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Crazy boy [7]
4 years ago
15

Raju bought seven notebooks of two hundred pages and five of hundred pages, for 107 rupees. Joseph bought five notebooks of two

hundred ages and seven of hundred pages, for 97 rupees. What is the price of each kind of notebook?
Mathematics
1 answer:
olga nikolaevna [1]4 years ago
8 0

Answer:

Large books = 11

Small books = 6

Step-by-step explanation:

7x + 5y = 107

7x = 107 - 5y

x = 107/7 - 5y/7

5x + 7y = 97

5 (107/7 - 5y/7) + 7y = 97

535/7 - 25y/7 + 7y = 97

535/7 + 24y/7 = 97

535 + 24y = 679

24y = 679 - 535

y = 144/24 = 6: So x =

7x + 5(6) = 107

7x = 107-30

x = 77-7 = 11

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Jen picked 3/4 of a gallon of strawberries in half an hour. If she keeps picking strawberries at the same rate, how many gallons
Ratling [72]
Hello!

3/4 = 0.75 as a decimal

We know that Jen picks 0.75 of a gallon of strawberries in half an hour, and now we want to find out how many gallons she'll pick in 2 hours.

Half an hour = 0.5 2 ÷ 0.5 = 4 There are four half hours in 2 hours.

0.75 × 4 = 3

ANSWER:

Jen will have picked 3 gallons of strawberries in 2 hours.
6 0
3 years ago
If d equals 3, what is the value of 6d-2?
umka2103 [35]

Answer:

16

Step-by-step explanation:

6(3)-2

16

7 0
3 years ago
Read 2 more answers
teri and her friends bought a party size sandwich that was 7/9 yard long. they ate 2/3 of a yard. what part of the yard was left
Marysya12 [62]
Teri had 7/9 of a sandwich, you need to find a common denominator for 2/3. Multiply 2/3 by 3 which is 6/9. (6/9 is how much they ate) Then you subtract 7/9 by 6/9 (7/9-6/9=1/9)
Answer:1/9 of a yard

I hope this helped.. not much of a teacher hahah :)
6 0
3 years ago
The length of a rectangle is 5.2cm and its breadth is 3.4cm. What is the area of the rectangle?
Rainbow [258]

Answer:

\huge{ \boxed{ \sf{17.68 \:  {cm}^{2} }}}

Step-by-step explanation:

\underline{ \text{Given}} :

\longrightarrow \sf{ \: Length \: of \: a \: rectangle \:  =  \: 5.2 \: cm}

\longrightarrow{ \sf{Breadth \: of \:  \: rectangle \:  =  \: 3.4 \: cm}}

\underline{ \text{To \: find} } :   \sf{Area \: of \: a \: rectangle}

\boxed{ \sf{Area \: of \: a \: rectangle \:  =  \: Length \:  \times  \: Breadth}}

\mapsto{ \sf{Area \:  =  \: 5.2 \: cm \:  \times  \: 3.4 \: cm}}

\mapsto{ \sf{Area \:  =  \: 17.68 \:  {cm}^{2} }}

Hope I helped!

Best regards! :D

~\text{TheAnimeGirl}

5 0
3 years ago
ILL GIVE YOU BRAINLIST !! * have to get it right !!! * Find the slope of the line.
sveticcg [70]

Answer:

slope is 2

Step-by-step explanation:

Find two points that can be used.

(0,4) (2,8)

Use the slope formula and plug in the numbers

\frac{y_{1}-y_{2}  }{x_{1}-x_{2}  }

\frac{8-4 }{2-0 }

\frac{4}{2}

=2

5 0
3 years ago
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