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Natali5045456 [20]

3 years ago

8

Francis earned the following scores on his math quizzes: 86, 84, 90. Jillian earned the following scores on her math quizzes: 84

, 90, 86.Who earned a greater total score? Which addiction property can you use to find your answer?

1 answer:

vitfil [10]3 years ago

7 0

Answer:

3

(

2

+

5

)

=

−

7

(

2

−

1

0

)

+

5

{\color{#c92786}{3(2x+5)}}=-7(2x-10)+5

3(2x+5)=−7(2x−10)+5

6

+

1

5

=

−

7

(

2

−

1

0

)

+

5

Step-by-step explanation:

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38m = 434 + 1102
38m = 1536....divide both sides by 38
m = 1536/38
m = 768/19 or 40 8/19

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Using appropriate properties, find the value of 249² - 248²

Lady_Fox [76]

Answer:

$\boxed{\bold{\huge{\boxed{497}}}}$

Step-by-step explanation:

=> $\sf 249^2 - 248^2$

<u>Using Formula</u> $\sf a^2 - b^2 = (a+b)(a-b)$

<u><em>Where </em></u>

a = 249

b = 248

=> $\sf (249+248)(249-248)$

=> $\sf (497)(1)$

=> 497

3 0

3 years ago