What is the ratio of 7 boys to 8 girls playing volleyball

Temka [501]

Answer:

distribute the 2 on the left side to become 2(x+7)-->2x+14=-4x+14, add 4x to both sides to become 2x+14+4x=-4x+14+4x-->6x+14=14, subtract 14 from both sides 6x+14-14=14-14-->6x=0 and divide both sides of the equation by 6 to get x alone, 6x/6=0/6-->x=0 so x would equal 0.

Step-by-step explanation:

8 0

2 years ago

There are 6 red marbles, 9 blue marbles, and 10 green marbles in a bag.

Nat2105 [25]

Answer:

I think 64%

Step-by-step explanation:

6+9+10 = 25

25x4 = 100

6x4 = 24

10x4 = 40

24+40 = 64

64/100 = 64%

Sry if this is wrong but I think this should be correct

7 0

3 years ago

Read 2 more answers

What’s the commutative property of addition ?

spin [16.1K]

Answer:

Its when you just swthc your thingy

Step-by-step explanation:

2+4=6

turns into

4+2=6

6 0

2 years ago

Read 2 more answers

The lengths, in minutes, of the movies currently showing at a movie theater are shown in the data set. Create a histogram

alexdok [17]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete, as the required lengths are not given.

I will use the following data set to answer the question.

$Dataset: 35, 51, 39, 42, 68, 62, 32, 59$

First, is to determine the range of the dataset

$Range = Highest - Least$

$Range = 68 - 32$

$Range = 36$

Next, we will make use of 4 classes. So, we divide range by 10 to get the number of class. 10 represents the interval

$Class= Range/10$

$Class = 36/10$

$Class = 3.6$

$Class \approx 4$

<em>So, we use 4 classes</em>

Plot the frequency distribution table as follows:

$\begin{array}{ccc}{Intervals} & {Observations} & {Frequency} & {31-40} & {32,35,39} & {3} & {41-50} & {42} & {1} & {51-60} & {51,59} & {2} & {61-70} & {62,68} & {2}\ \end{array}$

<em>See attachment for histogram</em>

5 0

3 years ago

using Cramers rule , what is the value of x in the system of linear equations below? -1/2x+3y=-4 -x-y=-1

Tatiana [17]

Cramer's rule tells you that the value of x in the system of equations

$ax+by=c\\dx+ey=f$

is given by

$x=\dfrac{ce-fb}{ae-bd}$

In matrix terms, this is the determinant of the coefficient matrix with the right-side constants replacing the x-coefficients divided by the determinant of the matrix of coefficients. The value of y can be found by doing similar math with the numerator being the determinant of the coefficient matrix with the right-side constants replacing the y-coefficients. For systems of higher dimension, the column of right-side coefficients replaces each column of variable coefficients in turn.

For your equations, this evaluates to

$x=\dfrac{(-4)\cdot (-1)-(-1)\cdot 3}{\frac{-1}{2}\cdot (-1)-(-1)\cdot 3}=\dfrac{7}{\left(\frac{7}{2}\right)}\\\\x=2$

4 0

3 years ago

What is the ratio of 7 boys to 8 girls playing volleyball​

What is the ratio of 7 boys to 8 girls playing volleyball