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Brums [2.3K]
2 years ago
9

Oday, everything at a store is on sale. The store offers a 20% discount.

Mathematics
1 answer:
belka [17]2 years ago
6 0

Answer:

A=14.4 dollars

B= x = regular price x discount then subtract the regular price with the discount

C=21.6 dollars

Step-by-step explanation:

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balandron [24]

Answer:

The square JKLM is a square with 4 right angles

It is a parallelogram

Step-by-step explanation:

3 0
3 years ago
Use the expression 8a + 16c.
irakobra [83]

Answer:

PA) 8

PB) 45

Step-by-step explanation:

PA) Find the prime factors of each term in order to find the greatest common factor (GCF).

8

PB)

Step 1:

(8 x 5) + (16 x -1)

Step 2: Multiply

40 + 15

Step 3: Add

45

5 0
3 years ago
Solve |7h+ 1| = |3h - 7| for h.
Scorpion4ik [409]

Answer:

h=-41/2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Two planes are 1380 miles apart and traveling toward each other. One plane is traveling
vaieri [72.5K]

Answer: plane 1: 420 mph; plane 2: 500 mph

Step-by-step explanation:

This is a physics exercise, but in order to solve this problem, you need to identify both planes first:

Let's call the plane 1 speed X

V1 = X

And V2 would be:

V2 = V1 + 80 = X + 80

If we combine both speeds:

V = V1 + V2 = X + X + 80 = 2X + 80

Now that we have an expression for the combined speed, let's see the rest of the data:

Distance: d = 1380 mile

Time: t = 1.5 h

We also know that the formula to get speed is:

V = d/t

We have the combined speed, so, let replace it in the above formula to solve for X:

2X + 80 = 1380/1.5

2X + 80 = 920

2X = 920 - 80

2X = 840

X = 840/2

X = V1 = 420 mph

We have V1, so to get V2:

V2 = 420 + 80 = 500 mph  

8 0
2 years ago
Select the correct product.
vfiekz [6]
The correct answer is:  [A]:  " 2x³  +  7x² + 12x − 8 " .
______________________________________________________

Explanation:
__________________________________________
Given:  
__________________________________________
" (x² + 4x + 8) (2x − 1) "  ;  Find the product: 

↔  " (2x − 1) (x² + 4x + 8) "  ; 
__________________________________________

Note:  " (a + b) (c + d + e) = ab + ad + ae + bc + bd + ae " .
__________________________________________

  →  " (2x − 1) (x² + 4x + 8) = 

      (2x * x²) + (2x * 4x) + (2x *8)  + (-1 * x²) + (-1 * 4x) + (-1 * 8) ; 

 =    2x³ + 8x² + 16x + (-1x²) + (-4x) + (-8) ; 

=     2x³ + 8x² + 16x − x² − 4x − 8) ; 

→ Combine the "like terms" :

        + 8x² − x² =  + 7x² ; 

        + 16x − 4x =  + 12x ; 
_______________________________________________________
And rewrite the expression:
_______________________________________________________
   →  " 2x³  +  7x² + 12x − 8 " ;

   → which is:  Answer choice:  [A]:  " 2x³  +  7x² + 12x − 8 " .
_______________________________________________________
7 0
3 years ago
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