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Lyrx [107]
3 years ago
8

N.) Evaluate the expression (xy)? + 8, when x = 2 and y = 4.

Mathematics
2 answers:
Marta_Voda [28]3 years ago
8 0

Answer:

16

Step-by-step explanation:

im guessing the ? has nothing to do with the equation but

xy is x*y or 2*4 (since the values of x & y were already given) not 24 which is sometimes a common mistake

2*4 is 8

and 8+8= 16 :)

any questions just ask me ♡

kodGreya [7K]3 years ago
4 0

Answer:

16

Step-by-step explanation:

x=2. y=4

following bodmas

2*4=8

  • 8+8=16
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Solve the following system of equations algebraically:<br> 4x - 5y = 18<br> 3x – 2y = 10
fiasKO [112]

Answer:

D

Step-by-step explanation:

Given the 2 equations

4x - 5y = 18 → (1)

3x - 2y = 10 → (2)

Multiplying (1) by 3 and (2) by - 4, then adding will eliminate the x- term

12x - 15y = 54 → (3)

- 12x + 8y = - 40 → (4)

Add (3) and (4) term by term to eliminate x, that is

- 7y = 14 ( divide both sides by - 7 )

y = - 2

Substitute y = - 2 into either of the 2 equations and solve for x

Substituting into (1)

4x - 5(- 2) = 18

4x + 10 = 18 ( subtract 10 from both sides )

4x = 8 ( divide both sides by 4 )

x = 2

solution is (2, - 2 ) → D

8 0
3 years ago
Find the missing terms.<br> 3, _____, _____, 21 (arithmetic)
Rom4ik [11]

Answer:

Hello There!!

Step-by-step explanation:

The answer is 3,9,15,21.

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4 0
2 years ago
Read 2 more answers
15 POINTS!!! (16*4^3*8^8)^5 Find the answer and show work how you got it
777dan777 [17]

Answer:

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Step-by-step explanation:

(16 x 4^3 x 8^8)^ 5

- start by converting it all to a common base

(2^4 x 2^3 x 2^24)^5

- calculate the product, by adding all the powers

(2^34)^5

= 2^170

5 0
3 years ago
Read 2 more answers
The area of the rectangular floor in Tamara's room is 95 5/6 square
White raven [17]
Area of rectangle is width × length
which means area of rectangular floor in Tamara's room = width of room × length of room
-> 95 ⅚ sq feet = 8 ⅓ feet × length of
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->575/6 sq feet = 25/3 feet × length of room
length of room = (575/6)/(25/3)
= 575 × 3/6 × 25)
= 23/2
= 11 ½ feet
8 0
3 years ago
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The students at Midtown Middle school sold flowers as a fundraiser in September and October. In October, they charged $1.50 for
Phoenix [80]
Let the price of flowers in September be x, then (100 + 20)/100 * x = $1.50
120/100 * x = $1.50
1.2x = $1.50
x = $1.50/1.2 = $1.25
The price of flowers in September is $1.25

Total money realised in September = $1.25 x 900 = $1,125
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Total money realised in October = $1.50 x 700 = $1,050
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The class earned more money in September and they earned $30 more than in October.


5 0
3 years ago
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