MATHEMATICS MIDDLE SCHOOL

Which of these percentages is closest in value to 7/9 ?
a. 76%
b. 77%
c. 78%
d. 79%

Answers

Answer 1
Answer: (7)/(9) = 0.777777777777777...

To get a percentage, you need to first round the decimal to the hundreths place. Whenever you have a number greater than 5, you round up.
Therefore, you can round it to 0.78.
Now to get the percentage you multiply it by 100.

0.78*100 = 78

This shows your answer is (c) 78%.
Answer 2
Answer: (7)/(9) ≈ 0.77777..

0.7777 ≈ 0.78

0.78*100=78          \boxed{->C}

The answer is 78%

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Solve the system of equations by the addition method.
x- y=-9
x+y=-5

Answers

Answer:

x=-7, y=2. (-7, 2).

Step-by-step explanation:

x-y=-9

x+y=-5

-----------

2x=-14

x=-14/2

x=-7

-7-y=-9

y=-7-(-9)

y=-7+9

y=2

a fishermen catches an average of 6 fish every 2 hours at this rate how many fish should he catch in 21 hours

Answers

Answer:

63

Step-by-step explanation:

Which statement about the ordered pairs  (−9, 3)
(−9, 3)
and 
(2, −4)
(2, −4)
is true for the equation
6x−
y
2

=14
6x−y2=14
?


(−9, 3)
(−9, 3)
is a solution to the equation.

(2, −4)
(2, −4)
is a solution to the equation.

Both ordered pairs are solutions.

Neither ordered pair is a solution.

Answers

Neither ordered pairs are a solution

The 100% correct answer is:

2,-4 is a solution to the equation

There are 3.9 mg of calcium in each ounce of cooked chicken. -write an equation for each relationship. Tell what the variables represent-

Answers

Let:

y = 3.9x

where y is = the amount of calcium in mg.

x = weight of chicken in ounces.

Check:

For 1 ounce of chicken there are 3.9 mg of Calcium.

y = 3.9x

y = 3.9*1

y = 3.9

ABCD is a square and a semicircle O has a radius of 6. WHAT is the area of this figure?

Answers

I'm assuming the semi circle lies on one of the sides of the square. that means with a radius of 6 the diameter/ side length of the square is 12. the area of a square is length times width so 12×12=144. the area is 144 units^2

The width of the Ochoa Community Pool is 20 feet . The length is twice as long as its width. What is the perimeter of the pool?

Answers

Answer:

The perimeter of the pool is 120 feet.

Step-by-step explanation:

width of the Ochoa community pool  = 20 feet  

length is twice as long as its width = 2(20) = 40 feet  

Use this formula to get perimeter = 2(w) + 2(L)

then the perimeter equals to  = 2(20)+ 2(40)

= 40 + 80 = 120 feet

The perimeter of the pool is 120 feet.
the width is 20 feet the length is 20 feet x 2 = 40 and I bet you know how to work out the perimeter add all the width and length so 20 + 20 +40 + 40 =120 120 feet is the answer your welcome
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