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3 years ago

Expanded form of 3(4x+5y)

Mathematics

1 answer:

PIT_PIT [208]3 years ago

3 0

= 12x + 15y because 3 x 4x = 12x and 3 x 5y = 15y

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lesya692 [45]

Answer:

8000in³

Step-by-step explanation:

20³=20*20*20=8000

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3 years ago

Carly bought one one yard of fabric, convert the<br> measurement to centimeters.

sergiy2304 [10]

Answer:

the fabric is 91.44 centimeters long

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3 years ago

David y Almudena tienen entre los dos 225 euros. Calcula cuánto dinero tiene cada uno si Almudena posee 75 euros más que David.

Misha Larkins [42]

David and Almudena have between the two 225 euros. Calculate how much money each has if Almudena has 75 euros more than David.

For this case we propose a system of equations:

x: Let the variable that represents Almudena's amount of money

y: Let the variable that represents David's amount of money

According to the statement we have:

$x + y = 225\\y + 75 = x$

Substituting the second equation into the first:

$y + 75 + y = 225\\2y + 75 = 225\\2y = 225-75\\2y = 150\\y = \frac {150} {2}\\y = 75$

We find the value of the variable x:

$x = 75 + 75 = 150$

Almudena has 150 euros

David has 75 euros

Answer:

Almudena has 150 euros

David has 75 euros

3 0

4 years ago

PLEASEE HELP ASAP!!!!!

horrorfan [7]

For A, you take 70% of 421,000 and subtract that from 421,000. You should solve like this: 421,000 - (0.7 x 421,000).

For B, you take 40% of 31.50 and add it to 31.50. (31.50 + (31.50 x 0.4).

This is all I can give for now. Glad to help you!

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4 years ago

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mixas84 [53]

Answer:

student a because the line has a negative slope not a positive slope

Step-by-step explanation:

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2 years ago

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