Eduardo think of a number between 1 and 20 that has exactly 5 factor. what number is he thinking of?
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Eduardo is thinking of 16 because 16 has 1,2,4,8,and 16 itself.
7/8 times c for c = 8
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Find the point where two lines intersct
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y=2x+3 y=-x the interssection is the set of points that make both systems true
set them eual to each other since they both equal y 2x+3=y=-x 2x+3=-x add x to both sides 3x+3=0 subtract 3 3x=-3 divid 3 x=-1
subsitue y=-x y=-(-1) y=1
(x,y) the intersection is (-1,1)
y=2x+3 y=-x To find the point, first set them equal to each other: 2x+3=-x Then, solve for x: 3x=-3 x = -1 y = -x --> y = -(-1) = 1 So the point is (-1,1)
The scale on the map is 1 cm to 10 km. The distance from Clevend to Cincinnati is 40cm. The scale on the second map is 1 cm to 50 km. What is the distance from Clevend to Cincinnati on the second map? Explain your reasoning
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1cm *10 = 10km 40cm * 10 = 400 km
50km/50 = 1cm 400km/50 = 8cm
A: 8cm
What is the sum of r + s when r = –16.2 and s = –18.5?A. –34.7
B. –2.3
C. 2.3
D. 34.7
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r + s First, substitute your numbers in. / Your problem should look like: Second, simplify. / Your problem should look like: