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2 years ago

10x - 9y = 24 i need help solvinv for y and i need the work to see what i be doing wrong .

1 answer:

3 0

Simplifying
10x + -9y = 24

Solving
10x + -9y = 24

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '9y' to each side of the equation.
10x + -9y + 9y = 24 + 9y

Combine like terms: -9y + 9y = 0
10x + 0 = 24 + 9y
10x = 24 + 9y

Divide each side by '10'.
x = 2.4 + 0.9y

Simplifying
x = 2.4 + 0.9y

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In a game of poker a hand of five cards is dealt to each player from a deck of 52 cards. find the probablility of a hand contain

aalyn [17]

Answer:

0.00597

Step-by-step explanation:

Given,

Total number of cards = 52,

In which flush cards = 20,

Also, the number of spade flush cards = 5,

Since,

$\text{Probability}=\frac{\text{Favourable outcomes}}{\text{Total outcomes}}$

Thus, the probability of a hand containing a spade flush, if each player has 5 cards

$=\frac{\text{Ways of selecting a spade flush card}}{\text{Total ways of selecting five cards}}$

$=\frac{^{20}C_5}{^{52}C_5}$

$=\frac{\frac{20!}{5!15!}}{\frac{52!}{5!47!}}$

$=\frac{15504}{2598960}$

= 0.00597

7 0

3 years ago

The distance a spring will stretch varies directly with how much weight is attached to the spring. if a spring stretches 9 inche

Tcecarenko [31]

9/100 = x/90
Cross multiply to get 810 = 100x
Divide both sides by 100 to get x = 81 inches

6 0

2 years ago

Yasmine has 4 containers of 4 different colors of flowers to plant. She had 1/3 of each color left over when she was done planti

olga2289 [7]

Answer:

$2\frac{2}{3}$

Step-by-step explanation:

Given the information

4 containers of 4 different colors
1/3 of each color left over
She had planted more than 2 1/2 of the original 4 containers

=> Total color were left = 1/3 x 4 = 4/3 of the original containers

=> Total color were planted = (1 - 1/3) x 4 = 2/3 x 4 = 8/3 of the original containers

However, 8/3 = $2\frac{2}{3}$ > 2 $\frac{1}{2}$

So she is true, hence, the fractions to determine the total amount of containers of flowers she planted is: $2\frac{2}{3}$

Hope it will find you well

7 0

2 years ago

PLEASE HELP ME im so lost on this

netineya [11]

Answer:

Step-by-step explanation:

7 0

2 years ago

In a study of pain relievers, 50 people were given product A, and all but 11 experienced relief. In the same study, 100 people w

Nataly_w [17]

Answer:

Product B performed worse in the study because 86% failed to get relief with this product, whereas only 78% failed to get relief with Product A

Step-by-step explanation:

We are given the following in the question:

Product A:

Number of people,

$n_1 = 50$

Number of people who received relief,

$x_1 = 11$

Proportion of people who received relief from product A =

$p_A = \dfrac{x_1}{n_1} = \dfrac{11}{50} = 0.22 = 22\%$

Proportion of people who did not received relief from product A =

$1 = p_A = 1 - 0.22 = 0.78 =78\%$

Product B:

Number of people,

$n_2 = 100$

Number of people who received relief,

$x_2 = 14$

Proportion of people who received relief from product B =

$p_B = \dfrac{x_2}{n_2} = \dfrac{14}{100} = 0.14 =14\%$

Proportion of people who did not received relief from product B =

$1 = p_B = 1 - 0.14 = 0.86=86\%$

Product B performed worse in the study because 86% failed to get relief with this product, whereas only 78% failed to get relief with Product A

3 0

3 years ago