3 years ago

In the U.S. presidential election of 1864, Abraham Lincoln received 2,218,388 of the 4,031,887 votes. About

Mathematics

1 answer:

Lesechka [4]3 years ago

7 0

I don’t know pay attention in class and I’m not being mean JK it’s 2,251,926

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Solve l 3x-7 l = 2

Lelechka [254]

Answer:

1) Solutions are x = 3 and x = 5/3

2) Solution are x ≤ 13/2 and x ≤ -3/2

Step-by-step explanation:

1) Given absolute inequality,

|3x-7| = 2

⇒ 3x - 7 = ± 2

⇒ 3x = 7 ± 2

$\implies x=\frac{7\pm 2}{3}$

$x=\frac{7+2}{3}\text{ or }x=\frac{7-2}{3}$

$\implies x = 3\text{ or }x=\frac{5}{3}$

2) l 2x-5 l ≤ 8

⇒ 2x-5 ≤ ±8

⇒ 2x ≤ 5 ± 8

$\implies x\leq \frac{5\pm 8}{2}$

$x\leq \frac{5+8}{2}\text{ or }x\leq \frac{5-8}{2}$

$\implies x \leq \frac{13}{2}\text{ or }x\leq-\frac{3}{2}$

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The answer is 45 because 45-15=30, therefore x=45.

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(5x – 3y) (3x + 4y)

MariettaO [177]

Answer:

$\boxed{\red{15 {x}^{2} + 11xy - 12 {y}^{2}}}$

Step-by-step explanation:

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Last year, there were 148 pies baked for the bake sale. This year, there were c pies baked. Using c, write an expression for the

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$\huge{\boxed{c+148}}$

We need to find the number of pies baked in years 1 and 2.

There were 148 pies baked in year 1. $148$

There were $c$ pies baked in year 2. $148+c$

Rearrange the terms so the variable is first. $c+148$

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