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OverLord2011 [107]
3 years ago
11

Represent the following sentence as an algebraic expression, where ‘’ a number’’ is the letter x

Mathematics
2 answers:
spayn [35]3 years ago
5 0

Answer:

n = x * 3

Step-by-step explanation:

n is your "number"

julia-pushkina [17]3 years ago
4 0

Answer:

3 × x

Step-by-step explanation:

"a number" = x

"times" = multiplication = ×

3 × x

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Find the equation is standard form, of the line passing through he points (2,-3) and (4,2)
Simora [160]

The point slope formula:

y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}

(2,\ -3)\to x_1=2,\ y_1=-3\\(4,\ 2)\to x_2=4,\ y_2=2

Substitute:

m=\dfrac{2-(-3)}{4-2}=\dfrac{5}{2}=2.5\\\\y-(-3)=2.5(x-2)\\\\y+3=2.5x-5\ \ \ \ |+5\\\\y+8=2.5x\ \ \ \ \ \ |-y\\\\2.5x-y=8\ \ \ \ \ |\cdot2\\\\\boxed{5x-2y=16}

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3 years ago
what is this have no clue of how to do it ? ? n+31.53 =62.4 and this one to 9.2+n+8.4=20.8 please help !
mihalych1998 [28]
Ok so to solve to first one u do this:

62.4 - 31.53, which gives u 30.87. and then u add 30.87 and 31.33, and u get 62.4

for the second one u do the same thing.
4 0
3 years ago
Read 2 more answers
Maria cut a trapezoid out of a large piece of felt. Tha trapezoid has a height of 9 cm and bases of 6 cm and 11 cm. What is the
stiks02 [169]
The area of Marcia's trapezoid felt is 76.5 sqaured centimeters
7 0
3 years ago
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At the bake sale the students earned $48.81. If there were 3 students how much did each student earn
Contact [7]

Answer:

Each student earned $16.27.

Step-by-step explanation:

48.81 / 3 = 16.27

5 0
3 years ago
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Find the surface area of a pentagon-based pyramid with slant height of 11 m.
Ronch [10]

Answer:

108.75 square meter.

Step-by-step explanation:

<h3>Surface area of pentagon based pyramid:</h3>

   \sf \boxed{\text{\bf Surface area of pentagonal pyramid = $ \bf \dfrac{5}{2}*b*(a + s)$}}

  Here,  b is the base length of the pyramid. b = 3 m

              a is the apothem of the pyramid. a = 3.5 m

              s is the slant height of the pyramid. s = 11 m

     \sf Surface \ area = \dfrac{5}{2}*3*(11 + 3.5)

                         \sf = \dfrac{5}{2}*3*14.5\\\\     = 108.75 \ m^2

5 0
1 year ago
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