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2 years ago

Could someone please answer this question

Mathematics

1 answer:

polet [3.4K]2 years ago

8 0

Its D, because the 40% were licensed drivers and the 37%were probably just drivers without their license.

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Twice the sum of a number and 8 is the same aa the difference of 3 and the number. Find the equation that could be used to find

Nezavi [6.7K]

Answer:

f your number is x, then the difference between that number and 8 would be x-8. Twice that is 2(x-8)

Three times the sum of the number and 3 would be 3(x+3). So, you get the equation:

2(x-8)=3(x+3)

2x-16=3x+9

x=-25

5 0

2 years ago

What is the slope of the line that contains the points (-4,2) and (6,-3)?-

schepotkina [342]

Answer:

Step-by-step explanation:

the formula is $\frac{y_{2}-y_{1} }{x_{2} -x_{1}}$

When we plug that in we get $\frac{-3-2}{6- (-4)} = \frac{-5}{10} = -\frac{1}{2}$

Hope this helps!

8 0

2 years ago

Two boats leave the same place at the same time. The first boat heads due north at 10 kilometers per hour. The second boat heads

Maksim231197 [3]

Answer:

18.87 km/hr

Step-by-step explanation:

First boat is heading North with a speed of 10 km/hr.

Second boat is heading West with a speed of 16 km/hr.

Time for which they move = 2.5 hours

To find:

The speed at which the distance is increasing between the two boats.

Solution:

Let the situation be represented by the attached diagram.

Their initial position is represented by point O from where they move towards point A and point B respectively.

$Distance = Speed \times Time$

$Distance\ OA = 10 \times 2.5 = 25\ km$

$Distance\ OB = 16 \times 2.5 = 40\ km$

We can use Pythagorean Theorem to find the distance AB.

AB is the hypotenuse of the right angled $\triangle AOB$ .

According to Pythagorean theorem:

$\text{Hypotenuse}^{2} = \text{Base}^{2} + \text{Perpendicular}^{2}\\\Rightarrow AB^{2} = OA^{2} + OB^{2}\\\Rightarrow AB^2 = 25^2 + 40^2\\\Rightarrow AB^2 = 2225^2\\\Rightarrow AB^2 \approx 47.17\ km$

The speed at which distance is increasing between the two boats is given as:

$\dfrac{47.17}{2.5} \approx 18.87\ km/hr$

4 0

2 years ago

Help me please!!!<br><br><br>..<br>

12345 [234]

Step-by-step explanation:

HERE,

as,it is a right angle triangle,

x= $\tt{\sqrt{8^2+6^2} }$

$\tt{ x=\sqrt{64+36} }$

$\tt{ x=\sqrt{100} }$

$\tt{x=10km. }$

4 0

2 years ago

Jovana is inviting 9 friends to a party each friend wants 7 cookies and each box has 12 cookies how many boxes should Jovana get

gulaghasi [49]

Answer:

3boxes

Step-by-step explanation:

1st we should know the number of cookies

7*5=35

Divide the total of cookies to cookies per box 35/12=2 11/12

2 boxes and 11 cookies remaning (they need an extra box)= 3 boxes

8 0

2 years ago