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3 years ago

Andrea wanted to run at least 3 more kilometers on Sunday than she ran on Friday and Saturday combined. Did she reach her goal?

Mathematics

2 answers:

Vesna [10]3 years ago

8 0

Answer:

7.254 and yes :))

Step-by-step explanation:

I got it right :))

Alenkinab [10]3 years ago

4 0

Answer:

Yes, Andrea reached her goal because 3.174 (monday) +4.08 (tuesday) is equal to 7.254 and her goal was to run three more km on Sunday than 7.254 which she did bc 7.254+3= 10.254km and she ran more than that on Sunday and surpassed her goal.

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3. Janet is flying a kite on a string that is 75m long. The kite is 62m above the ground. Estimate the distance between Janet an

konstantin123 [22]

Answer: a) It will be a right triangle with a hypotenuse of 75 and a vertical leg that is 62.
b) The length of the kite string is 75 (given in the problem). However, I believe you are looking for the distance from the spot on the ground beneath the kite to Janet. That is about 42.2 m.

To find the missing distance in the right triangle. You have to use the Pythagorean Theorem. I set it up and solve it below.

a^2 + b^2 = c^2
x^2 + 62^2 = 75^2
x^2 + 3844 = 5625
x^2 = 1781
x = 42.2 (about)

3 0

3 years ago

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7nadin3 [17]

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5 0

3 years ago

How do you write 0.3 as a fraction?

dimaraw [331]

Answer:

3/10

Hope it helps

7 0

3 years ago

Read 2 more answers

Determine the number of solutions 4x+y=-2 -20x-5y=-3

hammer [34]

Answer:

No solution

Step-by-step explanation:

4x + y = -2

-20x - 5y = -3

Using the Elimination method

(4x + y = -2 ) 5

20x + 5y = -10

-20x - 5y = -10

0 = -10

No Solution

8 0

3 years ago

What is the surface area of the triangular prism shown?

Lunna [17]

Answer:

The first step that we are going to do is to solve the area of the top rectangle. We are given a width of 15 cm and a length of 25 cm so we can just multiply them against each other to get the area.

$Area = l * w$

$Area = 25\ cm * 15\ cm$

$Area = 375\ cm^2$

The second side that we are going to solve for is the bottom rectangle. We are given a width of 12 cm and a length of 25 cm so lets just multiply them against each other to get the area.

$Area = l * w$

$Area = 25\ cm * 12\ cm$

$Area = 300\ cm^2$

The next area that we are going to determine is the back rectangle which has a width of 9 cm and a length of 25 cm so lets just multiply them against each other to get the area.

$Area = l * w$

$Area = 25\ cm * 9\ cm$

$Area = 225\ cm^2$

The final area that we have to determine are the side triangles. After determining the area of one triangle we will have to multiply it by 2 to get the area for both of the triangles. We are given a base of 12 cm and a height of 9 cm so lets just use the formula to find the area.

$Area = \frac{1}{2}* b*h$