2 years ago

Math screen shot photo

Mathematics

1 answer:

lianna [129]2 years ago

5 0

Answer:

30625

Step-by-step explanation:

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Solve 13/19-(-1/19) a.-12/19 b.-14/19 c.14/19 d.12/19

mojhsa [17]

Answer:

Any time you have a subtraction and a negitive right next to eachother, it means to add. So, you would add 13 and 1 to get 14, then keep the denominator 19 to get 14/19.

Step-by-step explanation:

7 0

2 years ago

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Xin Used 20 yards of fencing to build the walls of a square a chicken coop. Used 20 yards of fencing to build the walls of a squ

Gnoma [55]

Answer:

Equation: $20=4x$ or $x=\frac{20}{4}$

Solution: $x=5$

Step-by-step explanation:

The formula that is used to calculate the perimeter of a square is:

$P=4s$

Where "s" is the side lenght the square.

Knowing that Xin used 20 yards of fencing to build the walls of a square chicken coop (in which the lenght in yards of each wall is represented with "x"), you can identify that:

$P=20\\\\s=x$

Then, you can susbtitute values into the formula $P=4s$ :

$20=4x$

Finally, you must solve for "x" in order to find its value.

This is:

$\frac{20}{4}=x\\\\x=5$

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3 years ago

HELP PLEASE I have no clue what this is

devlian [24]

Answer:

972

Step-by-step explanation:

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3 years ago

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Why does brainly give me the wrong answers to math problems?

k0ka [10]

Answer:

Because people are not so smart and answer wrong

Step-by-step explanation:

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2 years ago

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In an on-line survey, a school learns that 77 of 100 parents prefer to receive the newsletter electronically. How many paper new

Kay [80]

77% of the school want electronic newsletters, so 23% of the school want physical paper newsletters.

77% of 650 is 500.5.
23% of 650 is 149.5.

650/100 = 6.5
6.5x77 = 500.5
6.5x23 = 149.5

It's best to round that figure up to 150 as there will not be a parent who only needs half of the newsletter.

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2 years ago