24 +13 + 16 +3 = 56
so if the total was 56 and the cashier gave her 4$ of change back then she gave 60$ in total
60 - 56 = 4
she gave 60$ in total
700 mg bc 560 divided by 2 is 280 wich is 40%. 280 divided by 2 is 140, thats 20%. 140 + 560 is 700, also 100%
Answer:
np = 81 , nQ = 99
Step-by-step explanation:
Given:
X - B ( n = 180 , P = 0.45 )
Find:
Sampling distribution has an approximate normal distribution
Computation:
nP & nQ ≥ 5
np = n × p
np = 180 × 0.45
np = 81
nQ = n × (1-p)
nQ = 180 × ( 1 - 0.45 )
nQ = 99
Let's solve your equation step-by-step.
0.3(n−5)=0.4−0.2(n−7)
Step 1: Simplify both sides of the equation.
0.3(n−5)=0.4−0.2(n−7)
(0.3)(n)+(0.3)(−5)=0.4+(−0.2)(n)+(−0.2)(−7)(Distribute)
0.3n+−1.5=0.4+−0.2n+1.4
0.3n−1.5=(−0.2n)+(0.4+1.4)(Combine Like Terms)
0.3n−1.5=−0.2n+1.8
0.3n−1.5=−0.2n+1.8
Step 2: Add 0.2n to both sides.
0.3n−1.5+0.2n=−0.2n+1.8+0.2n
0.5n−1.5=1.8
Step 3: Add 1.5 to both sides.
0.5n−1.5+1.5=1.8+1.5
0.5n=3.3
Step 4: Divide both sides by 0.5.
0.5n0.5=3.30.5
n=6.6
Use the difference of squares factor rule to get
4x^2-9y^4
(2x)^2-(3y^2)^2
(2x-3y^2)(2x+3y^2)
The final answer is choice C
Note: the order of the factors does not matter