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3 years ago

Sebastian has 12 more trophies than megan. Megan has t trophies. How many trophies does sebastian have

Mathematics

2 answers:

lina2011 [118]3 years ago

8 0

Answer:

t+12 trophies

Step-by-step explanation:

Since we cannot determine the value of t, the only thing we can do is write the expression t+12

weeeeeb [17]3 years ago

7 0

Answer:

t+12

Step-by-step explanation:

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How do you solve scientific notation problems? I’m struggling with it, plz help.

ycow [4]

I think this video will help you so much, it's about how to solve it from Khan Academy

https://www.khanacademy.org/math/pre-algebra/pre-algebra-exponents-radicals/pre-algebra-scientific-notation/v/scientific-notation-old

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3 years ago

How do you do multi step equations

masha68 [24]

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3 years ago

Addie walked 2 1/2 miles in 45 minutes. Suzie covered 2 2/5 miles in 2/3 of an hour.

NeX [460]

Addie's speed was $3\frac{1}{3}\ mph$

Step-by-step explanation:

Given,

Distance walked by Addie = $2\frac{1}{2}=\frac{5}{2}\ miles$

Time taken by Addie = 45 minutes

Converting the time into hours;

1 hour = 60 minutes

45 minutes = $\frac{45}{60}=\frac{3}{4}\ hour$

Distance = Speed * Time

Speed = Distance/Time

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Speed = $3\frac{1}{3}\ mph$

Addie's speed was $3\frac{1}{3}\ mph$

Keywords: speed, distance

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4 years ago

Into a bucket, 3.705 liters of water flowed in 7.8 minutes.

Doss [256]

0.475 liters per minute. You need to set up a proportion.
3.705L X
----------- --------
7.8 Min 1Min
Then you cross multiply(3.705*1) and divide(3.705/7.8) and you get your X.

4 0

3 years ago

Apolline is mowing lawns for a summer job. For every mowing job, she charges an initial fee plus a constant fee for each hour of

OLEGan [10]

Answer:

Base Fee = $7

Extra charges = $7

Step-by-step explanation:

Represent the base charge with x and the additiional charges with y.

For the 5 hours job, we have:

$42 = x + 5y$

For the 3 hour job

$28 = x + 3y$

Solving for x and y;

$42 = x + 5y$

$28 = x + 3y$

Subtract the second equation from the first

$42 - 28 = x - x + 5y - 3y$

$14 = 2y$

Solve for y

$y = 14/2$

$y = 7$

Substitute 7 for y n the first equation

$42 = x + 5y$

$42 = x + 5 * 7$

$42 = x + 35$

$x = 42 - 35$

$x = 7$

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3 years ago