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3 years ago

7,-3,12,-0.8,0.8,-10,-2 if these numbers represent temperatures in degrees Celsius which is the coldest?

Mathematics

1 answer:

Lana71 [14]3 years ago

5 0

Answer:

-10 i think

Step-by-step explanation:

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Emily practices piano for 2/3 of an hour on Monday and 1/2 hour on Wednesdays. How many hours does Emily spend practicing piano

Sergeu [11.5K]

Answer:

50 minutes

Step-by-step explanation:

Given:

$\bullet \ \ \text{Monday:} \ \dfrac{2}{3} \times \text{Hour}\\\\\bullet \ \text{Wednesday:} \ \dfrac{1}{2} \times \text{Hour}$

Since Emily only practiced on Monday and Wednesday, the sum of time on both days is the time Emily practiced on the piano for a week.

$\implies \text{Monday + Wednesday = Total time practiced on piano for a week}$

Substitute the times in the equation

$\implies (\dfrac{2}{3} \times \text{Hour}) + (\dfrac{1}{2} \times \text{Hour}) = \text{Total time practiced on piano for a week}$

Simplify the equation

$\implies (\dfrac{2}{3} \times 60 \ \text{minutes}) + (\dfrac{1}{2} \times 60 \ \text{minutes}) = \text{Total time practiced on piano for a week}$

$\implies (20 \ \text{minutes}) + (30 \ \text{minutes}) = \text{Total time practiced on piano for a week}$

$\implies \boxed{50 \ \text{minutes} = \text{Total time practiced on piano for a week}}$

4 0

2 years ago

A car was bought for 5500 and sold at 6500 find the percentage

-Dominant- [34]

Answer:

18.18%

Step-by-step explanation:

Percent change formula:

(new amount - old amount)/(old amount) * 100%

new amount: 6500

old amount: 5500

percent change:

(6500 - 5500)/5500 * 100% = 18.18%

7 0

3 years ago

Read 2 more answers

a box contains 512 grams of cereal. one serving of cereal is 56 grams. how many servings of cereal does the box contain

forsale [732]

A box contains 512 grams of cereal.

one serving of cereal = 56

So, The number of servings of cereal contained in the box can be calculated by dividing the total of grams over one serving of cereal

∴ The number of servings = $\frac{512}{56} = \frac{9*56+8}{56} = 9 \frac{8}{56}$ 

So, The correct answer is $9 \frac{8}{56}$

6 0

3 years ago

Solve: 6m+5=-(1-8m) Show your work!

Ray Of Light [21]

Answer:

3=m

Step-by-step explanation:

6m+5=-(1-8m)

6m+5=-1(1-8m)

6m+5=-1+8m

6m+6=8m

6=2m

3=m

7 0

3 years ago

Please helpppp me pleaseeee

Sergio039 [100]

You will need 2 cups of water.

5 0

3 years ago

Read 2 more answers

7,-3,12,-0.8,0.8,-10,-2 if these numbers represent temperatures in degrees Celsius which is the coldest￼?

7,-3,12,-0.8,0.8,-10,-2 if these numbers represent temperatures in degrees Celsius which is the coldest?