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yuradex [85]
3 years ago
12

[Please help] At the mall, Leona bought a T-shirt and a book for a total of $28. The book cost $12. How much did the T-shirt cos

t?
2A) What is the unknown information?


2B) Let x represent the unknown information.Write an addition equation that models the problem.


2C) Solve the equation by writing a related equation and showing the answer.



2D) Answer the question in complete sentence.
Mathematics
1 answer:
podryga [215]3 years ago
8 0

Answer:

the T-shirt cost is $16

Step-by-step explanation:

first, we know the total cost of the shirt and book was $28 so we substract 12 from 28 wich gives us 16 so the cost of the shirt is $16.

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Factor 26r3s + 52r5 – 39r2s4.
algol [13]

Answer:

13r²(2rs + 4r³ - 3s⁴)

Step-by-step explanation:

In equation 26r³s + 52r⁵ - 39r²s⁴;

The GCF of 26, 52, and 39 = 13

The GCF of r³, r⁵ and r² = r²

The GCF of s, (no "s"), and s⁴ = no "s" (Since one of the number doesn't have "s")

Now we can factor out 13r² from all three expressions;

26r³s + 52r⁵ - 39r²s⁴

=> <em>13r²(2rs) + 13r²(4r³) - 13r²(3s⁴)</em>

To factor it all together;

<u>13r²(2rs + 4r³ - 3s⁴)</u>

Hope this helps!

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3 years ago
Which method is better to solve the following equation?
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2 years ago
Drag each expression to show whether it can be used to find the surface area, volume or neither​
Brut [27]

Answer:

Surface area:

2(12\times 6) +  2(6 \times 8) + 2(8 \times 12)

2((12\times 6) +  (6 \times 8) + (8 \times 12)

Volume :

(12 \times 6 \times 8)

Neither:

8(12 \times 6)

2(12 \times 6 \times 8)

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Step-by-step explanation:

Surface area of the cuboid:

The Surface area of the cuboid = 2(lb) +2(bh)  +2(hl)

Where

l =length of the cuboid

b = Breadth of the cuboid

h = height of the cuboid

So ,

The surface area will be

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SA = 432

Volumes of the cuboid:

Volume  = length \times breadth \times height

Volume = (12 \times 6 \times 8)

volume = 576

4 0
4 years ago
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