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DochEvi [55]
3 years ago
8

Becky took a quiz in science today. She answered 16 out of 25 correct. What is her score?

Mathematics
2 answers:
ella [17]3 years ago
5 0
You could just say she got 16/25, but as a percentage she got 64%


16÷25=.64

I hope that helps!<span />
Slav-nsk [51]3 years ago
3 0
If you want to know her percentage, we do:
16 ÷ 25 = 0.64
0.64 × 100 = 64%
Her score is 64%
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The diagram shows a square with perimeter 20 cm.
olga_2 [115]

The percentage of the area inside the square that is shaded is 55%.

<h3>What is the perimeter of the square?</h3>

Given:

The perimeter of the square is 20Cm

Each side of the square is = 5Cm

Area = ( Length x Width )

(5 x 5) = 25 =Area

Area = 25

Area of triangle 1 = (1/2) x 5 x (5 - 3) = 5 cm²

Area of triangle 2 = (1/2) x 5 x (5 - 3.5) = 6.25 cm²

Area of shaded portion = 25 - (5 + 6.25) = 13.75 cm²

Percentage of shade portion

= (13.75 cm² / 25 cm²) x 100%

= 55%

The percentage of the area inside the square that is shaded is 55%.

Learn more about area;

brainly.com/question/14297327

#SPJ1

8 0
1 year ago
Someone plz help i will give brainliest (no links)
WITCHER [35]

Answer:

for part b the answer is 90 degrees

Step-by-step explanation:

2 is adjacent from 5 so they are the same degree number

8 0
2 years ago
4.4 pounds of sugar for $2.35 or 10<br> pounds of sugar for $4.99
Marianna [84]

4.4 pounds $2.35 = $.53 per pound

10 pound $4.99 = $ .49 per pound

4 0
3 years ago
PLEASE HELP ITS FOR A TEST I WILL GIVE U BRAINLIEST
prisoha [69]

Answer:

At the average rate of making profit, it will take slightly more than 30 hours for the business to reach a profit goal of $500. (30.075)

Step-by-step explanation:

a) It is not clear what linear equation is desired. We are given enough information to write an equation relating the number of bracelets produced by each worker to the time it takes.

Let n represent the number of bracelets Danica produces. Let r represent the number of bracelets Darrelle produces. Let h represent time in hours.

.. r/3 = h/4 ... Darrelle produces 3 bracelets in 4 hours

.. 4r - 3h = 0 ... equation in standard form

.. r = (3/4)h ... equation in slope-intercept form (the intercept is 0)

.. n/5 = h/2 ... Danica produces 5 bracelets in 2 hours

.. 2n - 5h = 0 ... equation in standard form

.. n = (5/2)h ... equation in slope-intercept form

b) We have no idea what special functions were discussed in the course. Of course these equations can be graphed. (2-dimensional equations are easily graphed.)

c) A profit function can be written in terms of the number of bracelets produced. Then it can be solved to find when (h=?) profit is equal to $500.

.. Let p represent the total profit from production of bracelets.

.. p = 10.50*r + 3.50*n ... profit in terms of bracelets produced

.. p = 10.50*((3/4)h) + 3.50*((5/2)h) ... profit in terms of hours, where both work the same hours

.. p = 16.625 h

.. 500 = 16.625 h ... we want to find hours until $500 profit

.. 500/16.625 = h ≈ 30.0752

At the average rate of making profit, it will take slightly more than 30 hours for the business to reach a profit goal of $500.

_____

If you work out the timing of when bracelets are finished, assuming they are made at a constant rate, you find that there will be 23 of Darrelle's bracelets and 76 of Danica's bracelets finished in 30 hours and 40 minutes. These will yield a profit of $507.50. After another 8 minutes, Danica will have finished bracelet 77 to add another $3.50 to the profit total.

3 0
2 years ago
If 3b – (6 – b) = –22, find the value of 7b.
Alenkasestr [34]

Answer:

Step-by-step explanation:

first solve for b:

distribute the negative sign over the parentheses so:

3b-6+b=-22

combine like terms:

3b+b=-22+6

4b=-16

b=-4

2. Plug in the value of b

7b (replace b with -4)

7(-4)

=-28

7 0
2 years ago
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