MATHEMATICS MIDDLE SCHOOL

WILL NAME BRAINLIEST!The probability of drawing two red balls from a jar at random without replacement is 3/10. The probabilty of drawing a red ball first is 9/16.

What is the probability of drawing a second Redball, given that the first ball drawn was red?

A. 69/80

B. 8/15

C. 21/80

D. 27/160

Answers

Answer 1

Answer:

Answer:

B. $p = (8)/(15)$

Step-by-step explanation:

The probability of selecting a red and then a red without replacement is as follows:

$(9x)/(16) * (9x)/(16) -1$

This equals the given probability of $(3)/(10)$

More simply, we have the equaiton:

$(9)/(16) * P = (3)/(10)$

So, $p = (8)/(15)$

Answer 2

Answer:

Answer: 8/15

Step-by-step explanation:

Test

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Tom had 7/12 of a pizza. Hus liltle sister came along and took 2/5 of his pizza away. How much does tomhave left?
Please help 1/7x-3 5/7 > 4/7x-5 6/7

I need help to find T
t+12÷t-8=0

Answers

T IS EQUAL TO 6 AND 2

MATH SMARTIES PLZ HELP ME I NEED HELP SEEING IF THIS IS CORRECT PLZ BE HONEST AND IF I DO NOT HAVE CORRECT ANSWER CAN U PLEASE TELL ME

Answers

Answer: C. 1/25

Step-by-step explanation:

P(A) = favorable outcomes / possible outcomes

P(A and B) = probability of A * probability of B

P(tomato) = 2/10

P(cheese) = 2/10

P(tomato and cheese) = 2/10 * 2/10 = 1/25

Answer:

1/5

Step-by-step explanation:

You have 10 cans in all and the chance of pulling a can of tomato soup is 2/10 since there are two cans of tomato soup. simplifying 2/10 is 1/ 5. The same goes for the cheese soup. 10 cans two of them are cheese so you have 2/10, which simplify into 1/5

Which is greater 100 inches or 3 yards

Answers

ok 1yard=36 inches
convert to inches
3yards times 36=108 inches
100<108

3yards is bigger

Write the closest benchmark for the percent for 48%

Answers

Answer:

50%.

Step-by-step explanation:

We are asked to write the closest benchmark for the percent for 48%.

We know that most common benchmark percentages are 0%, 10%, 25%, 50%, 75% and 100%.

Since our given percent is 48%, so the closest benchmark percent would be 50% as rounding up 48%, we will get 50%.

it would be 50% because it could be 25%, 0%, 75%, or 100% but 48 is closest to 50

Solve these system of linear equations:5x-y=10}
4x-2y=20}

AND:

3x+4y=12}
2x-y=-10}

WITH STEPS PLEASE!!!!!

Answers

$5x-y=10 \n4x-2y=20 \ \ \ |\hbox{divide both sides by (-2)} \n \n5x-y=10 \n\underline{-2x+y=-10} \ \ \ |\hbox{add by sides} \n5x-2x-y+y=10-10 \n3x=0 \nx=0 \n \n\hbox{substitute 0 for x in one of the equations:} \n5 * 0 -y=10 \n-y=10 \ny=-10 \n \n\hbox{the answer:} \nx=0 \n y=-10$

$3x+4y=12 \n2x-y=-10 \ \ \ |\hbox{multiply both sides by 4} \n \n3x+4y=12 \n\underline{8x-4y=-40} \ \ \ |\hbox{add by sides} \n 3x+8x+4y-4y=12-40 \n11x=-28 \nx=-(28)/(11) \nx=-2 (6)/(11) \n \n\hbox{substitute -28/11 for x in one of the equations:} \n2 * (-(28)/(11))-y=-10 \n-(56)/(11)-y=-(110)/(11) \n-y=-(110)/(11)+(56)/(11) \n-y=-(54)/(11) \ny=(54)/(11) \ny=4 (10)/(11) \n \n\hbox{the answer:} \nx=-2(6)/(11) \ny=4 (10)/(11)$

masons favorite brand of peanut butter is available in two sizes each size and its pprices are shown in the table use the table for 1 and 2