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Lilit [14]
3 years ago
6

it takes four trips around the track to make a mile Jack paddled his bike around the track 24 times it took him 30 minutes how m

any miles per hour was Jack pedaling
Mathematics
1 answer:
miss Akunina [59]3 years ago
8 0
He went around 24 times and 4 times is a mile so 24/4 will tell us how many miles he biked. He biked 6 miles in thirty minutes. The formula distance = rate(time) will tell you how fast he is going.

6 = r(1/2)    divide each side by 1/2 (The time has to be in hours)
12 = r 
So he was going 12 miles an hour.
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A sports team played 100 games last season. Did this team win at least half of the games it played last season? (1) The team won
Lelechka [254]

Answer:

Insufficient data.

Step-by-step explanation:

Given,

Total number of games = 100,

(1) The team won 60% of its first 65 games last season.

So, the number of winning games in 65 games = 60% of 65

=\frac{60\times 65}{100}

=13\times 3 = 39

But we do not know about the data for last 35 games,

Thus, the data is insufficient.

(2) The team won 60% of its last 65 games last season.

So, the number of winning games in last 65 games = 60% of 65 =39,

Thus, the total winning games = 45 + 45 = 90,

But we do not know about the data for first 35 games,

Thus, the data is insufficient.

When we combined both (1) and (2) statements,

we found that the maximum number of games won by the team = 39 + 39 = 78,

But there is a overlap of 30 games,

i.e. an unknown number will be subtract from 78 to find the exact number of winning games.

Hence, even after combining statements (1) and (2),

The data is insufficient.

6 0
3 years ago
Triangle abc is a right traingle if side ac=7 and side bc= 10 what is the measure of ab?
Artist 52 [7]
<span>Use the Pythagorean theorem for the right triangle ABC, where

AB is the hypotenuse of the triangle;

AC and BC are the other two sides.


So,

(AC)^{2}+(BC)^{2}=(AB)^{2}\\\\ 7^{2}+10^{2}=(AB)^{2}\\\\ (AB)^{2}=49+100\\\\ (AB)^{2}=149\\\\ AB=\sqrt{149}

</span>
7 0
3 years ago
A real root of X3 – 3x2 + x + 7 = 0 lies between two consecutive integers.
mamaluj [8]

Answer:

B. between -2 and -1

Step-by-step explanation:

Brainlyist please

3 0
3 years ago
Need help quickly test
MissTica
The answer is A - 5.
7 0
3 years ago
Find the surface area of the following figure with the given dimension
andrezito [222]

Answer:

The surface area is 54 square feet

Step-by-step explanation:

Given

The attached figure

Required

The surface area

This is calculated as:

SA = 2(LW + LH + HW)

Where

L = Length\\ W = Width\\ H = Height\\

So,

SA = 2  * (3 * 3 + 3 * 3 + 3 * 3)

SA = 54

6 0
3 years ago
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