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2 years ago

HELP PLEASE GIVING BRAINLIST TO ANYONE WHO ANSWERS

Mathematics

1 answer:

stira [4]2 years ago

5 0

Answer:

7.5

Step-by-step explanation:

SInce 11x-17 is a corrosponding angle to 65, we can make an equation with them.

11x-17=65

Carry over the 17 (add to both sides)

11x= 82

divide 82 by 11

x=7.5

(the answer kept repeating so i rounded it to the nearest tenth)

Hope this helps :)

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The area of a rectangle is 72 square metres. The length of the rectangle is twice the width. Find the width of the rectangle.

Maksim231197 [3]

Answer: Width = 6m

Working:
Find common factors of 72:
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

Work out which ones multiply together to make 72 and as the question states that the length is twice the width, we need to find two numbers that multiply to make 72 and one of the numbers is double the other number.

These numbers would be 6 and 12. (6 x 12 = 72)

Therefore:

Area = 72m²
Width = 6m
Length = 12m

6 0

2 years ago

The value of computer decreases with its age until it is worth nothing a computer that was purchases new for 0 years is worth 22

Georgia [21]

Answer:

$V(x) = -\frac{340}{3}x +2220$

$V(8) = 1313.3$

Step-by-step explanation:

Given

Let x represent years and V represents the value.

So, we have:

$(x_1,v_1) = (0,2220)$

$(x_2,v_2) = (6,1540)$

Solving (a): The linear function

First, we calculate the slope (m)

$m = \frac{v_2 - v_1}{x_2 - x_1}$

This gives:

$m = \frac{1540-2220}{6-0}$

$m = \frac{-680}{6}$

$m = -\frac{340}{3}$

The linear function is calculated using:

$v - v_2 = m(x - x_2)$

Where:

$(x_2,v_2) = (6,1540)$

$m = -\frac{340}{3}$

So, we have:

$v - 1540 = -\frac{340}{3}(x - 6)$

Open bracket

$v - 1540 = -\frac{340}{3}x +\frac{340}{3}* 6$

$v - 1540 = -\frac{340}{3}x +680$

Make v the subject

$v = -\frac{340}{3}x +680+1540$

$v = -\frac{340}{3}x +2220$

So, the function is:

$V(x) = -\frac{340}{3}x +2220$

Solving (b): When x = 8

Substitute 8 for x in $V(x) = -\frac{340}{3}x +2220$

$V(8) = -\frac{340}{3}*8 +2220$

$V(8) = -\frac{340*8}{3} +2220$

$V(8) = -\frac{2720}{3} +2220$

Take LCM

$V(8) = \frac{-2720+2220*3}{3}$

$V(8) = \frac{-2720+6660}{3}$

$V(8) = \frac{3940}{3}$

$V(8) = 1313.3$

<em>Hence, its value after 8 years is 1313.3</em>

3 0

2 years ago

If lisa has 2,134 buttons that needed to be sorted equally into 12 jars.How many buttons will be in each jar.

ch4aika [34]

Answer:

Either 177 or 188 buttons

Step-by-step explanation:

2134/12=177.83

3 0

3 years ago

3. Keenen gets on the train to ride around the park. As he is riding the train the conductorsays that they are going to build a

Nataly [62]

First, we need to get the slope of the equation of the train tracks. We can transform the given equation into the slope-intercept form.
4x +2y = 16
y = -2x +8

The slope of the equation is -2.

A perpendicular line will have the same slope but the opposite sign.
So, the slope of the line of the train crossing is 2. Since, it will pass through the point (8,15), the slope-intercept form can also be used to solve for the equation.
y = mx + b

The slope is 2, so m=2. We solve b by substituting the coordinates.
15 = 2(8) +b
b = -11

The equation is now,
y = -2x - 11

Or it can also be expresses as:
2x - y = 11

7 0

3 years ago

How much liquid will fit in the glass shown? Round your answer to the nearest hundredth.

Lubov Fominskaja [6]

Answer:15

Step-by-step explanation:

5•5.5

8 0

3 years ago