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katrin2010 [14]
3 years ago
11

Answer pleaseeee??? Thanks

Mathematics
2 answers:
inessss [21]3 years ago
5 0

Answer:

True!

Step-by-step explanation:

3(10) - 9

30 - 9

21

algol133 years ago
3 0

Answer: false becuase you would add 9 to both sides simply 3x=19 then 19/3 then if u want to check it just plug 19/3 in the equation then cancel 3 simply 19-9.

Step-by-step explanation: i'm not so sure but hope it helps .

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A right triangle has a base of 14.3 cm, a slant height of 21.75 cm, and a height of 15 cm. What is the area of the triangle?
lina2011 [118]

Answer:

107.25cm²

Step-by-step explanation:

Area of triangle = 0.5 * base * height

Base = 14.3 cm

Height = 15 cm

Hence, Area of triangle :

Area = 0.5 * 14.3 * 15

Area = 107.25cm²

8 0
3 years ago
kayla works at a coffee shop, and yesterday she earned $6.25 an hour plus $8.50 in tips. Let x represent the number of hours wor
Marta_Voda [28]

Answer:

<h2>y=6.25x+8.5</h2>

Step-by-step explanation:

Step one:

Given data

amount of money earned per hour= $6.25

amount of money made in tips= $8.5

if x represents the number of hours worked and

y represents the total amount earned

The linear function for the total is expressed as

y=mx+c

Step two:

Hence for the situation given the expression for the total is

y=6.25x+8.5

Say Kayla worked for 2 hours

that is x=2, the total she would have earned is

y=6.25(2)+8.5

y=12.5+8.5

y=21

For a 2 hour work, Kayla will make $21

7 0
3 years ago
What is the following​
Stella [2.4K]

Answer:

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Step-by-step explanation:

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3 years ago
A rose garden is formed by joining a rectangle and a semicircle, as shown below. The rectangle is 27 ft long and 20 ft wide. If
myrzilka [38]

Answer:

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6 0
3 years ago
How do i do this problem
vodka [1.7K]
(4x - 1)(3x + 5)

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3 years ago
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