Answer:
the product is greater than 13/4
Step-by-step explanation:
5/2 x 13/4 = 8.125
13/4= 3.25
8.125>3.25
Lets solve for a
ax+b=x+c
step 1:add -b to both sides
ax+b-b=c+x+-b
step 2:divide both sides
ax=-b+c+x
ax/x=-b+c+x/x
a=-b+c+x/x
answer:
a=-b+c+x/x
This question needs more information for me to do the work<span />
X-5=speed of car B
x = speed of car A
Distance = speed times time
distances is equal so
(x-5)(4.5)=(x)(4)
4.5x-22.5=4x
multiply both sides by 2 to get rid of the decimals
9x-45=8x
subtract 8x from both sides
x-45=0 a
add 45 to both sides and get
x=45
speed of car A = 45 mph
Speed of car B = 45-5 or 40 mph
Speed of car B = 40 mph
For 23, you only know 1 set of numbers, which is the hypotenuse. The numbers are 5 and 10. The difference is that the second triangle is 2 times more than the 1st. So the answer is 3 times 2 and 4 times 2 which is 6 and 8, or A. For 24, notice the second figure is 360 less than the first. The 3rd is 180 less than the 2nd. So it only makes sense that the 4th would be 90 less than the 3rd. So D is the most probable answer.
