Ok for inequalities it's this < and > that so here's a example prob 3>2 so as my teacher used it put it "it's like the little number eats the bigger number." For negatives the one that's being eaten would be the one that's the closest to 0 so -3>-5 also alone way of doing this is to make a number line that's another way I was taught how to do these. I hope this helps you!
Answer:
Step-by-step explanation:
it is 0.5 since
y=25(0.5)x
since x is a variable that change usually describes the independent variable, and 25 is the sample that starts with, so 0.50 is the number that represent the decayed rates.
Step-by-step explanation:
x- red candy
y- blue candy
x + y = 11
1.29x + .79y = 11.19
129x +79y = 1119
-129x -129y = -1419
-50y = -300
y = 6 lbs. blue
x + 6 = 11
x = 5 lbs. red
Answer:
Jersey cost (without discount)= $65
Step-by-step explanation:
<u>First, we need to determine how much he spent on the jersey:</u>
Jersey cost (with discount)= 83.39 - 37.89
Jersey cost (with discount)= $45.5
<u>Now, the original cost of the jersey:</u>
Jersey cost (without discount)= discount cost / (1 - discount)
Jersey cost (without discount)= 45.5 / 0.7
Jersey cost (without discount)= $65
D.
first, eliminate B and C, because the highest degree in these two equation is 3, a 3-degree equation has 3 roots, not 4.
between A and D, A has the roots 0, 0, 7, and -7, all real roots.
D can be factored into (x²-49)(x²+1)=0
x²=49 or x²=-1
x=7 or -7, x=i or -i two real roots, two unreal roots
for the second equation:
first, find the first term by using the formula:
the nth term=the first term + (n-1)*difference
you are given the 13th term and d=3.7
a13=a1+(13-1)d
1.9=a1+12*3.7
a1=-42.5
the sum of the first 13 terms is S=(a1+a13)*(13/2)=(-42.5+1.9)*6.5=-263.9
