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2 years ago

If Adrianna can read 7 pages in 10 minutes. At this rate, how many page can she read in 25 minutes?

Mathematics

2 answers:

fenix001 [56]2 years ago

8 0

Answer:

17.5 pages in 25 minutes

Step-by-step explanation:

10=7

10+10=20

20=14

5=3.5 (half of 7)

total of 17.5 pages

lesya692 [45]2 years ago

4 0

3.5 : 5

7 : 10

14 : 20

17.5 : 25

At that rate, she can read 17.5 pages in 25 minuets.

Divide both 7 and 10 by 2, which gets 3.5 and 5

5 * 5 = 25

5 * 3.5 = 17.5

Therefore, in 25 minuets, she can read 17.5 pages.

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Find the unit rate 6 and 2/5 revolutions in 2 and 2/3 in seconds

Makovka662 [10]

Step 1

Convert mixed fractions into fractions

6 2/5 = (6*5)+2) / 5 = 32/5

2 2/3 = (2*3)+2) / 3 = 8/3

Step 2

32/5 ÷ 8 / 3 ; where 32/5 is the 1st fraction and 8/3 is the 2nd fraction

Step 2 (A)

Get the reciprocal of the 2nd fraction:

From 8/3 to 3/8

Step 2 (B)

Multiply 1st fraction to the reciprocal of the 2nd fraction

32/5 * 3/8 = (32*3) / (5*8) = 96/40

Step 2 (C)

Simplify the fraction

96/40 divide by 4 will become 24/10

24/10 divide 2 will become 12/5. The simplest fraction of 96/40

The unit rate is 12/5 = 2 2/5 revolutions per second

3 0

2 years ago

The table shows a company’s profit based on the number of pounds of food produced.

Bingel [31]

Answer:

$5,300

Step-by-step explanation:

Formulae used,

$a=\dfrac{(\sum x^2y\sum xx)-(\sum xy\sum xx^2)}{(\sum xx\sum x^2x^2)-({\sum xx^2)}^2}$

$b=\dfrac{(\sum xy\sum x^2x^2)-(\sum x^2y\sum xx^2)}{(\sum xx\sum x^2x^2)-({\sum xx^2)}^2}$

$c=\dfrac{\sum y}{n}-b\frac{\sum x}{n}-a\frac{\sum x^2}{n}$

Where,

$\sum xx=\sum x^2-\dfrac{(\sum x)^2}{n}$

$\sum xy=\sum xy-\dfrac{\sum x\sum y}{n}$

$\sum xx^2=\sum x^3-\dfrac{\sum x\sum x^2}{n}$

$\sum x^2y=\sum x^2y-\dfrac{\sum x^2\sum y}{n}$

$\sum x^2x^2=\sum x^4-\dfrac{(\sum x^2)^2}{n}$

Putting the values from the table, we get the best fit line as,

$y= -0.0817x^2 + 102.24x - 20421$

As we want to calculate the profit at 350 pounds, so putting x=350, we get

$y= -0.0817(350)^2 + 102.24(350) - 20421=\$5354.75$

5 0

3 years ago

Read 2 more answers

LCM of

Soloha48 [4]

This looks confusing as if it were content from another external generator. Can you try reposting this? I apologise.

5 0

2 years ago

Find the distance between the points X and Y shown in the figure.

tensa zangetsu [6.8K]

Answer:

Dude go and sleep, after waking up you will automatically get the answer.

believe me......

7 0

2 years ago

Answer 5 plz!! Due tomorrow!

Roman55 [17]

Hey!

So, the denominator tells us how many pieces there are in the pizza. (4)

4 × 1 = 4 --- That's not enough for 11 people, if each person is supposed to get 1 slice.

4 × 2 = 8 --- Still Not Enough.

4 × 3 = 12 --- This is more than enough. 11 people can each have 1 slice.

So, your answer is: Cyrus should order 3 pizzas.

8 0

3 years ago