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3 years ago

What is 1/3-1/2 pls help me

Mathematics

2 answers:

hjlf3 years ago

7 0

1/3 -1/2 =

= 2/6 - 3/6

= - 1/6

Andrews [41]3 years ago

7 0

Step-by-step explanation:

1/3 - 1/2

First, balance the denominator by multiply 1/3 with 2, both numerator and denominator

1 x 2

-------

3 x 2

do The same step with 1/2 but multiply it with 3

1x3

-----

2x3

---

now just substract your new fraction

=2/6-3/6

= -1/6

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Distance is defined as the product of speed and time.

Given that the distance traveled in 3 seconds is 3/100 miles.

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We must first determine the distance traveled in 1 second in order to get the distance traveled in 1 minute.

It can cover 3/100 miles in 3 seconds.

So, in 1 second it can travel = 3/(100)(3) = 1/100 miles.

Now, We know that there are 60 seconds in a minute.

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⇒ (1/100) × 60

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2 years ago

Which number line correctly shows 1.5 + 2.5?

GrogVix [38]

Answer:

We conclude that the first line number represents 1.5 + 2.5.

Step-by-step explanation:

Given the expression

$1.5 + 2.5$

It means the first segment must represent 1.5 units starting from 0.

Since we have to add 2.5 to 1.5, so the next segment must represent 2.5 units, starting from 1.5

Combining them would make

$1.5 + 2.5=4$

Now, if we observe the first number line,

The first arrow represents the 1.5 units starting from 0.

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3 years ago

Please help !! 7th grade math, if anyone has the answer key please tell me what it is

STALIN [3.7K]

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4 years ago

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emmasim [6.3K]

Answer:

Step-by-step explanation:

if you notice here Josiah starts with 250 and Katie starts with 215, and in Josiah's equation he saves 25$ each month while Katie save 45$ each month, in order to find our answer we must multiply there starting amount by how many months.

A: 4 months is <em>incorrect</em> because Katie has 45x4+215 is 335, and Josiah has 25x4+250 is 350, so Katie is still behind

B: 5 months is <em>incorrect </em> because Katie has 45x5+215 is 375, and Josiah has, 25x5+250 which is 375, so they have the same amount of savings

C: 6 months is <em>correct</em> because Katie has 45x6+215 is 420, and Josiah has, 25x5+250 which is 400 , so Katie has more savings, Thus C is correct

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3 years ago

Find an equation of the sphere with points P such that the distance from P to A(−3, 4, 4) is twice the distance from P to B(6, 3

NeX [460]

Answer:

Therefore, we conclude that the center of sphere at point

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Step-by-step explanation:

We have the formula for distance, we get

\sqrt{(x+3)^2+(y-4)^2+(z-4)^2} =2· \sqrt{(x-6)^2+(y-3)^2+(z+1)^2}

(x+3)^2+(y-4)^2+(z-4)^2=4·[(x-6)^2+(y-3)^2+(z+1)^2]

x²+6x+9+y²-8y+16+z²-8z+16=4x²-48x+4y²-24y+4z²+8z+184

3x²+3y²+3z²-54x+16y+16z=-143

(x²-54x/3)+(y²+16y/3)+(z²+16z/3)=-143/3

(x²-54x/3+729/9)+(y²+16y/3+64/9)+(z²+16z/3+64/9)=-143/3+729/9+2·64/9

(x-27/3)²+(y+8/3)²+(z+8/3)²=428/9

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3 years ago