Not easy to graph but
multily first equaiton by -2 remember to flip sign
-2x+4y>-6
add to other equaiton
2x-2x+y+4y>-6+8
5y>2
divide by 5
y>2/5
subtitute
2x+2/5>8
subtract 2/5 from both sdies
2x>7 3/5
divid eby 2
x>38/10=19/5=3 4/5
x>3 4/5
y>2/5
just shade the area in that zone, not including point (0,0)
Answer:
w = -9
Step-by-step explanation:
7/3w + 19 = -2
-19 -19
7/3w = -21
Divide both sides by 7/3
w = -9
2 sides are 6 x 5, 6 x 5 = 30, 30 x 2 = 60
2 sides are 4 x 5, 4 x 5 = 20, 20 x 2 = 40
2 sides are 6 x 4, 6 x 4 = 24, 24 x 2 = 48
total = 60 +40 + 48 = 148 square inches
Answer:
520 girls attended the picnic
Step-by-step explanation:
Hello
step 1
Let
Homewood middle school total students=1200
A=unknown=total of girls
(2/3)A=total girls attended the picnic
B=unknown= total of boys
(1/2)B=total boys attended the picnic
step2
replace
Step 3
find A and B
from equation (1)
from equation (2)
total girls attended the picnic=(2/3)A=(2/3)780=520
520 girls attended the picnic
<h2>
Answer:</h2>
348in²
<h2>
Step-by-step explanation:</h2>
6*8 = 48. This is the surface area of the largest rectangle.
6*9 = 54. This is the surface area of the top rectangle.
8*9 = 72. This is the surface area of the smallest rectangle.
The total is 72+54+48, so 174.
Because there are two of each rectangle, you times this number by 2.
174 * 2 = 348in².