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STatiana [176]
2 years ago
8

When are fractions useful and when are ratios useful?

Mathematics
2 answers:
pashok25 [27]2 years ago
7 0
There useful because all sorts of things are measured in fractions and you need ratios for all sorts of things like for income and stuff
kirill [66]2 years ago
3 0
Fractions are useful for splitting and ratios for sharing
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suppose a ladder 20 feet long is placed against a vertical wall 20 feet high . how far would the top of the ladder move down the
dezoksy [38]
The ladder leaning against the wall forms a right angled triangle with the gound and the wall. So we can use the formula:a² + b² = c²The ladder is the hypotenuse c²The vertical leg is b²The base or horizontal leg is a²We need to find the length of the base a²,  so:a² = c² - b²a² = 5² - 4²a² = 25 - 16a² = 9a = √9a = 3<span>Therefore the bottom of the ladder must be 3 feet  from the wall.

Example:
</span>If the 24 foot ladder is leaned on the house with the bottom 8 feet  from the base  the wall of the house, then it will form a right angled triangle.The base of the triangle will be 8 feet while the 24 foot ladder forms the hypotenuse. We need to find out the height from the base of that wall to the point the ladder touches the wall.Let the hypotenuse be CLet the base be BLet the height be AWe use this formula:   A squared + B squared = C squaredA sq + 8 sq = 24 sqA sq + 64 = 576A sq = 576 - 64A sq = 512A = Square root 512A = 22.6To the nearest 10th this will be 23<span>So the answer is 23 feet.</span>
6 0
2 years ago
Vie
Oduvanchick [21]

Answer:

d

Step-by-step explanation:

the graphical representation of 5% of light and 80% of light is the same so light has no effect on seed growth

3 0
2 years ago
How do you write 13/25 as a percentage
mariarad [96]
The fraction 13/25 is equivalent to 52 percent.
To workout this, divide the numerator by the denominator, sum this value to the integer part and multiply the result by 100%, so:
13/25 in percent = 13 ÷ 25 × 100% = 0.52 × 100% =  52%
8 0
3 years ago
Read 2 more answers
2 poi
jolli1 [7]

Me ayudas por favor es regla de ruffini apretá mi perfil y ve mi pregunta

7 0
3 years ago
Please help!! A. 170 B. 205 C. 230 D. 105
Damm [24]

Answer:

D. 105

Step-by-step explanation:

500-270, there's 230 total 2 head.

270-100 of one head, is 170 purple one head. 170+125 purple equals 295.

296 subtract from 500 total is 205 for total green.

205-100, 105 2 head.

8 0
2 years ago
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