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pishuonlain [190]

2 years ago

6

find the lenght of the poster board is 2 feet and the width is 1 whats the serea of the board of the poster

1 answer:

rusak2 [61]2 years ago

8 0

2 square feet is the answer

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Help please due tonight <br><br>50 points + brainliest

Leviafan [203]

Answer:

7. -37/36 or -1 1/36

8. -3/10

9. 1/24

10. -118/21 or -5 13/21

11. 97/12 or 8 1/12

12. 49/8 or 6 1/8

Step-by-step explanation:

To subtract fractions, they must have the same denominator. The common denominator will be the LCM (lowest common multiple) of the two denominators. Then, combine the fractions and simplify.

7. $-\frac{1}{4}-\frac{7}{9}$ Find a common denominator

$=-\frac{1*9}{4*9}-\frac{7*4}{9*4}$

$=-\frac{9}{36}-\frac{28}{36}$

$=\frac{-9-28}{36}$ Combine the fractions

$=\frac{-37}{36}$ Answer. Already in lowest terms.

$=-1\frac{1}{36}$ Keep a negative number. 37 goes into 36 one time, leaving 1 remainder (becomes numerator)

8. $\frac{3}{5}-\frac{9}{10}$ Find a common denominator

$=\frac{3*2}{5*2}-\frac{9}{10}$

$=\frac{6}{10}-\frac{9}{10}$

$=\frac{6-9}{10}$ Combine the fractions

$=\frac{-3}{10}$ Answer in simplest form.

9. $\frac{5}{8}-\frac{7}{12}$ Find common denominator

$=\frac{5*3}{8*3}-\frac{7*2}{12*2}$

$=\frac{15}{24}-\frac{14}{24}$

$=\frac{15-14}{24}$ Combine the fractions

$=\frac{1}{24}$ Answer in simplest form

10. $-1\frac{1}{3}-4\frac{2}{7}$ Translate to improper fraction

$=-\frac{4}{3}-\frac{30}{7}$ Multiplied each whole number with base, added to numerator

$=-\frac{28}{21}-\frac{90}{21}$ Found common denominator

$=\frac{-28-90}{21}$ Combined fractions

$=\frac{-118}{21}$ Answer in improper form

$=-5\frac{13}{21}$ Answer as a mixed number

11. $5\frac{5}{6}-(-2\frac{1}{4})$ Convert to improper fraction

$\frac{35}{6}-(-\frac{9}{4})$ Two minuses make a plus

$=\frac{35}{6}+\frac{9}{4}$ Find common denominator

$=\frac{35*2}{6*2}+\frac{9*3}{4*3}$

$=\frac{70}{12}+\frac{27}{12}$

$=\frac{70+27}{12}$ Combined fractions

$=\frac{97}{12}$ Answer as improper fraction

$=8\frac{1}{12}$ Answer as mixed fraction

12. $12\frac{1}{2}-6\frac{3}{8}$ Convert to improper fraction

$\frac{25}{2}-\frac{51}{8}$

$\frac{25*4}{2*4}-\frac{51}{8}$ Find common denominator

$\frac{100}{8}-\frac{51}{8}$

$\frac{100-51}{8}$ Combined fractions

$\frac{49}{8}$ Answer as improper fraction

$8\frac{1}{8}$ Answer as mixed number

5 0

2 years ago

WORTH 100 POINTS WORTH 100 POINTS WORTH 100 POINTS WORTH 100 POINTS HELPPPPP

LenKa [72]

Answer:

x - 4y = 22

Step-by-step explanation:

<u>Given line:</u>

x - 4y = 20

<u>Convert the equation into slope-intercept form:</u>

x - 4y = 20
4y = x - 20
y = 1/4x - 5

It has a slope of 1/4.

Parallel lines have equal slopes.

<u>Find the parallel line lines that passes through the point (2, - 5):</u>

y = 1/4x + b

<u>Substitute x and y values to work out the value of b:</u>

- 5 = 1/4*2 + b
- 5 = 1/2 + b
b = - 5 - 1/2
b = - 11/2

<u>The line is:</u>

y = 1/4x - 11/2

<u>Covert this into standard form:</u>

y = 1/4x - 11/2
4y = x - 22
x - 4y = 22

7 0

1 year ago

Read 2 more answers

What is algebra I would really like it if you could help

Sergio039 [100]

Answer:

It is the branch of math that is in charge of dealing with letters known as variables.

Step-by-step explanation:

These variables are used to fill in the place of missing numbers in an equation or solution.Algebra is widely used all over the world in schools.

8 0

2 years ago

Read 2 more answers

The saucer for Roger's teacup has a radius of 3 centimeters. What is the saucer's circumference?

Fantom [35]

C=dπ and r+r=d so 3+3=6 and 6π≈18.84 so the circumference would be 18.84

7 0

2 years ago

What is 2s equal when s equals 9

My name is Ann [436]

Answer:

18

Step-by-step explanation:

2x9=18

6 0

2 years ago