Question 1:
For this case, the first thing we must do is define variables.
We have then:
x: number of nickels
y: number of dimes
We write the system of equations that adapts to the problem.
We have then:
0.05x + 0.10y = 6.10
x + y = 67
Solving the system we have:
x = 12
y = 55
Answer:
there are 12 nickels
Question 2:
For this case, the first thing we must do is define variables.
We have then:
x: Allan's score
y: Dave's score
We write the system of equations that adapts to the problem.
We have then:
x + y = 375
x = 2y-60
Solving the system we have:
x = 230
y = 145
Answer:
Dave: 145 Allan: 230
The answer is 21 i really don't know
(basically like a 3D hexagon)
~Hope this helped
*hope images helped*
~~~~~~~~~~~~~~~~
Two of the images are rectangles; in which is an answer you can also put.
~~~~~~~~~~~~~~~~
Answer:
$35
Step-by-step explanation:
equation to represent the situation:
4.90 = 0.14 * b
so,
4.90 / 0.14 = b
b = 35
The cost of the manicure was $35.
Answer:
distributive property
Step-by-step explanation:
-5x+10
multiply everything in the parenthesis by -5