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3 years ago

Which equation represents the sentence?

Mathematics

1 answer:

Pachacha [2.7K]3 years ago

7 0

It would be 12+n=4n

The sum (+) of 12 and a number (n) is (=) 4 times a number (4n)

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For their homecoming parade, the students of U-Math have created a colorful banner, 57 meters in length, that is made of two

BartSMP [9]

Answer:

$Length\ of\ the\ long\ piece=40\ meters\\\\Length\ of\ the\ short\ piece=17\ meters$

Step-by-step explanation:

Let be "s" the length in meters of the short piece and "l" the lenght in meters of the long piece.

Set up a system of equations:

$\left \{ {{s+l=57} \atop {s=l-23}} \right.$

Apply the Substitution Method to solve the system. Substitute the second equation into the first equation and solve for "l":

$(l-23)+l=57\\\\2l=80\\\\l=\frac{80}{2}\\\\l=40$

Susbstitute the value of "l" into the second equation in order to find the value of "s". This is:

$s=40-23\\\\s=17$

6 0

3 years ago

Can somebody help me??

Dominik [7]

Answer:

1. -72

2. -64

Step-by-step explanation:

it is increasing by 4 so,

-76, -72, -68, -64, -60, -56.

4 0

3 years ago

Someone pleasee help me with this freaking IXL.

Norma-Jean [14]

The answer is 1761 1/2 (1761.5 in decimal form)

6 0

3 years ago

Solve the given equation

AlexFokin [52]

Eliminate the fractions by multiplying by least common multiple.
4,9,12 all go into 36 evenly. Multiply entire equation by 36.

36/4 = 9
36/9 = 4
36/12 = 3

New equation looks like:
$9(w-1) +4(w+1) = -3(w+1) \\ \\ 9w -9 +4w +4 = -3w -3 \\ \\ 9w +4w+3w = -3 +9 -4 \\ \\ 16w = 2 \\ \\ w = \frac{2}{16} = \frac{1}{8}$

4 0

3 years ago

Can someone please help me with this 7+9x(3+8)=

Semenov [28]

Answer:

99x + 7

hope this helps:)

4 0

3 years ago