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Step2247 [10]
3 years ago
11

Someone help me with this ASAP

Mathematics
2 answers:
Archy [21]3 years ago
8 0

Answer:

1:6

3/5×2=6/10

2:14

21÷3=7

2×7=14

gregori [183]3 years ago
3 0

Answer:

Unknown value = 6

Step-by-step explanation:

(3/5) = (x/10)

Cross multiply

5x = 30

divide by 5

x = 6

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A square has the sides length 2k-1 units. An equilateral triangle has the sides of the length k+2 units. the square and the tria
AlladinOne [14]
I think that you assumed that:
2k - 1 = k + 2

However we can't do this, because a square has 4 sides whilst a triangle only has 3 sides. 
This means that we can say
4(2k - 1) = 3(k + 2) 

We multiply by 4 due to 4 sides of the square, and by 3 due to the 4 sides of the triangle.

Lets expand the brackets, and solve it:

4(2k - 1) = 3(k + 2)
8k -4 = 3k + 6
5k -4 = 6    ( subtract both sides by 3x to collect the x values)
5k = 10      (add both sides by 4 to get the x's alone)
k = 2           (divide both sides by 5 to get what just x is)

So k = 2 units
8 0
3 years ago
Simplify the expression 3^-8 x 3^4
ValentinkaMS [17]

Answer:

3⁻⁴

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Exponential Rule [Multiplying]: \displaystyle b^m \cdot b^n = b^{m + n}

Step-by-step explanation:

<u>Step 1: Define</u>

3⁻⁸ × 3⁴

<u>Step 2: Simplify</u>

  1. Exponential Rule [Multiplying]:                    3⁻⁸ ⁺ ⁴
  2. Combine exponents:                                    3⁻⁴
5 0
3 years ago
Find the value of the missing term in this sequence: 48, 41, ___, 27, 20,
Natasha_Volkova [10]

Answer:

34

Step-by-step explanation:

I count up with my brain

5 0
3 years ago
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Polygons with 3 4 5 and 6 sides are shown please help
ANEK [815]
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6 0
3 years ago
Solve for a a/22 = -4
Flura [38]

Answer:

a=-88

Step-by-step explanation:

do -4*22=-88

meaing a =-88 becuase

-88/22=-4

8 0
4 years ago
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