Answer: Linear equations in two variables. If a, b, and r are real numbers (and if a and b are not both equal to 0) then ax+by = r is called a linear equation in two variables. (The “two variables” are the x and the y.) The numbers a and b are called the coefficients of the equation ax+by = r.
Step-by-step explanation:
Answer:
24e + 13
Step-by-step explanation:
first you need to distribute in order to get rid of the parenthesis which gives u 24e then u add the 6 and 7 giving u 13
9514 1404 393
Answer:
192 cm²
Step-by-step explanation:
The total surface area is the sum of the two triangular base areas and the three rectangular lateral face areas.
SA = 2(1/2)(6 cm)(8 cm) + (6 cm +8 cm +10 cm)(6 cm) = 192 cm²
The surface area of the figure is 192 square centimeters.
Step-by-step explanation:
the parenthesis are there just to confuse you. Since there are no negatives or numbers outside of the parenthesis, you do not need them.
2x^3-5+x^3+3
add like terms
3x^3-2
Hope that help :)
As you have already given the equation and what each variable represents, I'll restate it here;
C = 15x + 50; C represents the total cost, and X represents the number of family members.
The total cost was $125, so we should substitute C with 125.
125 = 15x + 50; now, all we have to do is solve for x with basic algebra.
First, let's isolate the variable, so subtract 50 from both sides of the equation.
15x = 75; divide both sides by 15 to solve for x, the number of family members that went to the park.
15x / 15 = x
75 / 15 =5
We are left with the following solution:
x = 5
We can conclude that 5 family members went to the park.
I hope this helps!
