Answer:
125
Step-by-step explanation:
8x-41+9x+17=180
17x-24=180
17x=204
x=12
9(12)+17
125
Answer:
the numbers are 85 and -31.
Step-by-step explanation:
first, let the numbers be x and y.
so by question we have,
x+y=54.......(I)
x-y=116......(I I)
now, solve it through elimination method,
x+y=54
x-y=116
here, y and y cancelled out and we get,
or, x+x=54+116
or, 2x=170
or, x=170/2
therefore, x=85
now put value of x in any equation. let's put in eqn (I), we get,
or, x+y=54
or,85+y=54
or, y=54-85
so, y= -31
therefore, the numbers are 85 and - 31.
Answer:
Step-by-step explanation:
5) P1=(x1,y1) P2=(x2,y2)
P1=(0,1) P2=(4,-1)
m = y2-y1 / x2-x1
m= -1-1 / 4-0
m= -1/4
point-slope formula (memorize this ) [y-y1=m(x-x1)
y-1= -1/4(x-0)
y-1 = -1/4x
y= -1/4x+1
6) P1=(-3,3) P2=(0,-1) ( same process as above)
m=-1-3 / 0-(-3)
m= -4/3
y-3= -4/3(x-(-3))
y-3 = -4/3(x+3)
y-3 = -4/3x -4
y = -4/3x -4+3
y = -4/3x -1
7) P1=(0,-1) P2=(-2,-2) (same process as above)
m= -2-(-1) / -2-0
m= -2+1 / -2
m= -1 / -2
m= 1/2
y-(-1) =1/2(x-0)
y+1= 1/2x
y= 1/2x -1
8) P1=(1,-5) P2=(-2,2)
m=
I'll let you work out the rest of 8.. just follow what i've shown above.. ask later if you need more help :)
Answer:
Sale price= $25.5
Step-by-step explanation:
Giving the following information:
The original price was $29.99, but the ball was on sale for 15% off.
<u>To calculate the sales price, we need to use the following formula:</u>
<u></u>
Sale price= original price* (1 - sales discount)
Sale price= 29.99*(1 - 0.15)
Sale price= $25.5
