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Nookie1986 [14]
3 years ago
5

What is the simplest form of the expression (14.2a + 9.8b) – (13.1b – 0.2a) – (3.7a + 4.8b)?

Mathematics
2 answers:
Wewaii [24]3 years ago
6 0
<span>(14.2a + 9.8b) - (13.1b - 0.2a) - (3.7a + 4.8b)
</span>14.2a + 9.8b - 13.1b + 0.2a - 3.7a - 4.8b
(14.2a + 0.2a - 3.7a) + (9.8b - 13.1b - 4.8b)
10.7a - 8.1b

deff fn [24]3 years ago
4 0

Answer:

10.7a - 8.1b

Step-by-step explanation:

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The answer is C. (16, 7)

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a frog can jump 2 feet. how many jumps are needed for the frog to cover a distance of at least 13 feet ?
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Wanda has $640 in her checking account. She pays her landlord $75 per week for rent.Which function best models the linear relati
umka21 [38]

Answer:

The function best describe the  linear relationship be y = 640 - 75x.

Step-by-step explanation:

As given

Wanda has $640 in her checking account.

She pays her landlord $75 per week for rent.

Let us assume that the number of weeks be x.

Let us assume that the y reresented the money in the account after x weeks.

Than the function becomes

y = 640 - 75x

Therefore the function best describe the  linear relationship be y = 640 - 75x.


6 0
4 years ago
A positive two-digit number is represented by 10t + u. The sum of the squares of the digits is 26. If the number is decreased by
eimsori [14]
"<span>The sum of the squares of the digits is 26"
</span>10t + u = 26  ---->(1)

<span>"If the number is decreased by the number with its digits reversed, the result is 36"
u - 10t =36 -----> (2)

By subtracting the equation we can find t.
</span>  u+10t = 26)<span>
-(u-10t=36)</span>
______________
0u  +20t = 26 -36
---> 20t = -10
t= -10/20
t= -1/2

Inserting value t in (1)
10t + u = 26 
10(-1/2) + u= 26
-5+u=26
u= 26+5 = 31
<span>
Using u and t in the original expression 10t+u express a positive number

10t+u
= 10(-1/2) +u
= -5 + 31
= 26
----> Proves this statement is true 
</span>"The sum of the squares of the digits is 26"
10t + u = 26 <span>
</span>
5 0
3 years ago
A monument in a park is shaped like a square pyramid. The dimensions are shown in the net. What is the surface area of the monum
vampirchik [111]

The surface area of the monument shaped like a square pyramid is 14 m².

<h3>Area </h3>

Area is the amount of space that is occupied by a two dimensional shape or object.

From the diagram

Area of each triangle = (1/2) * base * height = (1/2) * 2 * 2.5 = 2.5 m²

Area of square = length * length = 2 m * 2 m = 4 m²

Surface area of monument = 4(2.5) + 4 = 14 m²

The surface area of the monument shaped like a square pyramid is 14 m².

Find out more on Area at: brainly.com/question/25292087

5 0
3 years ago
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