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sladkih [1.3K]
2 years ago
12

Keisha wants to buy a stereo. Her mother said if Keisha saved 75% of the cost of the stereo, she would pay the other 25% and the

taxes. If the cost of the stereo is $150.00, how much money does Keisha need to save?
Keisha needs to save $________???

HURRY PLS
Mathematics
1 answer:
TEA [102]2 years ago
8 0

Answer:

$112.50

Step-by-step explanation:

25% is $37.50

37.50x3=112.50

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To estimate the number of lizards in a certain region, Sean traps 36 lizards and marks them. He releases these lizards and then
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Evaluate if a= -21 a/3+a=
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The answer is -28
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For a certain commodity the supply equation is given by S = 2p + 5 At a price of $1, there is a demand for 19 units of the commo
slava [35]

Answer:

The demand equation is: D=-4p+23

Step-by-step explanation:

To get started, we should keep in mind that the market price (p=3) occurs when supply equals demand ,therefore when p=3

S=2(3)+5=11

Thus, when p=3 D=11 and, according to the problem  when p=1 D=19.

We already know two points on the demand curve. Great!

The demand equation is linear, so it has form D=bp+c.

The variable b is the slope of  the demand linear equation . It can be computed through the formula

b=\frac{y2-y1}{x2-x1}.  equation 1

Substituting the two points (3,11) and (1,19) on equation 1.

b=\frac{19-11}{1-3} =\frac{8}{-2}

b=-4

Now we can find the value of  intercept of the demand equation c trough point-slope form y-y1=b(x-x1).

We can use any of the points. Let's take (3,11) and write in point-slope :

y-11=-4(x-3)

y=-4x+11+12

y=-4x+23

Rewrite the linear equation according our variables D and p

D=-4P+23

Finally we found the demand equation !

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3 years ago
lesa saved 17,689 pennies lynn saved 1614 connie saved 176 pennies how many pennies did they save altogether
Goshia [24]
To find your answer you must add them all together :
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1,614
+ 176
_________
19,479
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