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3 years ago

Half an hour times 5

Mathematics

1 answer:

BartSMP [9]3 years ago

4 0

2 hours and 30 minutes.

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During a reading test enq

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2 years ago

What is the definite integral of #x^3# from 1 to 2?

Anarel [89]

The definite integral of #x^3# is 1.5

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2 years ago

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18. Find the value of x that makes the equation true.

IgorC [24]

Step-by-step explanation:

✧ $\large{ \tt{ \: \frac{1}{2} x + 2 = \frac{3}{2} x - 6}}$

We need to get rid of the fractions. Notice that there are 4 terms in the equation. Multiply both sides of the equation by 2 to get rid of the fractions. Multiply by 2 because 2 is the denominator.

⤑ $\large{ \tt{2( \frac{1}{2} x + 2) = 2( \frac{3}{2} x - 6)}}$

⤑ $\large{ \tt{x + 4 = 3x - 12}}$

Subtract 4 from both sides in order to isolate the variable on the left.

⤑ $\large{ \tt{x + 4 - 4 = 3x - 12 - 4}}$

⤑ $\large{ \tt{x = 3x - 16}}$

Move 3x to left hand side and change it's sign

⤑ $\large {\tt{x - 3x = - 16}}$

Subtract 3x from 1x

⤑ $\large{ \tt{ - 2x = - 16}}$

Divide both sides of the equation by -2

⤑ $\large{ \tt{ \frac{ - 2x}{ - 2} = \frac{ - 16}{ - 2}}}$

⤑ $\large{ \tt{x = 8}}$

$\boxed{ \boxed{ \underline{ \tt{Our \: Final \: Answer : \boxed{ \underline{ \tt{x = 8}}}}}}}$

Hope I helped ! ♡

Have a wonderful day / night ! ツ

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3 years ago

Evaluate -3 to the 2 power + (2-6)(10) pls hurry i need help on it

stira [4]

Answer:

-31

Step-by-step explanation:

-3 to the power of 2 means -3*-3 and since negative multiplied by negative is positive, that will give 9

9 + (2-6)(10)

9+-4(10)

9+ -40

9-40

-31

5 0

2 years ago

Danny’s supermarket has 1 litter water bottles normally priced at $1.50 reduced 25%

geniusboy [140]

Answer: Danny's supermarket

Step-by-step explanation:

Danny's price- 0.75x1.5= $1.12 for 1 liter water bottle

Marta's price- $1.50 for 1.25 liter water bottle

1.12x1.25=1.40, if Danny was selling a 25% bigger bottle(making the bottle size equal to Marta's) it would cost $1.40, the lower price

4 0

2 years ago