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murzikaleks [220]
3 years ago
12

Please help I’m stuck

Mathematics
2 answers:
solong [7]3 years ago
8 0

Answer:

23

hope it helps u :)

Step-by-step explanation:

2x+13

x=5

=2×5+13

=10+13

=23

anyanavicka [17]3 years ago
6 0

Answer:

23

Step-by-step explanation:

When I was first introduced to algebra, One thing that had me stumped for the longest time is terms like "2x".  This is because nobody explained to me that saying "2x" and similar terms implies a multiplication.  so "2x" actually means "2 × x".  I only mention this because I thought maybe it would help.

To solve it then, all we need to do then is think of "x" as meaning five, and it being multiplied by 2

We're given this:

2x + 13

which you can also read as this:

2 \times x + 13

We're told x equals five, so we can say:

2 \times 5 + 13

Remember when solving this, that multiplication and division <em>always</em> come before addition and subtraction, so let's do the multiplication:

10 + 13

and then add it up:

23

So the final answer is twenty-three.

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Paul owns a mobile wood-fired pizza oven operation. A couple of his clients complained about his dough at a recent catering, so
Makovka662 [10]

Answer: B. Do not reject H0, we cannot conclude the proportion of customer complaints is more for the old dough

Step-by-step explanation:

This is a test of 2 population proportions. Let 1 and 2 be the subscript for the old and the new dough players. The population proportions of customer complaints with the old and new dough would be p1 and p2

P1 - P2 = difference in the proportion of customer complaints with the old and new dough.

The null hypothesis is

H0 : p1 ≥ p2

pm - pw ≥ 0

The alternative hypothesis is

Ha : p1 < p2

p1 - p2 < 0

it is a left tailed test

Sample proportion = x/n

Where

x represents number of success(number of complaints)

n represents number of samples

For old dough

x1 = 6

n1 = 385

P1 = 6/385 = 0.016

For new dough,

x2 = 16

n2 = 340

P2 = 16/340 = 0.047

The pooled proportion, pc is

pc = (x1 + x2)/(n1 + n2)

pc = (6 + 16)/(385 + 340) = 0.03

1 - pc = 1 - 0.03 = 0.97

z = (Pm - Pw)/√pc(1 - pc)(1/nm + 1/nw)

z = (0.016 - 0.047)/√(0.03)(0.97)(1/385 + 1/340) = - 0.031/√0.00553857907

z = - 0.42

Since it is a left tailed test, we would find the p value for the area to the left of the z score. From the normal distribution table,

p value = 0.337

For a 95% confidence level, the significant level, alpha is

1 - 0.95 = 0.05

Since 0.05 < 0.337, we would accept the null hypothesis

Therefore, Do not reject H0, we cannot conclude the proportion of customer complaints is more for the old dough

7 0
3 years ago
Round each number to the nearest tenth.
GalinKa [24]
it's A because you put your Decimals in order and round the nearest tenths.
4 0
3 years ago
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kondaur [170]

Answer:

2

Step-by-step explanation:

5 0
3 years ago
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Bess [88]

Answer:

10\sqrt{2}

Step-by-step explanation:

\sqrt{8} -3\sqrt{32} +4\sqrt{50}

We can try to simplify first.

2\sqrt{2}-12\sqrt{2} +20\sqrt{2}

Now we can combine the like terms:

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3 0
2 years ago
100 POINTS!!!!! AND BRAINLIEST!!!!!!
Aleksandr-060686 [28]

Answer:

x = 6/3y+1

Step-by-step explanation:

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Step 1: Factor out variable x.

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Step 2: Divide both sides by 3y+1.

x(3y+1) / 3y+1

so x = 6/3y+1

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