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nekit [7.7K]
3 years ago
12

Solve the equation: -2x(x+8)+24=11-3x

Mathematics
2 answers:
Murrr4er [49]3 years ago
8 0
X=4 I think I’m not sure
aleksklad [387]3 years ago
5 0

Answer:

x=3

Step-by-step explanation:

-2(x+8)+24=11-3x

First distribute.

-2x-16+24=11-3x

Then combine like terms.

-2x+8=11-3x

Add 3x to both sides.

x+8=11

Subtract 8 from both sides.

x=3

Hope this helps!! :P

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nikitadnepr [17]

Answer: 320 g

Step-by-step explanation:

We can set up a ratio.

Let the amount of oats equal to x.

18/240 = 24/x

We can now cross multiply.

18x = 5760.

x = 320 g

4 0
2 years ago
Read 2 more answers
Base area:12.5m^2;height:1.2m
lilavasa [31]
? Ummm What is the question???
8 0
2 years ago
An educational psychologist wishes to know the mean number of words a third grader can read per minute. She wants to make an est
MrRa [10]

Answer:

<em> 85% level of the confidence interval is</em>

<em>(26.337, 26.662)</em>

Step-by-step explanation:

<u><em>Explanation</em></u>:-

Given the size of the sample 'n' = 295

Mean of the sample x⁻ = 26.5

The Standard deviation of the Population = 2.7

85% level of the confidence interval is determined by

(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })

Critical value Z₀.₁₅ = 1.036

<em> 85% level of the confidence interval is determined by</em>

(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })

(26.9 -1.036 \frac{2.7}{\sqrt{295} } , 26.5 + 1.036 \frac{2.7}{\sqrt{295} })

( 26.5 - 0.1628 , 26.5+0.1628)

(26.3372,26.6628)

7 0
3 years ago
Adelaide paid $35 for a manicure and gave the manicurist a 20% tip How much money did Adelaide give her manicurist
seropon [69]
<span><u><em>The correct answer is:</em></u>
$42.

<u><em>Explanation:</em></u>
The best way to find a total bill including tip (or tax if that is what you are looking for - it is found the same way), is to multiply the original total by 1 + the percentage of the tip.

Since the percentage is 20%, we add 0.20 to 1 to get 1.20.
Now we multiply that by the original cost to get the final answer.
1.20*35 = 42</span>
3 0
2 years ago
Read 2 more answers
If f(x) = 3x - 2 and g(x) = 2x + 1, find (f+g)(x).
jeka57 [31]

Answer:

A

Step-by-step explanation:

(f + g)(x) = f(x) + g(x)

f(x) + g(x)

= 3x - 2 + 2x + 1 ← collect loke terms

= 5x - 1 → A

5 0
3 years ago
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