I disagree with her she will spent more than that because 6×5.29=31.74$ for 6 roses+4×3.59=14.36 4carnations +8×4.79=38.32$for 4 tulips and then 31.74+14.36+38.32=84.42$ all together
Answer: 3x > -28
Step-by-step explanation: We wrote an inequality to represent this situation.
Additionally, to solve this inequality divide both sides of the inequality by 3.
3x/3 > -28/3
x > -9 1/3
Answer:
Step-by-step explanation:
Let us assume that the test scores of the students were normally distributed. we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = test scores of students.
µ = mean test scores
σ = standard deviation
From the information given,
µ = 510
σ = 100
We want to find the probability that a student scored below 300. It is expressed as
P(x ≤ 300)
For x = 300
z = (300 - 510)/100 = - 2.1
Looking at the normal distribution table, the probability corresponding to the z score is 0.018
Therefore, the percentage of students that scored below 300 is
0.018 × 100 = 1.8%
Answer:
$0.50
Solution:
First lets find how many cookies there are:
2.5*12= 30 cookies
Then we divide cost by cookie to see how much a cookie costs
$15/30 = $0.50
She is going to practice piano for 80 minutes. First you want to divide the number of minutes in the lesson by 5 to find how many times 5 minutes goes by in 20 minutes. Next you want to multiply your answer for that, which should be 4, by the amount she wants to practice. So you do 4 x 20, and get 80 minutes total.