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liberstina [14]

3 years ago

13

Nine times a number added to -5 subtracted from twice the sum of nine times a number and two

1 answer:

barxatty [35]3 years ago

4 0

Let's denote a variable to the number as x. Then, let's slowly decipher the verbal descriptions into algebraic expressions:

Nine times a number added to -5: 9x + ⁻5 = 9x - 5
<span>twice the sum of nine times a number and two: 2(9x+2)

Let's subtract the first expression to the second expression:
</span>2(9x+2) - (9x - 5)
<span>Next, let's simplify the expression.

18x + 4 - 9x + 5
9x + 9

The final expression would be 9x + 9, or nine times a number added to nine.

</span>

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Please help. Thank you

love history [14]

Answer:

The length of side x is $x = \sqrt{6}$

Step-by-step explanation:

Pythagorean Theorem:

In a right triangle, with sides a and b, and hypothenuse h, we have that:

$a^2 + b^2 = h^2$

In this question:

The vertical line on the sides means that both are equal, that is, measuring x, so $a = b = x$ .

Hypothenuse is the square root of 12. So $h = \sqrt{12}$

$x^2 + x^2 = (\sqrt{12})^2$

$2x^2 = 12$

$x^2 = \frac{12}{2}$

$x^2 = 6$

$x = \sqrt{6}$

The length of side x is $x = \sqrt{6}$

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2 years ago

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Arlecino [84]

Answer:

80 and 96

Step-by-step explanation:

80 and 96

7 0

3 years ago

Read 2 more answers

Which of the following ratios can from a proportion with 5/6 ? Show your work!

Ludmilka [50]

Answer:

Step-by-step explanation:

5/6 = 14*5/14*65/6 = 5/6

7 0

2 years ago

What is the missing length.

nasty-shy [4]

Answer:

$KS = 12$

Step-by-step explanation:

Given that ∆KLM ~ ∆RSK, $\frac{KL}{KR} = \frac{KM}{KS}$ (similarity theorem)

KL = 65

KR = 65 - 52 = 13

KM = 60

KS = ?

$\frac{65}{13} = \frac{60}{KS}$

Cross multiply

$65*KS = 60*13$

$65*KS = 780$

$\frac{65*KS}{65} = \frac{780}{65}$

$KS = 12$

4 0

3 years ago

There were 724 zombies that attacked a player in Call of Duty. The player killed 65%. How many zombies did the player kill?

kvasek [131]

Answer:

470 zombies

Step-by-step explanation:

To find how many they killed, multiply 724 by 0.65

724(0.65)

= 470.6

Round down to 470, since there can only be a whole number for zombies

So, the player killed approximately 470 zombies

4 0

2 years ago