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3 years ago

There were 80 people in the parade. A total of 5/8 of the people played a musical instrument.

Mathematics

2 answers:

creativ13 [48]3 years ago

6 0

50 People played an instrument. Every 10 people is represented as a 1 in the fraction. 5=50

Solnce55 [7]3 years ago

3 0

Hi there!!!

50 people played A musical instrument!!

Hope thats helps!!!

Have A Wonderfulll Taco Tuesday XD

XAnsX

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Two-thirds of a number added to itself is 20. What is the number?

vivado [14]

Answer:

Step-by-step explanation:

2/3 x + x = 20

2/3 x + 3/3x = 20

5/3 x = 20 ... times 3/5 both sides

x = 12

check: 2/3 x 12 + 12 = 8 + 12 = 20

8 0

3 years ago

Let V=ℝ2 and let H be the subset of V of all points on the line 4x+3y=12. Is H a subspace of the vector space V?

sergejj [24]

Answer:

No, it isn't.

Step-by-step explanation:

We have $V=IR^{2}$ and let $H$ be the subset of $V$ of all points on the line

$4x+3y=12$

We need to find if $H$ is a subspace of the vector space $V$ .

In $IR^{2}$ all the possibilities for own subspace of the vector space $IR^{2}$ are :

$IR^{2}$ itself.

The vector $0_{IR^{2}}=\left[\begin{array}{c}0&0\end{array}\right]$

All lines in $IR^{2}$ that passes through the origin ( $0_{IR^{2}}=\left[\begin{array}{c}0&0\end{array}\right]$ )

We know that $H$ is the subset of $IR^{2}$ of all points on the line $4x+3y=12$

If we look at the equation, the point $\left[\begin{array}{c}0&0\end{array}\right]$ doesn't verify it because :

$4x+3y=12\\4(0)+3(0)=12\\0=12$

Which is an absurd. Therefore, $H$ doesn't contain the origin (and $H$ is a line in $IR^{2}$ ). Finally, it can't be a vector space of $V=IR^{2}$

8 0

3 years ago

If a transformation moves points only up or down, how do the coordinates of the point change? What can you conclude about the co

yarga [219]

<span>There are different coordinate systems the commonest being the system of latitudes, longitudes, and ellipsoidal heights, and the situation is complicated because the latitudes and longitudes of the same point differ slightly depending on the geodetic coordinate system of a nation,the result being that different system of latitude and longitude in use for the same point can disagree in coordinates sometimes by more than 200 meters.</span>

5 0

3 years ago

Can y’all plz help me ?

crimeas [40]

Answer:

x=-5

Step-by-step explanation

The first box has eight x's and six 1's which means that it would be written as 8x+6

The second box has four x's and fourteen -1's which means that it would be written as 4x-14

You set them equal to one another

8x+6=4x-14

You subtract 4x from both sides

4x+6=-14

Subtract 6 on both sides

4x=-20

Divide 4 on both sides

x=-5

Hope it helps :))

4 0

3 years ago

X=2y=14 and x-3y=-11

levacccp [35]

X - 2y= 14
x - 3y= - 11 | * ( -1)

x - 2y = 14
-x + 3y= 11
----------------
/ y= 25

x - 2*25= 14
x - 50 =14
x= 14+50
x=64

7 0

3 years ago