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1 year ago

PLLLLEASE ASAP GUYS PLEASEE OMG

Mathematics

2 answers:

vovangra [49]1 year ago

7 0

Answer:

27/30

Step-by-step explanation:

9/10 x3 to both sides = 27/30

Ket [755]1 year ago

6 0

Answer:

$\dfrac{27}{30}$

Explanation:

In a normal fraction such as $\frac{a}{b}$ , a is the numerator and b is the denominator.

Here the given fraction is $\frac{9}{10}$ , to rewrite the fraction with a denominator of 30. Multiply both the numerator and denominator by 3.

$\rightarrow \dfrac{9}{10}$

$\rightarrow \dfrac{9\:\times\:3}{10 \:\times \: 3}$

$\rightarrow \dfrac{27}{30}$

Both the fractions are equivalent to each other.

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Do you know what is 1/5 of 35

deff fn [24]

Answer:

Step-by-step explanation:

Because 35/5=7 so 1/5 of 35 would = 7

7 0

3 years ago

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What is the volume of a box measuring 8mm×10cm×5cm

notka56 [123]

The answer is 400 because u multiply 8 x 10= 80 x 5=400

8 0

3 years ago

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The weekly amount spent by a small company for in-state travel has approximately a normal distribution with mean $1450 and stand

Llana [10]

Answer:

0.0903

Step-by-step explanation:

Given that :

The mean = 1450

The standard deviation = 220

sample mean = 1560

$P(X > 1560) = P( Z > \dfrac{x - \mu}{\sigma})$

$P(X > 1560) = P(Z > \dfrac{1560 - 1450}{220})$

$P(X > 1560) = P(Z > \dfrac{110}{220})$

P(X> 1560) = P(Z > 0.5)

P(X> 1560) = 1 - P(Z < 0.5)

From the z tables;

P(X> 1560) = 1 - 0.6915

P(X> 1560) = 0.3085

Let consider the given number of weeks = 52

Mean $\mu_x$ = np = 52 × 0.3085 = 16.042

The standard deviation = $\sqrt {n \time p (1-p)}$

The standard deviation = $\sqrt {52 \times 0.3085 (1-0.3085)}$

The standard deviation = 3.3306

Let Y be a random variable that proceeds in a binomial distribution, which denotes the number of weeks in a year that exceeds $1560.

Then;

Pr ( Y > 20) = P( z > 20)

$Pr ( Y > 20) = P(Z > \dfrac{20.5 - 16.042}{3.3306})$

$Pr ( Y > 20) = P(Z >1 .338)$

From z tables

P(Y > 20) $\simeq$ 0.0903

7 0

3 years ago

24 Points, ez quick math problem. Multiple choice.

Lana71 [14]

Answer:

Rectangle

Perimeter: 30 units

Step-by-step explanation:

The easiest way is by sketching the graph, as shown in the picture.

Alternatively, you can use Pythagoras Theorem to find length of each side. However in this case, since there are only horizontal and vertical lines, the length of each side is calculated as

6-(-4) = 10

11-6 = 5

Perimeter= 10+10+5+5 = 30 units

5 0

2 years ago

Noa drove from the Dead Sea up to Jerusalem, and her altitude increased at a constant rate of 740 meters per hour. When she arri

exis [7]

Noa started at – 400 meters below sea level.

Step-by-step explanation:

We have , Noa drove from the Dead Sea up to Jerusalem, and her altitude increased at a constant rate of 740 meters per hour. When she arrived in Jerusalem after 1.5, point, 5 hours of driving, her altitude was 710 meters above sea level. We need to find the initial height from sea level . Let's find out:

Let N(t) be Noa’s altitude to sea level and time t .

$N(t) = 740(t) + h$ . where h is initial height we need to find.