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3 years ago

What is 3/4 turn into a percentage?

Mathematics

2 answers:

Hoochie [10]3 years ago

8 0

75% I need to make this longer lol but 75%

nydimaria [60]3 years ago

5 0

Answer:75%

Step-by-step explanation:

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Suppose that the function f(x)=7x+2 represents the number of cars that drive by in x minutes. How many cars will drive by in 10

vredina [299]

Answer:

c) 72

Step-by-step explanation:

the function f(x)=7x+2 represents the number of cars that drive by in x minutes
x = 10
f(10) = 7×10+2 = 70+2 = 72

3 0

3 years ago

1. Janna works at a lab with a huge circular particle accelerator. It has a radius of 4 kilometers. What is the accelerator's di

blsea [12.9K]

Answer:

1. diameter=8 kilometres

2. area=98.96 inches

3. 37m

Step-by-step explanation:

1. diameter= 2*radius

2. area of sector=θ out of 360*π $r^{2}$ where θ is the angle

3. area of garden=π $r^{2}$

706.5=π $r^{2}$

$r^{2}$ =706.5/π

= 225(nearest whole)

r= $\sqrt{225}$ =15m

we now use Pythagoras theorem to find length of each pathway

$40^{2} =15^{2} +x^{2}$

1600=225+ $x^{2}$

$x^{2}$ =1600-225=1375

x= $\sqrt{1375}$ =37 m (to nearest whole)

5 0

3 years ago

The function p(t) represents the value of a new car t years after it was manufactured.

Yakvenalex [24]

Answer:

The value of the car is 0.94 times the value of the car the previous year.

5 0

3 years ago

Read 2 more answers

DUE NOW

Llana [10]

Answer:

Relative frequencies

First row

0.8125 ,0.1875 ,16

Second row

0.555 ,0.444 ,9

third row

18 , 7 , 25

Step-by-step explanation:

Given data

allowance No allowance total

Chores 13 3 16

No chores 5 4 9

Total 18 7 25

Relative frequencies

allowance No allowance total

Chores $\frac{13}{16} = 0.8125$ $\frac{3}{16} = 0.1875$ 16

No chores $\frac{5}{9} = 0.555$ $\frac{4}{9} = 0.444$ 9

Total 18 7 25

3 0

3 years ago

Let $P$ and $Q$ be constants. The graphs of the lines $x + 5y = 7$ and $15x + Py = Q$ are perpendicular and intersect at the poi

Marta_Voda [28]

Answer:

(-3, -129)

Step-by-step explanation:

Given

Two lines:

$x + 5y = 7$

$15x + Py = Q$

are perpendicular to each other and intersect at point (-8,3).

To find: (P, Q)

Solution:

The two lines intersect at (-8,3).

It means, the equation of line will be satisfied when we put value of x = -8 and y = 3

Putting in the second equation, we will get an equation in P and Q:

$15\times (-8) + P \times 3 = Q\\\Rightarrow 3P = Q +120 ..... (1)$

Given that two lines are perpendicular.

It means the product of their slopes will be equal to -1.

i.e. $m_1\times m_2=-1$

Slope of a line of the form $ax+by+c=0$ is given as:

$m=-\dfrac{a}{b}$

So, slopes of given lines are:

$m_1=-\dfrac{1}{5}\\m_2=-\dfrac{15}{P}$

Using the condition:

$-\dfrac{1}{5}\times \dfrac{-15}{P}=-1\\\Rightarrow P = -3$

Putting the value of P in equation (1):

$\Rightarrow 3\times (-3) = Q +120 \\\Rightarrow Q = -9-120 = -129$

So, answer is (-3, -129)

7 0

3 years ago