Answer:
<u>The correct answer is B. 3/4</u>
Step-by-step explanation:
In the expression 5n - 2m/7+ 3/4, what is the constant?
Let's analyze the coefficients, variables, operators and constants, as follows:
A. Coefficients:
5 is coefficient for n and 2/7 is coefficient for m
B. Variables:
n and m
C. Operators:
- between 5n - 2m/7
+ between 2m/7+ 3/4
D. Constant:
3/4 that is not affected by any variable
<u>The correct answer is B. 3/4</u>
Answer:
-4/13
Step-by-step explanation:
-(7x + 4)- 2x + 2 = 52
Distribute the negative sign:
-7x -4 - 2x + 2 = 52
Combine like terms:
-9x - 2 = 52
Add 2 to both sides:
-9x = 54
Divide by -9:
x = -6
Answer: x = -6
Answer:
$1.25
Step-by-step explanation:
This can best be determined using a set of linear equations that are solved simultaneously.
This pair of linear equations may be solved simultaneously by using the elimination method. This will involve ensuring that the coefficient of one of the unknown variables is the same in both equations.
Let the cost of a cookie be c, cost of a doughnut be d and that of a box of doughnut hole be h then if cost of 4 cookies, 6 doughnuts, and 3 boxes of doughnut holes is $8.15, we have
4a + 6d + 3h = 8.15
and the cost of 2 cookies, 3 doughnuts, and 4 boxes of doughnuts holes is $7.20 then
2a + 3d + 4h = 7.20
Dividing the first by 2
2a + 3d + 1.5h = 4.075
subtracting from the second equation
2.5h = 3.125
h = 1.25
The cost of a box of doughnut holes is $1.25
Answer:
It forms a 90 degree angle
Step-by-step explanation:
Since a circle is 360 degrees, 1/4 of that would be 90.
