A pencil box and a notebook together cost $6.28 the notebook cost $0.70 more than the pencil box . How much does the notebook cost?

Answers

Answer 1

Answer:

The cost of notebook is $3.49.

What is a word problem?

A word problem is a verbal description of a problem situation. It consists of few sentences describing a 'real-life' scenario where a problem needs to be solved by way of a mathematical calculation.

For the given situation,

Let the cost of pencil box be x

Let the cost of notebook be y

Total cost = $6.28

⇒ $x+y = 6.28 ----- (1)$

The notebook cost $0.70 more than the pencil box,

⇒ $y=x+0.70 ----- (2)$

Now substitute equation 2 in equation 1,

⇒ $x+x+0.70=6.28$

⇒ $2x=6.28-0.70$

⇒ $x=(5.58)/(2)$

⇒ $x=2.79$

∴ $y=6.28-2.79$

⇒ $y=3.49$

Hence we can conclude that the cost of notebook is $3.49.

Learn more about word problems here

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Answer 2

Answer:

Answer:

the note book costs $5.58

Step-by-step explanation:

you take 6.28 - 0.70

hope this helps ;)

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HELP ASP!!!!!! The explicit rule for a sequence and one of the specific terms is given. Find the position of the given
term.
f(n) = 1.25n +3.75; 20
20 is the
th term.

Answers

Answer:

13th term

Step-by-step explanation:

Answer:

the 13th term, if you plug in 13 for n and solve you would get 20 :)

Mr. Hann is trying to decide how many new copies of a book to order for his students. Each book weighs 6 ounces.Which ordered pair is a viable solution if x represents the number of books he orders and y represents the total weight of the books, in ounces?

Answers

The answer that only made sense to me is (0,0)

x + 6y x being the number of books he orders, considering you have no idea how many books he need this remains x. the information you do know is every book weighs 6oz. this is your y value.

Lin rode a bike 20 miles in 150 minutes. If she rode at a constant speed, how far did she ride in 15 minutes? How long did it take her to ride 6 miles? How fast did she ride in miles per hour?

Answers

Hey there! :)

Answer:

First part: 2 miles.

Second part: 45 minutes

Third part: 8 mph.

Step-by-step explanation:

We can divide this question into 3 parts.

Begin by solving for the distance traveled after 15 minutes by creating a ratio:

$(20 mi)/(150min) = (x)/(15 min)$

Cross multiply:

20 · 15 = 150 · x

300 = 150x

300/150 = 150x/150

x = 2 miles.

2nd part: How long it took her to ride 6 miles.

Set up another ratio similar to the one used before:

$(20 mi)/(150min) = (6mi)/(x min)$

Cross multiply:

20 · x = 6 · 150

20x = 900

20x/20 = 900/20

x = 45 minutes.

3rd part:

For this part, we will need to convert from minutes to hours.

$(20 mi)/(150 min)* (60 min)/(1 hr) = (1200mi)/(150hr) = 8 mi/h$

Therefore, her speed is 8 mph.

Need a answer ASAP ! An explanation and answer please

Answers

Answer:

i wish i could help but im dumb

Step-by-step explanation:

Pls help. polynomials solving equations

Answers

Answer:

+9or -9 is the answer ☺️ you

Answer:

y will be equal to 0, 9, or 1

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Another question... this was all the information I was given and I'm a tad confused as to how to go about solving it... help please??? Thank you so much!!!Julia needs to cut a 15m rope into 20 equal pieces. Calculate the length of each piece in cm

Answers

Argh! My answer was erased!

We need to cut a 15m rope into 20 equal pieces. Written mathematically, it is as follows:
15/20 = length of rope segment in meters (a)
15/20 = a

Simplify
3/4 = a

In meters, each rope segment is 3/4m long. But, we don't want meters. We want centimeters.

100 cm = 1 m

3/4(100) = length of rope segment in centimeters (x)
3/4(100) = x

300/4 = x
75 = x

Each segment of rope is 75 cm long.

The rope needs to be cut into 20 pieces, so 15/20, this will give you 3/4 of a meter per piece. Multiply 100 (100 cm in a meter), .75*100= 75 centimeters in a piece...

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