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Tanya [424]
3 years ago
5

Naveen has a bag that contains 6 blue marbles, 3 green marbles, and 1 red marble. He will draw one marble randomly from the bag.

Naveen is studying the effects of adding and removing marbles from the bag. Write a number in each blank to correctly complete the statements.
If Naveen wants make sure that drawing a red marble is equally likely as drawing a different color marble, then he could add _____ red marble(s) to the bag.
If Naveen wants to make sure that drawing a green marble is more likely than not drawing a green marble, then he could remove _____ blue marble(s) from the bag.
Mathematics
1 answer:
timama [110]3 years ago
7 0

Answer:

3 red, 4 blue

Step-by-step explanation:

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-q-7q=8 whats q equal?
Luba_88 [7]
-q-7q=8
First you need to know that there is an invisible 1 in front of -q. Change it to -q if you need to. You get:
-1q-7q=8
add like terms: -1-7 gives you -8.
-8q=8. Divide by -8 on both sides to find q.
-8/8=-1
8/8=1
Therefore, q=1.
7 0
3 years ago
If the point (-1/2, y) lies on the line whose equation is 2x - 3y = 6, what is the value of y?
salantis [7]
Plug in the known x value

2(-1/2)-3y=6
-1-3y=6
-3y=7
y=-7/3

Final answer: -7/3
4 0
3 years ago
In a sample of 150 cars, 18 cars failed a safety inspection. The sampling method had a margin of error of 0.02
mestny [16]

Answer:  

(Lower limit, Upper limit) = (0.10, 0.14)

(Lower limit, Upper limit) = (10%, 14%)

Step-by-step explanation:  

Total number of cars = 150

Cars that failed the safety inspection = 18

The proportion is given by

p = 18/150

p = 0.12

p = 12%

The confidence interval is given by

p ± margin of error

Where margin of error is 0.02

0.12 ± 0.02

Lower limit = 0.12 - 0.02

Lower limit = 0.10

Lower limit = 10%

Upper limit = 0.12 + 0.02

Upper limit = 0.14

Upper limit = 14%

(Lower limit, Upper limit) = (0.10, 0.14)

(Lower limit, Upper limit) = (10%, 14%)

7 0
3 years ago
In winter, the price of apples suddenly went up by 0.75 per pound. Sam bought 3 pounds of apples at the new price for a total of
forsale [732]
5.88 / 3 = 1.96 per pound
original price - 1.21 per pound
5 0
3 years ago
Brian needs to paint a logo using two right triangles. The dimensions of the logo are shown below. What is the difference betwee
solong [7]

Answer:

7.5 cm²

Step-by-step explanation:

Dimensions of the large ∆:

base (b) = 3cm, height (h) = 9cm

Area = 0.5*b*h = 0.5*3*9 = 13.5 cm^2

Dimensions of the small ∆:

base (b) = 2cm, height (h) = 6cm

Area = 0.5*b*h = 0.5*2*6 = 6 cm^2

Difference between the area of the large and the small ∆ = 13.5 - 6 = 7.5 cm²

5 0
3 years ago
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