Answer:
<u>30 gallons solution 4% and 10 gallons solution 8%</u>
Step-by-step explanation:
<h3>x•4%+y•8%=40•5% </h3>
<em><u>4x+8y=40•5 and x+y=40</u></em>
x=40-y
4(40-y)+8y=200
160-4y+8y=200
4y=200-160
4y=40 => y=10 (gallons solution 8%)
=> x=40-10=30 (gallons solution 4%)
30 gallons solution 4% and 10 gallons solution 8%
Answer: Heyaa! :)
<em>Slope: </em>−1
<em>y-intercept: </em>(0,−3)
<em>Slope:</em> 4
<em>y-intercept: </em>(0,−5)
<em>Slope:</em> 2
<em>y-intercept:</em> (0,2)
Slope: −1
<em>y-intercept:</em> (0,4)
- <em>5. 3x+4y=-12 = - 3/4</em>
<em>Slope: </em>−3/4
<em>y-intercept: </em>
(0,−3)
Hopefully this helps<em> you!</em>
<em />
- Matthew
Answer:
t/8 + t/7 = 1
Step-by-step explanation:
Given in the question that,
time require for Jose to paint the house = 7 hours
time require for Brandon to paint the house = 8 hours
Suppose t means Full house painted.
<h3>
To solve the question we have to figure out how much each of them can paint in ONE hour.</h3>
7 hours----t
1 hour ---- t/7
8 hours----t
1 hour ---- t/8
<h3>
Equation</h3>
t/8 + t/7 = 1 (in one hour)
(7t + 8t)/8(7) = 1
15t/56 = 1
15t = 56
t = 56/15
t = 3.73 hours
There are 6 possible outcomes, and 3 favourable events (3 even numbers - 2,4,6)
The probability is
X=2/4=1/2
s=1 1/2
r= 1/2
y= 2/7
w= 1 2/3
p=2/5
Hope this works i can't see the others ok?
