MATHEMATICS MIDDLE SCHOOL

vector is flying his helicopter at 200 miles per hour. how long has he been flying if he has traveled 1,200 miles?

Answers

Answer 1

Answer:

Answer:

6 hours

Step-by-step explanation:

200mph

1200 miles

200X=1200

X=6

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Is 0.15 greater than 0.4
Unit TestActiveTIME REMAINING01:34:32For one month Siera calculated her home town's average high temperature in degrees Fahrenheit. She wants to convert thattemperature from degrees Fahrenheit to degrees Celsius using the function - 32). What does C(F) represent?the temperature of F degrees Fahrenheit converted to degrees Celsiusthe temperature of F degrees Celsius converted to degrees Fahrenheitthe temperature of C degrees Fahrenheit converted to degrees Celsiusthe temperature of C degrees Celsius converted to degrees FahrenheitNova BSave and ExitSubmit
Rounding to the nearest Tenth? 0.496
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What is the domain of the square root function graphed below ?

Answers

The graph shows that x never becomes < 0. In other words the point (-1,0) is not part of the graph. So D is your only answer.

Answer:

Option D is correct.

Step-by-step explanation:

Given: A graph.

We know that The domain of a function is the complete set of possible values of the independent variable.

From given graph x is independent variable.

Generally Domain for the Square root function is all non negative real numbers.

So, from given graph and general domain.

Domain of given graph = x ≥ 0

Therefore, Option D is correct.

scores on a college entrance examination are normally distributed with a mean of 500 and a standard deviation of 100% of people who write this exam obtain scores between 425 and 575

Answers

We have

$\mu = 500$

$\sigma = 100$

425 corresponds to a z of

$z_1 = (425 - 500)/(100) = -\frac 3 4$

575 corresponds to

$z_2 = (575 - 500)/(100) = \frac 3 4$

So we want the area of the standard Gaussian between -3/4 and 3/4.

We look up z in the standard normal table, the one that starts with 0 at z=0 and increases. That's the integral from 0 to z of the standard Gaussian.

For z=0.75 we get p=0.2734. So the probability, which is the integral from -3/4 to 3/4, is double that, 0.5468.

Answer: 55%

Nat’s grocery bill was $150, which includes a 5% club discount. What was nats bill before the discounts

Answers

The amount Nat's paid at the club before the discount is $157.90

Given:

Total bill including discount = $150

Discount = $5

Amount before discount = x

Total bill including discount = Amount before discount - (Discount × Amount before discount)

150 = x - (5% × x)

150 = x - (0.05 × x)

150 = x - 0.05x

150 = 0.95x

divide both sides by 0.95

x = 150 / 0.95

x = 157.89473684210

Approximately,

x = $157.90

Therefore, amount Nat's paid at the club before the discount is $157.90

brainly.com/question/19535437

Answer:

$157.89

Step-by-step explanation:

The original price is x

you took away 5%, making the new price 95% of x, or .95x

Put it in an equation

.95x = 150

x = 150/.95

x = 30/.19

x = 3000/19

x=157 17/19

x is about $157.89

A garden centre has reduced the price of all plant pots by 20%. Jane bought a reduced plant pot for £40. How much would she have paid for this plant pot before the price reduction?

Answers

She paid 80% of the regular price because it was 20% off so...

80% = £40

We want to get to the regular price (100%) so...

100% = £40 x 100/80 = £50

answer: £50

Answer:he paid 80% of the regular price because it was 20% off so...

80% = £40

We want to get to the regular price (100%) so...

100% = £40 x 100/80 = £50

answer: £50

Step-by-step explanation:

lisa is painting a fence that is 26 feet long and 7 feet tall. A gallon of paint will cover 350 square feet. Write and slove a proportion to determine how many of paint lisa will need

Answers

26 x 7 = 182 now divide that by 16 and your answer is 11.375 round that up to 12.

kelly is 66 inches tall. Lucas is 72 inches tall. What is the ratio of Lucas's height to Kelly's height in simplest form? (: also, explain please!

Answers

Just divide Lucas's height by Kelly's height.
72/66
The GCF is 6 so divide both by 6
12/11
That's the answer :)

72/66 greatest common factor is 6 so iffy would be 12/11 which is your answer.:)

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the cooking class uses 5 pounds of flour to make 120 oatmeal cookies. How many oatmeal cookies can be made with a 2 bag of flour?

What is 16,473 to the nearest hundred