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QveST [7]
3 years ago
13

5. Rory is playing a video game where each game lasts 13⁄4 hours. He wants to play for 9 hours today and this evening. How many

games can he play?
Mathematics
1 answer:
aev [14]3 years ago
3 0

Rory is playing a video game where each game lasts 13⁄4 hours. He wants to play for 9 hours today and this evening.

 13/4 hours taken to complete = 1 video game

9 hours taken to complete how many video games

\frac{13}{4} hours = 1 video game

9 hours = \frac{9}{\frac{13}{4}} =9 * \frac{4}{13} = \frac{36}{13}

We cannot simplify the fraction, we can write it as mixed fraction

\frac{36}{13} = 2 \frac{10}{13}

He can play 2\frac{10}{13} games in 9 hours




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In a fishing derby, jimmy caught six more fish than his sister kelly. How many fish did each person catch if they caught a total
valina [46]
That’s the answer
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8 0
3 years ago
The original price of a skateboard was $85. The owner of the store
lora16 [44]

Answer:

\$68

Step-by-step explanation:

1. Approach

To solve this problem, one wants to find the price of a product after its discount has been applied. The discount is 20% off, so the new price of the item is 80% of its original price (percent is out of 100 so if a an item is 20% off, it is 100 - 20 = 80; 80% the original price). To calculate the percent cost, one would divide the percent value by 100, and then multiply it by the price of the item.

2. Solving

The price of the new item is 80% of the price of the original item.  To calculate the percent cost, cent, one would divide the percent value by 100, and then multiply it by the price of the item.

Therefore, the equation that will be formed is,

price * \frac{percent}{100}

Substitute,

85 * \frac{80}{100}

Simplify,

85 * 0.8\\\\= 68

5 0
3 years ago
Ester's choir wants to learn a new song for the school concert in 7 weeks. The song has 3016 lines. The choir learns an equal nu
andriy [413]

Hello!

We are asked to find the number of lines the choir has to learn in time for a concert.

We're given that the concert is in 7 weeks, but they learn new lines each day, so we have to convert it to days. We know that there is 7 days in a week, we would multiply 7 weeks by 7 days, which is 49 days.

Now, we would take the total number of lines, which is 3016, and divide that by 49 days.

3016 lines / 49 days ≈ 61.55 lines/day

Since this is a real-world situation, we should round our answer is to nearest whole number, which would be 62 lines/day.

Therefore, Ester's choir needs to learn about 62 lines per day in time for the concert.

3 0
3 years ago
Please help 15 points and brilliant
Sholpan [36]
It would be the 3rd answer or f(x)= 0.5x2, f(x)=2x2, f(x)=-10x2.
4 0
4 years ago
Rhett is solving the quadratic equation 0= x2 – 2x – 3 using the quadratic formula. Which shows the correct substitution of the
Artemon [7]

Answer:

StartFraction 2 plus or minus StartRoot (negative 2) squared minus 4(1)(negative 3) EndRoot Over 2(1) EndFraction

Step-by-step explanation:

General quadratic equation: ax^2 + bx + c

where a is the coefficient of the quadratic term, b is the coefficient of the linear term and c is the independent term. Here the equation is: x^2 – 2x – 3, so a = 1, b = -2 and c = -3

Quadratic formula:

x = \frac{-b \pm \sqrt{b^2-4(a)(c)}}{2(a)}

Replacing

x = \frac{2 \pm \sqrt{(-2)^2-4(1)(-3)}}{2(1)}

8 0
3 years ago
Read 2 more answers
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