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3 years ago

Solve each equation 2n-5=21

Mathematics

1 answer:

aleksklad [387]3 years ago

4 0

2n-5=21
add 5 to both sides
2n=26
divide both sides by 2
n=13

I hope I helped! :)

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100 points <br> 1942 divded by 2^4

NARA [144]

Answer: 121.375

Step-by-step explanation:

$2^4=16$

$\frac{1942}{2^4}$

$\frac{1942}{16}=121.375$

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2 years ago

Keith buys 45 tickets for rides at the amusement park. Each ride requires 6 tickets to ride. If Keith already has gone on x ride

Lynna [10]

A is the correct answer if I did it right

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3 years ago

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Dimas [21]

2 49

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3 years ago

Gavin's dog had a litter of puppies. All of the puppies in this litter were either yellow or black. If there was one less black

mezya [45]

Answer:

Total number of puppies in the litter = 11

Step-by-step explanation:

Let the number of yellow puppies in the litter = y

And the number of black puppies in the litter = b

If there was one less black puppy, ratio of yellow to black puppies = $\frac{2}{3}$

$\frac{y}{b-1}=\frac{2}{3}$

2(b - 1) = 3y

3y - 2b = -2 -----(1)

If there was one more black puppy, ratio of yellow puppies to black puppies = $\frac{1}{2}$

$\frac{y}{b+1}=\frac{1}{2}$

2y = b + 1

2y - b = 1 -------(2)

Equation (1) - 2× equation (2)

(3y - 2b) - 2(2y - b) = -2 - 2

3y - 4y - 2b + 2b = -4

y = 4

From equation (1),

3×4 - 2b = -2

12 - 2b = -2

-2b = -14

b = 7

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3 years ago

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First, we need her speed as it will serve as the slope of the equation.
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time = 18 min
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k = (1/9)t
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6 0

3 years ago