10 + 5d = 13.50
5d = 13.50 - 10
5d = 3.50
d = 3.50/5
d = 0.7.......so one large drink (d) cost 70 cents
Inequalities are used to relate unequal expressions
The greatest whole number of square yards the teacher can buy is 4
The inequality is given as:
When the <em>number of square yards </em>of the white fabrics is 10.
It means that: x = 10
So, we have:
Collect like terms
Divide both sides by 10
The above inequality means that:
The greatest whole number of square yards the teacher can buy is 4
Read more about inequalities at:
brainly.com/question/15137133
Answer:
35
Step-by-step explanation:
They are vertical angles which means angles opposite each other will be equal
Answer:
Isosceles
Step-by-step explanation:
triangle-a triangle with at least 2 congruent sides
Answer:
one solution
Step-by-step explanation:
* Lets start to solve the question
- The 1st equation x - y = -4
- The 2nd equation 3x + y = 8
- We will use the elimination method to solve this system of equation
∵ x - y = -4 ⇒ (1)
∵ 3x + y = 8 ⇒ (2)
- Add the two equation (1) and (2) to eliminate y
∴ x + 3x = -4 + 8
∴ 4x = 4
- Divide both sides by 4
∴ x = 1
- Substitute the value of x in equation (1) or equation (2) to find
the value of y
- We will use equation (1)
∴ 1 - y = -4
Subtract 1 from both sides
∴ -y = -5
- Divide both sides by -1
∴ y = 5
∴ The solution is (1 , 5)
* The system has one solution
