Answer:
1. x = 4 2. x = 8 3. p = 30
Step-by-step explanation:
1. x + 7 = 11 check: (4) + 7 = 11
- 7 - 7 11 = 11
x = 4
2. x - 12 = -4 check: (8) - 12 = -4
+ 12 + 12 -4 = -4
x = 8
3. multiply p/5 by 5 it cancels each other out and then you do the same thing to the other side. multiply 6 by 5 and you get 30
check: (30)/5 = 6
6 = 6
30 divided by 5 equals 6
Given:
551.88 + 341.64b
The coefficient of "B" is 341.64, the best statement that applies to it is:
<span>D. It is the cost for one cable box with DVR and HD service for one year.
</span>Cable boxes: $ 3.49 per cable box
HD Service: $ 9.99 per cable box
<span>DVR: <u> $ 14.99 per cable box</u>
</span>Total : $ 28.47
multiply <u> 12 months</u>
Annual cost $341.64
Answer:
0.82%
Step-by-step explanation:
First find the z-score.
z = (x − μ) / σ
z = (72 − 60) / 5
z = 2.4
Use a chart or calculator to find the probability.
P(Z > 2.4) = 1 − P(Z < 2.4)
P(Z > 2.4) = 1 − 0.9918
P(Z > 2.4) = 0.0082
In order to find the reciprocal of 10 1/2 you have to figure out the improper fraction. the improper fraction for that equation would be 21/2. reciprocal means opposite, so when you reciprocal a fraction, you have to put the numerator on the bottom and the denominator on the top. so, 21/2 is 2/21. 2/21 is the reciprocal for 10 1/2 :))