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3 years ago

Please help!!

1 answer:

8 0

$2 \frac{5}{8} \div 2 \frac{1}{2}$
Change the mixed fractions to improper fractions.
To do this, multiply the whole number part by the denominator. Add that to the numerator. Then write the result on top of the denominator.

You would now have:
$\frac{21}{8} \div \frac{5}{2}$
Change the division sign to a multiplication sign by turning the second fraction upside down.
That is,
$\frac{21}{8} \times \frac{2}{5}$

The answer is:
$\frac{42}{40}$

This can be simplified to:
$\frac{21}{20}$

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8x-7y-(3-6y) Simplify each expression

castortr0y [4]

8x - 7y - (3 - 6y) =
8x - 7y - 3 + 6y =
8x - y - 3

7 0

4 years ago

Jana is decorating 6 picture frames by gluing straws around the borders and adding wooden stars at the corners. Each picture fra

zzz [600]

Answer:

C: 48 straws

Step-by-step explanation:

First, find the perimeter of one picture frame: (2 x length) + (2 x width). Convert 20 centimeters to millimeters so that you are working in the same units; there are 10 millimeters in 1 centimeter, so 20 centimeters = 200 millimeters.

(2 x 200) + (2 x 120) = 400 + 240 = 640

Each picture frame has a perimeter of 640 millimeters.

Next, figure out how many straws are needed for one picture frame:

640/80 = 8

Jana uses 8 straws for each picture frame. Since she is decorating 6 picture frames, solve 6 x 8 = 48.

Jana needs 48 straws to complete her project.

3 0

4 years ago

Solve the system of linear equations by graphing. y=2x−3 y=x+2

Musya8 [376]

Step-by-step explanation:

y=2x−3

y=x+2

y=-3

x=3/2

for the second line

y=2

x=-2

7 0

3 years ago

B.y = 4x + 2 y = -8x + 8

Inessa05 [86]

$y = 4x + 2 \\ = > y - 2 = 4x \\ = > x = \frac{y - 2}{4}$

$y = - 8x + 8 \\ = > y = - 8( \frac{y - 2}{4} ) + 8 \\ = > y = \frac{ - 8y + 16}{4} + 8 \\ = > y = \frac{ - 8y + 16 + 32}{4} \\ = > y = \frac{ - 8y + 48}{4} \\ = > 4y = - 8y + 48 \\ = > 4y + 8y = 48 \\ = > 12y = 48 \\ = > y = 4$

$y = 4x + 2 \\ = > 4 = 4x + 2 \\ = > 4x = 4 - 2 \\ = > 4x = 2 \\ = > x = \frac{2}{4} = \frac{1}{2}$

Answer:

$x = \frac{1}{2} \\ y = 4$

Hope you could understand.

If you have any query, feel free to ask.

4 0

2 years ago

Read 2 more answers

Patrick is working for an hourly wage of $15. if he worked for 28 hours last week, what is his gross pay? $375 $420 $450

Yuri [45]

Patrick's gross pay (GP) is the product of his hourly wage (W) and the number of hours (h) he worked. Expressed mathematically,
GP = W x h = ($15 / hour) x (28 hours) = $420
Thus, Patrick's gross pay for last week's work is $420.

3 0

4 years ago