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soldier1979 [14.2K]
3 years ago
10

Gia can run 4 miles in 32 minutes. At that rate, how many miles can she run in 40 minutes ​

Mathematics
1 answer:
Nitella [24]3 years ago
4 0

Answer:

5

Step-by-step explanation:

For these types of problems, we can use cross - multiplication.

4/32 = x/40

Notice that since 40 and 32 are both measured in minutes, we put them on the same line.

Now, like the name suggests, we cross multiply the equation, by doing 4 * 40 = 32 * x. Now, we are left with 160 = 32x. After solving this, we get the answer 5.

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A sporting goods store buys a basketball for $10.00 and then adds a 110% markup to the price. How much will the basketball sell
sweet-ann [11.9K]

Answer: The basketball will sell for $21 .

Step-by-step explanation:

Hi, to answer this question, first, we have to multiply the cost of the basketball (10) by the percent markup in decimal form (divided by 100).

Mathematically speaking:

10 x (110/100) = $11

Now, we have to add the markup amount (11) to the cost (10) to obtain the selling price:

10 +11 = $21

The basketball will sell for $21 .

3 0
3 years ago
Read 2 more answers
HELP PLEASE !!!!!
Ivahew [28]
\sum_{k=4}^8(2k+2)=2\cdot4+2+2\cdot5+2+2\cdot6+2+2\cdot7+2+2\cdot8+2\\
\sum_{k=4}^8(2k+2)=10+12+14+16+18\\
\sum_{k=4}^8(2k+2)=70
3 0
4 years ago
TRIATHLON The course for a local
EastWind [94]

Answer:

Step-by-step explanation:

The course for a local

triathlon has the shape of a right

triangle. This means that one of the angles formed is 90 degrees.

The legs of the triangle consist

of a 4-mile swim and a 10-mile run. These form the opposite side and that adjacent side of the right angle triangle. The hypotenuse of the triangle is the biking portion of the event. We would determine the length of the hypotenuse by applying Pythagoras theorem. It states that

Hypotenuse ^2 = opposite^2 + adjacent ^2

Hypotenuse ^2 = 4^2 + 10^2 = 16 + 100 = 116

Hypotenuse = √116 = 10.77 miles

Approximately 10.8 miles to the nearest tenth.

3 0
3 years ago
A rectangle has a a perimeter of 72 ft. The length and width are scaled by a factor 3.5. What is the perimeter of the resulting
madam [21]

Answer:

252

Step-by-step explanation:

When it comes to perimeter, the ratio is the same. So, the scale factor of the perimeters in this problem is simply, 3.5. To find the new perimeter, multiply 3.5 by 72 to get 252. :)

7 0
3 years ago
If the area of a square is quadrupled, what happens to the side length
irga5000 [103]

Answer:

The sides are doubled each if the area is quadrupled.

Step-by-step explanation: the area of a square is (s)squared. If the side is doubled, then say the side is 5. the original area would be 25. but is the side is doubled, then the side is 10. 10 squared is 100, 4 times 25.

3 0
3 years ago
Read 2 more answers
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