniques.

But I wish to help you, with the correct answer, that is likely one of the option.

ANSWER : INFERENTIAL STATISTICS

Step-by-step explanation: Inferential statistics is a statistical inference, where conclusion is drawn using a set of data that are not gotten from the sample study, but are assumed to relate with the sample study. This type of statistics relies on a probability, that the assumed data used to analyze a sample can be used to study the properties of that sample.

Therefore, for a psychologist to determine the developmental score of a four year old child, without the child participating in the study, the psychologist is most likely to use the scores of other who as participated in the study, to infer as the same with the score of a four year old child.

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3 years ago
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