Answer:
Can complete a work in 12 days working 8 hours a day Q can complete the same work in 8 days working 10 hours a day if both p and q work together working 8 hours a day in how many days?
Step-by-step explanation:
Answer:
a. y = 27.5 - 0.3X
b. 20
Step-by-step explanation:
y = a + bX
usin the table in the attachment i added, we so for the regression equaion
n = 8
∑xy = 4460
∑x = 280
∑y = 136
∑x²= 10800
from here we solve for a
a. the estimated regression equation
y = 27.5 - 0.3X
b. at x = 25
y = 27.5 - 0.3(25)
y = 20 is the number of defective parts.
Answer:
An equation where the two companies would be the same is given as:
25 + 3.50x = 17 + 7.50x
Step-by-step explanation:
Let the number of trophies ordered be represented by x
Maria is ordering trophies for school. Company Christopher charges $3.50 for each trophy and a one-time engraving fee of $25.
$25 + $3.50 × x
25 + 3.50x
Company Asya charges $7.50 for each trophy and a one-time engraving fee of $17
$17 + $7.50× x
17 + 7.50x
An equation where the two companies would be the same is given as:
Company Christopher = Company Asya
25 + 3.50x = 17 + 7.50x
Simplifying further:
Collect like terms
25 - 17 = 7.50x - 3.50x
8 = 4.00x
x = 8/4
x = 4
Hence, the two companies would be the same after 4 trophies.
Sine (33) = BD / BC
BD = sine (33) * BC
BD = 0.54464 * 110
BD =
<span>
<span>
<span>
59.91
DC^2 = 110^2 - 59.91^2
</span></span></span>DC^2 = 12,100
<span>
<span>
<span>
-3,589.21
</span></span></span>DC^2 = 8,510.79
DC = 92.25
AD = BD = 59.91
AB^2 = 59.91^2 + 59.91^2
AB^2 = 7,178.42
AB =
<span>
<span>
<span>
84.7</span></span></span>3
Perimeter = AB + BC + AD + DC
Perimeter = 84.73 + 110 + 59.91 + 92.25
Perimeter = 346.89
Answer:
It will take 1.5 hours to paint the room together
Step-by-step explanation:
Martha can paint a room in 2 hours. Jamie can paint the same room in 6 hours.
Work done by Martha in 1 hour =
Work done by Jamie in 1 hour =
Work one together in 1 hour =
Now take common denominator to add both fractions
LCD = 6, Multiply the first fraction by 3
Now add the numerators
To find total hours of painting together, we take reciprocal of 2/3
Time taken to paint together =
It will take 1.5 hours to paint the room together