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Nana76 [90]
2 years ago
8

Four times the sum of a number and 15 is at least 120.let x represent the number. Find all possible values for x

Mathematics
1 answer:
jenyasd209 [6]2 years ago
5 0
4x + 15 >= 120
4x + 15 - 15 = 120 - 15
4x = 105
4x/4 = 105/4
x = 26.25
Answer is x >= 26.25
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Explain how you can tell, without computing, whether the quotient one -half divided into 6 is greater than one or less than one
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If you divide up a fraction into smaller pieces it will always be less than 1 because it started out less than 1 and you're making it even smaller.
8 0
3 years ago
10 men working for 6 days can complete 5 copies of a book if there are 8 men working to complete 4 copies of the book how many d
Musya8 [376]

Answer:

6 Days

Step-by-step explanation:

Practically:

It takes,

10 Men ( complete ) 5 Copies --> 6 Days

So, 2 Men can complete 1 copy in 6 days.

Question asks us :

8 Men ( complete ) 4 Copies --> X Days

It will take 6 days because the proportion of men to copies is same as the first equation.

Theoretically:

10 Men 5 Copies 6 Days

8 Men   4 Copies  X Days

> 6/X = 8/10 ( If men decrease the number of days increase. So, it is an indirect proportion. ) . 5/4 ( If copies decrease the number of days decrease as well. So, it is a direct proportion. )

> 6/X = 8/10 . 5/4

> 6/X = 40/40

> 6/X = 1

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6 0
2 years ago
Read 2 more answers
Will give brainliest if you are right.
miv72 [106K]

Answer:

x-int (2, 0)

y-int (0, 3)

General Formulas and Concepts:

  • The y-intercept is the y value when x = 0.  Another way to reword that is when the graph crosses the y-axis.
  • The x-intercept is the x value when y = 0.  Another way to reword that is when the graph crosses the x-axis.

Step-by-step explanation:

<u>Step 1: Locate x-intercept</u>

x-int (2, 0)

<u>Step 2: Locate y-intercept</u>

y-int (0, 3)

8 0
3 years ago
What is equivalent to 32/40
WARRIOR [948]
4/5 is a fraction equivalent to 32/40.  This is in simplest form.
Another fraction that is equivalent to 32/40 is 16/20.
3 0
3 years ago
Read 2 more answers
Need ASAP 20 points !
AlladinOne [14]

Answer:

X = 116

Step-by-step explanation:

Total heptagon angle = 900

124 + 120 + 122 + 136 + 144 + 138 = 784

900 - 784 = 116

4 0
2 years ago
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