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Flauer [41]
3 years ago
14

Use elimination to solve each system.

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
7 0

Answer:

$3 and $2

Step-by-step explanation:

let p represent popcorn and d drinks , then

2p + 3d = 12 → (1)

3p + 5d = 19 → (2)

multiplying (1) by 3 and (2) by - 2 and adding will eliminate p

6p + 9d = 36 → (3)

- 6p - 10d = - 38 → (4)

add (3) and (4) term by term to eliminate p

0 - d = - 2

- d = - 2 ( multiply both sides by - 1 )

d = 2

substitute d = 2 into either of the 2 equations and solve for p

substituting into (1)

2p + 3(2) = 12

2p + 6 = 12 ( subtract 6 from both sides )

2p = 6 ( divide both sides by 2 )

p = 3

Popcorn costs $3 and a drink costs $2

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3 years ago
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Varvara68 [4.7K]

Answer:

<h2>49</h2>

Step-by-step explanation:

Use PEMDAS:

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

==============================================

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5 0
3 years ago
Help me with 26,25,24
nexus9112 [7]
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4 0
3 years ago
Read 2 more answers
If B(-5,8) is rotated about the origin by 180°, what are the new x and y coordinates for B'?
gladu [14]

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Step-by-step explanation:

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8 0
3 years ago
HELP MEE ASAP PLSSSS ♥
Oksanka [162]

Step-by-step explanation:

you add

Hours. Minutes

5. 48

+7. 78

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12. 126

Then 126÷60 minutes =2hours 6mins

12hrs+2hrs=14hrs

Answer=14hours 6minutes

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