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Arturiano [62]
2 years ago
13

40% of = 8 please help

Mathematics
2 answers:
guajiro [1.7K]2 years ago
8 0

Answer:

3.2

Step-by-step explanation:

Marina CMI [18]2 years ago
4 0

Answer: 3.2

Step-by-step explanation:

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What is the equation of a line with a slope of -1/2 and passes through the point (6,-6)
Studentka2010 [4]
Y = mx + b
slope(m) = -1/2
(6,-6)....x = 6 and y = -6
now we sub into the formula and find b, the y int
-6 = -1/2(6) + b
-6 = - 3 + b
-6 + 3 = b
-3 = b

so ur equation is : y = -1/2x - 3 <==
4 0
3 years ago
Simplify the expression (2x − 9)(x + 6).<br><br> Help?
Leno4ka [110]
<span>( 2x - 9 ) ( x + 6 )

( 2x ) ( x ) + ( 2x ) ( 6 ) + ( - 9 ) ( x ) + ( - 9 ) ( 6 )

2x² + 12x - 9x - 54

2x² + 3x - 54.</span>
6 0
3 years ago
Read 2 more answers
you have 3.75 to spend at a vending machine. You want to buy at least three health bars. Regualr health bars cost 0.75 each and
DedPeter [7]

Answer:

Let x be the number of regular health bars you buy and y the number of strawberry health bars you buy. Then:

0.75x+1.25y=3.75

x+y>=3

Step-by-step explanation:

For the first equation, we have to assume that you will spend all of your money, otherwise it becomes an inequation. The money you spend on regular bars is 0.75x dollars and the money you spend on strawberry bars is 1.25y, so if you spend your 3.75 dollars on the bars, then 0.75x+1.25y=3.75.

For the second, you will always buy x+y health bars, regular and strawberry. There isn't enough information to make this into a equation, the only thing we can deduce is the inequation x+y>=3.

If we also assume that x and y are integers (we can't buy half-bars or one-fourth of a bar) then the minimum number of bars we can buy is 3 (3 strawberry bars) and the maximum is 5 bars (5 regular bars). x+y must be an integer too, so the possibilities for the second equation are x+y=3, x+y=4 and x+y=5. There is a finite number of solutions in any case.  

4 0
3 years ago
Which of the following points are on the line given by the equation y equals 2x?
Rina8888 [55]

Answer:

(5,10)

(3,6)

Step-by-step explanation:

The equation y=2x means that 2 multiplied by the first value would equal the second value, so this means that the second value is twice as much as the first value.  This is not true for the first option because 8 is not twice of 16, and this is the same for (4,6), (4,2), and (1,3).  Therefore (5,10) and (3,6) work.

5 0
3 years ago
A company has 31 salespeople. A board member at the company asks for a list of the top 4 salespeople, ranked in order of effecti
kvv77 [185]

Answer:

31465 ways

Step-by-step explanation:

Given data

Let us apply the combination formula

nCr = n! / r! * (n - r)!

n= 31

r= 4

substitute

= 31!/4!(31-4)!

= 31!/4!(27)!

= 31*30*29*28*27!/ 4!(27)!

= 31*30*29*28/4!

=31*30*29*28/4*3*2*1

=755160/24

=31465 ways

Hence there are 31465 possible ways to rank it

8 0
3 years ago
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