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3 years ago

Please help Find the percentage of each of the following quantities

Mathematics

1 answer:

makvit [3.9K]3 years ago

7 0

Answer:

1. 48

2. 96

3. 2.16

4.252

Step-by-step explanation:

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Hey i need help solving these and not just the answer i really would like to know how

Mars2501 [29]

Hello,

1)
Let's put some name of vertex:
A with angle A=45°
B with angle B=90°
C The 3 vertex of the triangle of left.
AC=9 , y=AB=BC
With Pythagore, we can say: y²+y²=9²==>2y²=81===>y=9/√2=9√2/2

The other triangle is BDC: cos(60°)=x/y==>x=y*1/2=9√2/4

2)
Let's give some names:

A with angle A=60°
B with angle B=90
C the 3th vertex of the left triangle.
AB=10, BC=y
tan 60°=y/10=sin(60°)/cos(60°)=(√3/2)/(1/2)=√3==>y=10√3

D is the 3 th vertex of the right triangle.
We use Pythagore: y²+y²=x²
x²=2*(10√3)²===>x=10*√6

3 0

3 years ago

(13x+2)+(5x+24)+(7x+7)+(8x-3)=360 X=

OleMash [197]

Answer:

x=10

Step-by-step explanation:

group like terms

13x+5x+7x+8x+24+7+2+-3=360

33x+30=360

33×=360-30

33x=330

divide both sides by 33

x=10

4 0

3 years ago

3 is less than the sum of a number s and 4

monitta

3 is less than the sum of any positive number added with 4

7 0

3 years ago

Find the range and interquartile range of the data.

shutvik [7]

I believe the range is the middle number so start from 63 then 46 then 53 then go back and forth until you get the middle number now after you get the middle number for the IQR add up both sides of the middle and / by the all the number on the left and right of the middle number

4 0

3 years ago

Help help help help

goblinko [34]

Answer:

$\displaystyle m=\frac{-1}{2}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Reading a Cartesian plane
Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (4, 1)

Point (0, 3)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m=\frac{3-1}{0-4}$
[Fraction] Subtract: $\displaystyle m=\frac{2}{-4}$
[Fraction] Simplify: $\displaystyle m=\frac{-1}{2}$

4 0

3 years ago

Please help Find the percentage of each of the following quantities​

Please help Find the percentage of each of the following quantities