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Tomtit [17]
3 years ago
14

total cons of the 6 books and 7 pens is rupees 79 and the total cost of 7 book and six pen is rupees 77 find the cost of one boo

k and two pen​
Mathematics
1 answer:
inna [77]3 years ago
6 0

Answer:

guidance

Step-by-step explanation:

divide the amount by the total cost to get cost per product and add it until you find the amount!

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Chandra has $36.25 in dimes and quarters If she has 250 coins in total, hwo many
vladimir2022 [97]

Answer:

175 dimes and 75 quarters

Step-by-step explanation:

Make a system of equations, where d is the number of dimes and q is the number of quarters:

d + q = 250

0.1d + 0.25q = 36.25

Solve by elimination by multiplying the top equation by -0.1:

-0.1d - 0.1q = -25

0.1d + 0.25q = 36.25

0.15q = 11.25

q = 75

Then, plug in 75 as q into one of the equations to solve for d:

d + q = 250

d + 75 = 250

d = 175

So, there are 175 dimes and 75 quarters

7 0
3 years ago
Read 2 more answers
Which is the parent function of y=√5x+6
Ostrovityanka [42]
Hi there! The answer is D.

The parent function is the simplest form of a function. We can distinguish a variety of parent functions like linear, exponential, square root, absolute, logarithmic, quadratic, cubic, rational or constant (trigonometric functions excluded).

Now we can have a look at the function.
y =  \sqrt{5x  + 6}

The thing that is the most important in this function is the square root, because this mainly decides the way the function looks. Therefore, the parent function is the simplest form of a square root function, which is the following:
y =  \sqrt{x}

Therefore the answer is D.
~ Hope this helps you!
6 0
3 years ago
What percent of 20 is 40?<br> A 50%<br> B 75%<br> C 100%<br> D 200%
svet-max [94.6K]

It was

40 is 200% of 20

7 0
3 years ago
PLEASE HELP ASAP, HAVE TO TURN IN! I only need help with the first equation.
Gennadij [26K]

Answer:

x1 = 0, x2 = -7

Step-by-step explanation:

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8 0
3 years ago
Sally scored 9.007 in gymnastics. Jack scored 8.949. How much higher was sally scored than jack’s
insens350 [35]

Answer:

0.058

Step-by-step explanation:

3 0
3 years ago
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