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3 years ago

Help I will mark you the brainiest!! 1-6

Mathematics

1 answer:

mars1129 [50]3 years ago

8 0

1. 0-2-8
2. Use the percentage section of a calculator
3. Rafael 10 secs
4.the line is going through the origin 0,0 and the line is straight
5. Use percentage section of calculator
6. 10,000

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A bag has 5 red marbles, 6 blue marbles and 4 black marbles. What is the probability of picking a

n200080 [17]

A bag has 5 red marbles, 6 blue marbles and 4 black marbles

so total no. of marbles = 5 + 6 + 4 = 15

now probability of picking a black marble = 4/15

after replacement again probability of picking black marble is 4/15

it is given that black marble is picked two times

so probability of picking black marble two times or picking , replacing , and then picking is 4/15*4/15 = 16/225

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2 years ago

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Which is the least time 9.675,9.7,9.75

Trava [24]

9.7 because its the only two numbers

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2 years ago

Which of these scales are equivalent to 3 cm to 4 km? select all that apply. recall that 1 inch is 2.54 cm

AlladinOne [14]

Answer:

1. 0.75 cm to 1 km

4. 0.3 mm to 40 m

Step-by-step explanation:

we have the scale

$\frac{3}{4}\frac{cm}{km}=0.75\frac{cm}{km}$

Verify each case

case 1) 0.75 cm to 1 km

$\frac{0.75}{1}\frac{cm}{km}=0.75\frac{cm}{km}$

therefore

The scale is equivalent to the given value

case 2) 1 cm to 12 km

$\frac{1}{12}\frac{cm}{km}=0.08\frac{cm}{km}$

$0.08\frac{cm}{km} \neq 0.75\frac{cm}{km}$

therefore

The scale is not equivalent to the given value

case 3) 6 mm to 2 km

Remember that

1 cm= 10 mm

1 mm=0.1 cm

we have

$\frac{6}{2}\frac{mm}{km}=\frac{0.6}{2}\frac{cm}{km}=0.30\frac{cm}{km}$

$0.30\frac{cm}{km} \neq 0.75\frac{cm}{km}$

therefore

The scale is not equivalent to the given value

case 4) 0.3 mm to 40 m

Remember that

1 cm= 10 mm -----> 1 mm=0.1 cm

1 km=1,000 m ----> 1 m=0.001 km

we have

$\frac{0.3}{40}\frac{mm}{m}=\frac{0.03}{0.04}\frac{cm}{km}=0.75\frac{cm}{km}$

$0.75\frac{cm}{km}=0.75\frac{cm}{km}$

therefore

The scale is equivalent to the given value

case 4) 1 inch to 7.62 km

Remember that

1 in= 2.54 cm

we have

$\frac{1}{7.62}\frac{in}{km}=\frac{2.54}{7.62}\frac{cm}{km}=0.33\frac{cm}{km}$

$0.33\frac{cm}{km} \neq 0.75\frac{cm}{km}$

therefore

The scale is not equivalent to the given value

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2 years ago

Help and I will give brainliest Don’t answer part a and part b

BaLLatris [955]

What do u need help on

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2 years ago

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The Commutative Property of Addition would say 3y + 6 = _______

spayn [35]

Answer:

6 + 3y

Step-by-step explanation:

a + b = b + a

Numbers can be added in any order, and you still get the same answer

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2 years ago