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kozerog [31]
3 years ago
13

I need help please!!!!

Mathematics
2 answers:
Anna007 [38]3 years ago
7 0

C because iTs the right oNE

Gwar [14]3 years ago
6 0
C, cuz it just different
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in a sale normal prices are reduced by 15%. the sale price of a CD player is $102. work out the normal price of the CD player.
morpeh [17]
.85x=102
x=120
The answer is $120.
8 0
3 years ago
Solve the system of equations. y=23x–19 x2–y= – 6x–23 Write the coordinates as integers, simplified proper or improper fractions
forsale [732]

Answer:

(3, 50) and (14,303)

Step-by-step explanation:

Given the system of equations;

y=23x–19 ....1

x²–y= – 6x–23 ...2

Substitute 1 into 2;

x²–(23x-19)= – 6x–23

x²–23x+19= – 6x–23 .

x²-23x + 6x + 19 + 23  = 0

x² - 17x + 42 = 0

Factorize;

x² - 14x - 3x + 42 = 0

x(x-14)-3(x-14) = 0

(x-3)(x-14) = 0

x = 3 and 14

If x = 3

y = 23(3) - 19

y = 69-19

y = 50

If x = 14

y = 23(14) - 19

y = 322-19

y = 303

Hence the coordinate solutions are (3, 50) and (14,303)

8 0
3 years ago
Express Jenny's age in terms of a if jenny is three years less than half of Anne's age
Nadusha1986 [10]
1. a = 1/2x - 3
2. a = 2x + 7
3 0
3 years ago
Complete the point-slope equation of the line through (-5,4) and (1,6). Use exact numbers.
BigorU [14]

ANSWER

y - 6 =  \frac{2}{7} (x - 1)

EXPLANATION

The point-slope equation of a straight line is given by:

y-y_1=m(x-x_1)

Where m is the slope.

The line goes through (-5,4) and (1,6).

The slope of this line is,

m =  \frac{6 - 4}{1 -  - 6}

m =  \frac{2}{7}

The point-slope equation is

y  - 6 =  \frac{2}{7} (x - 1)

7 0
3 years ago
X = -4y + 36
Helga [31]
It should be 8473x 38473 93
4 0
2 years ago
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