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2 years ago

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Algebra...George bought 2 identical couches and 3 identical chairs. A couch cost twice as much as a chair. He spent $270 more on

th ecouches than on the chairs. How much did he spend altogether

1 answer:

loris [4]2 years ago

8 0

Answer:

$1890

Step-by-step explanation:

x= couches

y=chair.

x=2y

2x=3y+270

2(2y) or 4y=3y+270

y=270

x=540

2(540)+3(270)=1890.

Hope this helps :D

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∠ABC and ∠DBC are complementary angles. If ∠ABC=6x+13 and ∠DBC=4x−3 what is the value of x?

Natalka [10]

Answer:

x = 8

Step-by-step explanation:

Complimentary angles are angles that add up to 90 degrees. If ABC and DBC are complimentary, then when added together, it equals 90 degrees.

ABC + DBC = 90

6x+13+4x−3 = 90

10x+10 = 90

10x = 80

x = 8

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2 years ago

Which is equivalent to ?

Rzqust [24]

I do not see an illustration.

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2 years ago

A TV that usually sells for $174.45 is on sale for 15% off. If sales tax on the TV is 8%, what is the price of the TV, including

nekit [7.7K]

Answer:

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Step-by-step explanation:

15% of 174.45 = 26.16

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148.28 + 11.86 = 160.14

5 0

2 years ago

Need help asap need it thenext few minutes

pantera1 [17]

Answer:

Correct Option is d $(x+3)^2 = 11$

Step-by-step explanation:

For completing the square our equation should be in the form of $a^2 +2ab + b^2 = (a+b)^2$

In the given equation we have:

$x^2 +6x -2\\x^2 + 2(x) (?) +(?)^2 = 2\\for\,\, making\,\, 6x\,\, 2*x*3=6x \\so, \,\,we\,\, can\,\, add\,\, and\,\, subtract\,\, (3)^2 \,\,on\,\, both\,\, sides\\x^2 + 2(x) (3) +(3)^2 -(3)^2= 2\\(x+3)^2 -9 =2\\(x+3)^2 =2+9\\(x+3)^2 = 11$

Correct Option is d $(x+3)^2 = 11$

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2 years ago

What is the surface area of the prism?

andrey2020 [161]

Ok so we have 3 rectangles and 2 triangles
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24 times 20+15 times 20+15 times 20+1/2 times 9 times 24+1/2 times 9 times 24=1296
answer is A

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3 years ago