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3 years ago

Write a phrase as a algebraic expression.4 times the sum of a number and 20.

Mathematics

1 answer:

djyliett [7]3 years ago

5 0

4(6 + 20)

PLEASE RATE AS THE BRAINLIEST ANSWER! THANK YOU! :)

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Find the perimeter of the shape below and explain your process. <br> Bruh it’s 50 points.

frosja888 [35]

Answer:

The perimeter is 6x+8

Step-by-step explanation:

2(2x+3) +2(x+1)

4x+6+2x+2

6x+8

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2 years ago

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If f(2) =20 and f(3) =10<br>F(4) = ,f(5)=

Arada [10]

F(4)=0 and F(5)= -10

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2 years ago

Find the co-ordinates of the point of trisection of the line joining the points A(1,8) and B(4,2).

Licemer1 [7]

<u>coordinates of the point are (2,6) and (3,4)</u>

Answer:

Solution given:

let the given point be A(1,8) and B(4,2).

P and Q are the two points on AB such that

AP=PQ=QB=k

now

comparing AP and PB

AP=k

PB=2k

ratio of AP and PB = $\frac{1k}{2k}$ = ratio 1:2

now

finding p

for this

$(m_1,m_2)=(1,2)$

For AB

$(x_1,y_1)=(1,8)$

$(x_2,y_2)=(4,2)$

now by using division formula

$(x,y)=(\frac{m_1x_2+m_2x_1}{m_1+m2},\frac{m_1y_2+m_2y_1}{m_1+m2})$

$=(\frac{1*4+2*1}{1+2},\frac{1*2+2*8}{1+2})=(2,6)$

similarly

Q divides AB

Ratio of AQ and QB = $\frac{2k}{1k}$ = ratio 2:1

$(x_1,y_1)=(1,8)$

$(x_2,y_2)=(4,2)$

$(m_1,m_2)=(2,1)$

by using division formula

$(a,b)=(\frac{m_1x_2+m_2x_1}{m_1+m2},\frac{m_1y_2+m_2y_1}{m_1+m2})$

$=(\frac{2*4+1*1}{2+1},\frac{2*2+1*8}{2+1})=(3,4)$

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2 years ago

Aaron can paint a door in 6 h, and Ana can do the same job in 3 h. Working together, how many hours will it take them to paint a

Aloiza [94]

Answer:

4.5 hrs

Step-by-step explanation:

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2 years ago

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If the product of 2 identical numbers is 324,find one of the number

Ilya [14]

let each of the numbers be x :

$x \times x = 324$

${x}^{2} = 324$

$x = \sqrt{324}$

$x = 18$

4 0

3 years ago