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3 years ago

What is the final cost of a $499 iPad that has been marked down 20% and includes 7% sales tax?

Mathematics

2 answers:

lapo4ka [179]3 years ago

4 0

Answer:

Step-by-step explanation:

Given that the original price of the TV is $499, the new price after the given percent of change of 10% would be, $548.9. 10% of $499 is $49.9. This is added to the original price. Now, if the increase is 30%, 30% of $499 would be $149.7. Add this to $499 and the new price is $648.7. Hope this answers your question.

VLD [36.1K]3 years ago

3 0

Answer:$427.14

Step-by-step explanation:

Multiply $499 and 20% = 99.8

499-99.8=399.2

399.2 multiplied by 7%=27.944

Add 399.2 and 27.944= 427.144

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A boat leaves a.M. Marina at 7 AM traveling at 3.4 knots bearing is N38°E the boat docks on an island at 2pm how far north of th

Jlenok [28]

Answer:

The distance between the docks & island is 44.07 km.

Step-by-step explanation:

Speed of the boat S = 3.4 knot = 6.3 $\frac{km}{hr}$

Time taken by bot to reach the island = 7 hr

We know that the distance is given by

Distance = Speed × Time

Put all the values in above equation we get

D = 6.3 × 7

D = 44.07 km

Therefore the distance between the docks & island is 44.07 km.

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2 years ago

PLZ HELP The function shown models the total number of insects in a colony x months after a small number of the insects are brou

Zina [86]

Answer:

Ask your teacher

Step-by-step explanation:

7 0

2 years ago

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Combine like terms to create an equivalent expression 2s+ (-4s) pls help

pav-90 [236]

The equivalent expression to $2s + (-4s)$ is $-2s.$

Step-by-step explanation:

Step 1:

In sums like these, it is easier to take the common term out of the simplification.

In the expression $2s + (-4s)$ , the common term between $2s$ and $-4s$ is the term s. So we take the term s as the common factor.

So taking s out of $2s + (-4s)$ we get $s (2+(-4)).$

Step 2:

If we multiply a positive with a negative we get a negative. S0 $+(-4) = -4.$

$2s + (-4s) = s (2-4) = s(-2) = -2s.$

So the equivalent expression to $2s + (-4s)$ is $-2s.$

5 0

2 years ago

Suppose a family has three children of different ages. We assume that all combinations of boys and girls are equally likely. (a)

Ivan

Answer:

a) There are 8 possible combinations and each probability is 1/8.

b) The probability that it is a boy given that there are two girls is 3/8

Step-by-step explanation:

a) The sample space is given by:

BBB (3 boys)

BBG (Boy, boy, girl)

BGB (Boy, girl, boy)

BGG (Boy, girl, girl)

GBB (girl, boy, boy)

GBG (girl, boy, girl)

GGB (girl, girl, boy)

GGG (3 girls)

The probability of each combination is the same:

P(BBB)=P(B∩B∩B)= $\frac{1}{2} \frac{1}{2} \frac{1}{2}=\frac{1}{8}$

2) There are three possible combinations in which there are 2 girls and 1 boy:

BGG, GBG, GGB

So the probability is given by:

P(BGG ∪ GBG ∪ GGB)= $\frac{1}{2} \frac{1}{2} \frac{1}{2}+\frac{1}{2} \frac{1}{2} \frac{1}{2}+\frac{1}{2} \frac{1}{2} \frac{1}{2}=\frac{3}{8}$

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2 years ago

it takes engineer 3 hrs to drive to his brother's house at an average of 50 miles per hour. if he takes same route home, but his

Katarina [22]

Answer:

t2 = 2.5 hours.

Step-by-step explanation:

The distance is the same.

d = r * t

The rates and times are different so

t1 = 3 hours

t2 = X

r1 = 50 mph

r2 = 60 mph

r1 * t1 = r2*t2

50 * 3 = 60 * t2

150 = 60 * t2

150 / 60 = t2

t2 = 2.5

7 0

2 years ago

Read 2 more answers