Two dollars. Since that will total 4.99, the only option within her budget :)
3.
area=legngth tiimes width
legnth is 10 more than 2 times width
l=10+2w
lw=area=(10+2w)w=10w+2w^2
area=3600
3600=10w+2w^2
so divide by 2
1800=5w+w^2
subtract 1800 from both sides
(note they used x instead of w)
0=w^2+5w-1800
then the facotred form is (w-40)(w+45)=0
0 product property measn if you have xy, then x and or y =0
therefor
w-40=0 and w+45=0
w=40 or -45
discard negative because negative legnth is not possible
explian how solution relates to situation
it is math so it is correct because we represented it corrrectly
the other solution is because of math and eliminate negative legnth becasue tha tis not possible
basically because we represented it correctly
not a very clear quetion to answer
basically 'because it represents the solution so we solved it and it is correct'
Area= 1/2 b xh
Sooo= 1/2 x 12 x 7= 42
Answer: 42 inches squared
Answer:
yes
Step-by-step explanation: Rotations, reflections, and translations are isometric. That means that these transformations do not change the size of the figure. If the size and shape of the figure is not changed, then the figures are congruent.
part c and b arent clear but the answer to a is this:
if you want to find 40% of something, start with finding 10% then multiplying by 4 to get 40%. 10% of 24.99 is 2.49. 2.49 times four is 9.96. so thats 40% of 24.99.
to find the price, subtract 9.96 from 24.99.
you get $15.03