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ANEK [815]
4 years ago
6

Sydney read 50 pages in 40 minutes. She reads at a constant rate.How many pages can Sydney read per minute?

Mathematics
1 answer:
7nadin3 [17]4 years ago
3 0

Here we are given how much work is done in a fix time interval

then they ask to find the rate of doing the work .

in such problem we can find the rate of doing a work by using the formula :

amount of work done

--------------------------------------------------- = work done in unit time

Time taken to do that amount of work

In 40 minutes number of pages she reads = 50

In 1 minutes number of pages she would be reading = 50 /40

= 5/4 page

Answer 5/4 page .

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Ilia_Sergeevich [38]

Answer:

He must work additional 8 hours.

Step-by-step explanation:

Because 1550.00/20=7.75

217.00/7.75=28

28-20=8

So,an additional of 8 hours

6 0
4 years ago
Please help me with this.<br> I need a maths genius<br> See pic below.<br> Thanks
adelina 88 [10]

Answer:

a =15

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Step-by-step explanation:

it will help u

5 0
3 years ago
ayme built a box in the shape of a rectangular prism with the dimensions shown. What is the volume of the box, in cubic inches?
Snezhnost [94]

Answer:

64(in)^{3}

Step-by-step explanation:

The volume of a box is equal to the length l times the width w times the height h.

(lenght) \times (width) \times (height)

Substitute the values of the length l=8, the width w=2, and the height h=4 into the formula.

8 \times 2 \times 4

Multiply 8 by 2.

16 \times 4

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64 {in}^{3}

Hence, the volume of the rectangle prism is 64(in)³.

4 0
3 years ago
Read 2 more answers
Emma has money into savings accounts. One rate is 8% and the other is 12%. If she has $450 more in the 12% account and the total
AveGali [126]

Let's say that the value invested in the account with a rate of 8% is "x", then the amount invested in the account with a rate of 12% is:

x+450

To calculate the total interest we need to calculate the interest of each individual account and sum them:

\begin{gathered} \frac{8}{100}\cdot x=0.08\cdot x \\ \frac{12}{100}\cdot(x+450)=0.12\cdot x+54 \end{gathered}

The total interest is the sum of the two expressions above:

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The value invested in the account with 8% interest is 830, the one invested in the account with 12% interest is 1280.

7 0
1 year ago
What is the area of side A??
zimovet [89]
Side a can be broken into to rectangles having areas:

(12-8)*4 and 8*12 so the area of side A is

A=16+96

A=112cm^2
4 0
3 years ago
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