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Inessa05 [86]
3 years ago
14

For which value of x is the equation 3(3 + x) = 15 + x true? A) 1 B) 2 C) 3 D) 4

Mathematics
2 answers:
Maru [420]3 years ago
4 0

Answer:

c

Step-by-step explanation:

natulia [17]3 years ago
3 0

Answer:

C

Step-by-step explanation:

3(3 + x) = 15 + x

Open bracket

9 + 3x = 15 + x

Collecting like terms

3x - x = 15 - 9

2x = 6

Dividing by 2

x = 6/2

x = 3

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Let's deconstruct the equation.

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You want to isolate K, so you multiply by 8 for both sides (since 8 x 1/8 = 1)
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K=56
6 0
3 years ago
A triangle has two sides of length 20 and 11. What is the largest possible whole-number length for the third side?
charle [14.2K]

Answer:

30

Step-by-step explanation:

20+11=31

It can't be exactly 31 but it can be any number less than 31, so the nearest whole number down is 30

8 0
2 years ago
I GIVE BRAINLIEST!!!
Doss [256]

Answer: I'm sorry I don't know but il try and calculate the answer for you

Step-by-step explanation:

8 0
3 years ago
Please help me out!​
melisa1 [442]

Answer:

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7 0
2 years ago
Does someone mind helping me with this problem? Thank you!
Jet001 [13]

Answer:

875 ft²

Step-by-step explanation:

Finding area of similar rectangles:

Scale factor = EF : AB

                    = 25 : 5

                    = 5 : 1

\sf \dfrac{Area \ of \ bigger \ rectangle}{Area \ of \ smaller \ rectangle}= (Scale \ factor)^2

\dfrac{Area \ of \ bigger \  rectangle}{35} =\left(\dfrac{5}{1}\right)^2

\text{Area of bigger rectangle = $\dfrac{25}{1}*35$}

Area or rectangle EFGH = 875 ft²

4 0
2 years ago
Read 2 more answers
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