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3 years ago

What is 2(x+10)=2(3x-8)

Mathematics

2 answers:

Julli [10]3 years ago

7 0

Answer:

x = 9

Step-by-step explanation:

2(x+10)+2(3x)-8 Distribute

2x+20=6x-16 Subtract like terms

20=4x-16 Add 16 on both sides since it negative

36=4x Divide 4 on both sides

x=9

Mrac [35]3 years ago

3 0

Answer:

x=9

Step-by-step explanation:

we can start by using the distributive property

so then

2x+20=6x-16

we now need to move the variables to one side and the numbers to the other

-4x=-36

x=9

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In-s [12.5K]

Answer:

8 hours worked, 64 dollars

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themepark:

5 hours worked, 45 dollars

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working at the themepark earns 5 extra dollars when they work for 5 hours.

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3 years ago

the length of a rectangular picture frame is 3 centimeters less than twice the width. the perimeter is 78 centimeters. find the

Natalka [10]

Let the width be x
width = x
length = 2x - 3

Perimeter = x + 2x - 3 + x + 2x - 3 = 6x - 6

6x - 6 = 78
6x = 78 + 6
6x = 84
x = 14 cm

2x - 3 = 2(14) - 3 = 25cm

The width is 14cm and the length is 25cm

5 0

3 years ago

Please help me on this problem

Rudik [331]

<h2>Answer:</h2>

Total Surface Area = 375 $ft^2$

<h2>Step-by-step explanation:</h2>

You need to find the area of the ceiling, floor, the two rectangle walls and the two trapezoid walls

Area of the ceiling:

c = length * width

c = 9*6.5 = 58.5

Area of the 2 rectangle walls:

w = 2(length * width)

w = 2(9 * 8)

w = 2(72)

w = 144

Area of floor:

f = 9 * 7.5

f = 67.5

Area of the two trapezoids:

$t = 2(h * \frac{a + b}{2})$

a = 6.5

b = 7.5

h = 7.5

$t = 2(h * \frac{a + b}{2})$

$t = 2(7.5 * \frac{6.5 + 7.5}{2})$

$t = 2(7.5 * \frac{14}{2})$

$t = 2(7.5 * 7)$

$t = 2(52.5)$

$t = 105$

Total Surface Area = c + w + f + t

Total Surface Area = 58.5 + 144 + 67.5 + 105

Total Surface Area = 375 $ft^2$

8 0

3 years ago

Showing ALL calculations, whether this statement is valid

choli [55]

Answer:

RM79 608.51

Step-by-step explanation:

First year,

RM505 050.00×5%=RM505 050.00×5/100

=RM25 252.50

second year,

(RM505 050.00+RM25 252.50)×5%=RM530 302.50×5/100

=RM26 515.13

third year,

(RM530 302.50+RM26 515.13)×5%=RM556817.63×5/100

=RM27840.88

three years interest,

RM25 252.50+RM26 515.13+RM27840.88=RM79608.51

I don't know that is R or RM 

if it is R ,sorry

Hope can help!

8 0

3 years ago

Please help this is confusing

Lena [83]

Answer: yeah it makes sense is that 2 to the power of nothing

Step-by-step explanation:

5 0

3 years ago