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Lady bird [3.3K]

3 years ago

5

N + 16 = 9 Please help me need explanation

2 answers:

e-lub [12.9K]3 years ago

6 0

Answer: n = -7

Step-by-step explanation: Move all terms not containing n to the right side of the equation.

Hope this helps you out! ☺

vlabodo [156]3 years ago

5 0

Answer:

n = -7

Step-by-step explanation:

You do cancels and removal out by inverse operation to find the answer.

Step 1: Write out the equation.

n+16=9

Step 2: Subtract both sides by 16 to cancel out the positive 16.

n +<u>16 (-16)</u> = 9 -16

Step 3: After +16-16, 9-16, you shall not have any more operations like (+, -, *, or / )

n = -7

<em>*Note:</em>

<em> n = -7.</em>

<em>2n = -14.</em>

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Ella is a landscape photographer. One weekend at her gallery she sells a total of 52 prints for a total of $2,975. A small paint

rosijanka [135]

<h2>Answer:37 paintings of $50 and 15 paintings of $75</h2>

Step-by-step explanation:

Let $x$ be the number of paintings Ella sells for $ $50$ .

Let $y$ be the number of paintings Ella sells for $ $75$ .

Profit made through $ $50$ paintings is $50x$

Profit made through $ $75$ paintings is $75y$

So,total profit is given by $50x+75y$

It is given that total profit is $ $2975$

So, $50x+75y=2975$ ..(i)

Given that the total number of prints is $52$

So, $x+y=52$ ..(ii)

using (i) and (ii),

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7 0

3 years ago

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there are 680 students and Cassie's High School 40% of the students are taking Spanish how many students are taking Spanish

snow_lady [41]

272

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8 0

3 years ago

HELP ILL GIVE BRAINLIEST

SVETLANKA909090 [29]

Answer:

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Step-by-step explanation:

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Bring the 2 in the denominator of 11/2 to the left hand side of the equation.

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2 years ago

Unoccupied seats on flights cause airlines to lose revenue. Suppose a large airline wants to estimate its average number of unoc

Bingel [31]

Answer:

We need a sample size of at least 719

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

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$0.3\sqrt{n} = 1.96*4.103$

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We need a sample size of at least 719

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3 years ago

Help me with a. b. c. I need help

hammer [34]

Answer:

a) Perimeter = 20.5 Inches

Area is 15 Sq Inches

b) Perimeter is 61.4 Cms

Area is 210 Sq cm

c) Perimeter is 22 yards

Area is 21 Sq Yards

Step-by-step explanation:

a) Perimeter = sum of all the sides

= 8+7.5+5

=20.5

Perimeter = 20.5 Inches

Area of Triangle = $\frac{1}{2} \times height \times Base$

Base = 7.5 In

Height = 4 In

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b) Perimeter = Sum of all the sides

P=13+23+13.4+12

P=61.4

Perimeter is 61.4 Cms

Area of trapezium = $\frac{1}{2} \times height \times (sum \ of \ parallel \ sides)$

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c) Perimeter = Sum of all the sides

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Area of a parallelogram = $base \times height$

$A= 7 \times 3$

$A = 21$

Area is 21 Sq Yards

3 0

3 years ago