Answer:The second one to the right is 50 because 5 times 5 is 25 and the other is 5 times 5 to and 25 plus 25 is 50.The 2 one on the right is 40 is you multiply the length times width which is the area of a rectangle and square so do that for all of them and you find the answer for x by determining whats the length and width based on the known answers already
Step-by-step explanation:
Hope this helps :D
f(x)=2x^2+0x-5
Find the vertex
0/4=0=x
Input x into the equation to find y or f(x)
0+0-5=f(x)
(0,-5) = Vertex
Now find a random x coordinate to input into the equation.
Let's do 4.
32+0-5=f(x)=27
It may not look like a parabola due to it being uneven.
a) Is 7.44 You would do 33.98 - 26.54 (Dish w/ Salt Water - Dish)
b) Is 2.74 You would do 29.28 - 26.54 (Dish w/ dried salt - Dish)
c) Is 4.7 You would do 7.44 - 2.74 ( Mass of salt water - Mass of dried salt)
Let me know if this helped you! Have a wonderful night and good luck tomorrow! You got this! :)
Answer:
You have
21
dimes and
7
quarters.
Explanation:
Let
x
be the number of quarters, and
3
x
the number of dimes.
The amount of money you have can be written as
0.25
x
+
0.1
⋅
3
x
=
3.85
.
Now isolate
x
to find the number of quarters:
0.25
x
+
0.1
⋅
3
x
=
3.85
0.25
x
+
0.3
x
=
3.85
0.55
x
=
3.85
x
=
3.85
0.55
=
7
=
the number of quarters.
Then multiply by three to get the number of dimes:
7
⋅
3
=
21
7
⋅
$
0.25
+
21
⋅
$
0.1
=
$
3.85
Step-by-step explanation:
Hope this helped