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laila [671]
3 years ago
13

How is an inequality different from an equation? Give a real-world scenario in which you would write an inequality rather than a

n equation
Mathematics
2 answers:
geniusboy [140]3 years ago
8 0
An equation is a mathmatic expression that has equal signs and an inequality has inequaluty signs example y=12x is an equation and y<12x is an inequality
WINSTONCH [101]3 years ago
5 0
And equation is a mathematical sentences with an equal sign. An inequality is a mathematical sentences in which contaibs with <, >, ≤ ≥≠. A real life example would be: Madeline has $45.Sep 18, 2017
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Solving a right triangle (ROUND TO THE NEAREST TENTH)
Kay [80]

Answer:

see explanation

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Subtract the sum of the given angles from 180 for B

B = 180° - (90 + 40)° = 180° - 130° = 150°

--------------------------------------------------------------

sin40° = \frac{opposite}{hypotenuse} = \frac{a}{21}

Multiply both sides by 21

21 × sin40° = a, thus

a ≈ 13.5 ( to the nearest tenth )

--------------------------------------------------------------

cos40° = \frac{adjacent}{hypotenuse} = \frac{b}{21}

Multiply both sides by 21

21 × cos40° = b, thus

b ≈ 16.1 ( to the nearest tenth )

3 0
3 years ago
Three-fifths of the members of the Spanish club are girls. There are a total of 30 girls in the Spanish club.
alekssr [168]

Answer:

50

Step-by-step explanation:

4 0
3 years ago
amy borrows $130 to buy supplies for her birthday party. she receives gifts and money from her friends and family. the total amo
OLga [1]

Answer:

Step-by-step explanation:

If Amy received 250 dollars for her bday, but she borrowed before 130,

she will have left:

250-130=120 dollars

3 0
3 years ago
Read 2 more answers
The city council voted on a new tax. 18 council members voted in favor of the tax. The council has 90 members. What percentage o
Marina CMI [18]

Answer:

20%

Step-by-step explanation:

18/90 = .2

Decimal to Percentage Rule: Multiply by 100

.2 * 100 = 20

20%

Hope this helps!  Have a nice day!

7 0
3 years ago
Read 2 more answers
You purchase a cell phone for $125. the value of the cell phone decreases by about 20% annually. write a function at models the
djverab [1.8K]
F(x)=125-(125*0.2x)
to find the value of the phone after 3 years, you put x=3.
f(3)=125-(125*0.2(3))
f(3)=50
5 0
3 years ago
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