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3 years ago

Someone plzzz help this is due in 3 hours !!!

Mathematics

1 answer:

deff fn [24]3 years ago

5 0

Answer:

hmmmmm

Step-by-step explanation:

yh about that, id just give up

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Richard and Teo have a combined age of 26 . Richard is5 years older than twice Teo's age. How old are Richard and Teo?

loris [4]

Answer:Teo's age = 7 years ,Richard's age = 19 years

Step-by-step explanation:

Step 1

Let Teo's age be represented as x

Such that Richard 's age = 5 + 2x

and their combined ages equaling 26 can be expressed as

x + 5+ 2x = 26

Step 2 --- SOLVING

x + 5+ 2x = 26

3x+ 5= 26

3x= 26-5

3x= 21

x = 21/3

x = 7

Teo's age = 7 years

Richard's age = 5+2x= 5 + 14= 19 years

8 0

3 years ago

What is root3(root3 - 1)

Alenkasestr [34]

Answer:

3 - root3 or 3 - √3

Step-by-step explanation:

root3(root3 - 1) =
√3(√3 - 1) =
√3(√3) - √3(1) =
√3² - √3 =
3 - √3
3 - root3

4 0

3 years ago

Read 2 more answers

Sally has saved one thousand five hundred cents over nine days from selling lemonade how many dollars does sally have?

KonstantinChe [14]

Answer:

she has saved $5 in the last 9 days because she has saved 500 cents the last 9 days there are 100 cents in a dollar which means she has to save $5

5 0

3 years ago

2. A bicycling club has 58 members, of which 4 are males and the rest are females. What is the ratio of females to males?

IRISSAK [1]

Answer: 54:4

Step-by-step explanation:

6 0

3 years ago

The length of a rectangle is the width minus 8 units. The area of the rectangle is 9 units. What is the length, in units, of the

frez [133]

Length of rectangle is 1 unit

<u>Solution: </u>

Given that

Length of a rectangle is width minus 8 units.

Area of rectangle = 9 square units

Need to calculate the length of rectangle.

Let us assume width of rectangle = x

As Length is width minus 8,

Length of the rectangle = x – 8

$\text{ Area of rectangle }=\text{ width of rectangle }\times \text{ Length of the rectangle }$

$\text{ Area of rectangle }= x\times (x-8)$

$\text { Area of rectangle }=\left(x^{2}-8 x\right)$

As given that area of rectangle = 9 square units

$\begin{array}{l}{\Rightarrow x^{2}-8 x=9} \\\\ {\Rightarrow x^{2}-8 x-9=0}\end{array}$

On solving above quadratic equation for x, we get

$\begin{array}{l}{\Rightarrow x^{2}-9 x+x-9=0} \\\\ {\Rightarrow x(x-9)+1(x-9)=0} \\\\ {\Rightarrow (x-9)(x+1)=0}\end{array}$

When $x-9 =9, x = 9$

When $x + 1 = 0, x = -1$

As width cannot be negative, so considering x = 9

$\text{ Length of rectangle }= x-8 = 9-8 = 1 \text{ unit }$

Hence, Length of rectangle is 1 unit.

5 0

3 years ago