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3 years ago

A fifth grade class sets up 418 chairs for a graduation ceremony. Each row has 22 chairs.

Mathematics

1 answer:

Gala2k [10]3 years ago

4 0

Answer:

Step-by-step explanation: all you have to do is divide 418 by 22, and u can use long division...

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What is the slop of a line perpendicular to the line whose equation is 4x+6y=108. Reduce your answer

ahrayia [7]

Answer:

The slope of a line perpendicular to the line whose equation is 4x+6y=108 is $\frac{3}{2}$

Solution:

Given, line equation is 4x + 6y = 108.

We have to find the slope of the line which is perpendicular to the given line equation.

We know that, product of slopes of perpendicular lines equals to – 1

So, now, let us find the slope of the given line equation.

$\text { Slope of a line }=\frac{-x \text { coefficient }}{y \text { coefficient }}=\frac{-4}{6}=\frac{-2}{3}$

Now,

slope of given line $\times$ slope of its perpendicular line = -1

$\frac{-2}{3} \times slope of perpendicular line = -1$

$\text { Slope of perpendicular line }=-1 \times \frac{3}{-2}=\frac{-3}{-2}=\frac{3}{2}$

Hence, the slope of the perpendicular line is $\frac{3}{2}$

3 0

3 years ago

Sam is saving for a guitar. He already has $50 saved and intends to save $30 each week. Sam found a guitar that costs $410. Afte

maxonik [38]

Answer:

12 weeks

Step-by-step explanation:

30 x 12 = 360

which equals 12 weeks in this case and 360 + 50 equals 410 the 50 came from the 50 he already had

I hope this helps!!

4 0

3 years ago

If you make 25 minutes of long distance calls per month,what will it cost

Ghella [55]

It depends how much your phone plan is but expect to pay between 5¢ and $1.40 per minute.

3 0

4 years ago

What number is 50% of 2

AlladinOne [14]

It's 1. 50% means multiple by 1/2 or .5 (or you could divide by 2). So 2 x .5 is just 1.

8 0

4 years ago

Read 2 more answers

Can u guys help me with this problem

netineya [11]

Answer:

$-0.7$ or $-\frac{7}{10}$

Step-by-step explanation:

$-0.75-(-\frac{2}{5})+0.4+(-\frac{3}{4})$

The opposite of $-\frac{2}{5}$ is $\frac{2}{5}$

$-0.75 + \frac{2}{5} +0.4 - \frac{3}{4}$

Convert decimal number −0.75 to fraction $-\frac{75}{100}$ .

Reduce the fraction $-\frac{75}{100}$ to lowest terms by extracting and canceling out 25.

$-\frac{3}{4} + \frac{2}{5}+0.4-\frac{3}{4}$

Least common multiple of 4 and 5 is 20. Convert $-\frac{3}{4}$ and $\frac{2}{5}$ to fractions with denominator 20.

$-\frac{15}{20}+ \frac{8}{20} +0.4 - \frac{3}{4}$

Since $-\frac{15}{20}$ and $\frac{8}{20}$ have the same denominator, add them by adding their numerators.

$\frac{-15 +8}{20} +0.4-\frac{3}{4}$

Add -15 and 8 to get -7

$-\frac{7}{20}+0.4-\frac{3}{4}$

Convert decimal number 0.4 to fraction $\frac{4}{10}$ . Reduce the fraction $\frac{4}{10}$ to lowest terms by extracting and canceling out 2.

$-\frac{7}{20}+\frac{2}{5}-\frac{3}{4}$

Least common multiple of 20 and 5 is 20. Convert $-\frac{7}{20}$ and $\frac{2}{5}$ to fractions with denominator 20.

$-\frac{7}{20}+\frac{8}{20}-\frac{3}{4}$

Since $-\frac{7}{20}$ and $\frac{8}{20}$ have the same denominator, add them by adding their numerators.

$20-7+8-\frac{3}{4}$

Add -7 and 8 to get 1.

$\frac{1}{20}-\frac{3}{4}$

Least common multiple of 20 and 4 is 20. Convert $\frac{1}{20}$ and $\frac{3}{4}$ to fractions with denominator 20.

$\frac{1}{20}-\frac{15}{20}$

Since $\frac{1}{20}$ and $\frac{15}{20}$ have the same denominator, subtract them by subtracting their numerators.

$\frac{1}{20}-15$

Subtract 15 from 1 to get -14.

$20-14$

Reduce the fraction $-\frac{14}{20}$ to lowest terms by extracting and canceling out 2.

$-\frac{7}{10}$ or $-0.7$

Hope this helps! Brainliest would be much appreciated! Have a great day! :)

8 0

2 years ago