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3 years ago

9

What are the solutions to the system of equations?

1 answer:

DENIUS [597]3 years ago

3 0

The answer is definitely C

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Trinity collected 2,400 grams of pennies in a fundraiser. Each penny has a mass of 2.5 grams. How much money did Trinity raise?

sp2606 [1]

Answer:

960

Step-by-step explanation:

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3 years ago

Is this a 3-4th fraction

mezya [45]

Answer:

The clock hand made a 90 degree turn. It is not a 3/4 fraction.

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3 years ago

Which expressions are equivalent to the expression 7(5 + m) - 8?

Akimi4 [234]

Answer:

<u>2</u><u>7</u><u> </u><u>+</u><u> </u><u>7</u><u>m</u>

Step-by-step explanation:

$7(5 + m) - 8$

open the bracket:

$= 35 + 7m - 8 \\ = 27 + 7m$

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3 years ago

6^2r=800 round it to the nearest hundreth

kogti [31]

Question: solve for r: 6 ^ (2r) = 800

Answer: 1.87

Step-by-step explanation:

6 ^ (2r) = 800

log(6 ^ (2r)) = log(800)

2r log(6) = log(800)

r = log(800) / (2 log(6))

r = 1.86537641979

round

r = 1.87

log can be any logarithm function.

6^(2×1.86) = 784.734328546

6^(2×1.87) = 813.365367336

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3 years ago

Which expression represents the phrase "three times the sum of a number and 4"?

Alexxandr [17]

The answer is D. 3(x+4)

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3 years ago