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ladessa [460]
3 years ago
6

write an equation in point-point form for the line through the given point with the givedescribe how the graph of y | x| -4 is l

ike the graph of y= |x| and how it is different. slope. (-3,-7); m=-6/5
Mathematics
1 answer:
Sergeu [11.5K]3 years ago
4 0
Asked and answered elsewhere.
brainly.com/question/10431594
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.
jarptica [38.1K]

Answer:

3 gallons

Step-by-step explanation:

Let

x ----> the amount of pure acid (100% solution) in gallons

Remember that

100\%=100/100=1

20\%=20/100=0.20

60\%=60/100=0.60

we know that

(1)(x)+(0.20)(3)=(0.60)(x+3)

solve for x

x+0.60=0.60x+1.80

x-0.60x=1.80-0.60\\0.40x=1.20\\x=3\ gal

therefore

3 gallons of pure acid should be mixed with 3 gallons of a 20% acid solution in  order to get a 60% acid solution

7 0
3 years ago
The sum of 3 numbers is -44.84.one of these numbers is 24.6.the other 2 numbers are equal to each number.what is the value of ea
Bad White [126]
X+24.6=-44.84
Subtract 24.6 /2

X= -34.72
5 0
3 years ago
Reggie’s bank is offering a checking account for anyone who has more than 1000. He deposits 3200 into the account at a rate of 4
timama [110]

Answer: 384

Step-by-step explanation:

4/100×3200×3yrs

=128

5 0
3 years ago
The area of a playground is 336 yd2. The width of the playground is 5 yd longer than its length. Find the length and width of th
kondaur [170]
L=16
W=21

Set up a systems of equations: 
x=length 
y=width 

xy=336
x+5=y

Use substitution to solve: 
x(x+5)=336
x^2+5x=336 

Solve using factoring: 
x^2+5x-336=0
(x-16)(x+21)=0
x=16 and x= -21 
Since length can't be negative, l=16 

To find width, plug length into the first equation: 
(16)y=336
y=21 

So...
L=16
<span>W=21</span>
7 0
3 years ago
Read 2 more answers
Expand the expression 3(5p+1) using the distribution property <br><br><br><br><br> PLEASE HELP
garri49 [273]

Answer:

15p + 3

Step-by-step explanation:

Multiply 3 by each number in the parentheses and keep the variable

7 0
3 years ago
Read 2 more answers
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