2/5 of 50 = 1/5 of 100
Answers
2/5 of 50=20
1/5 of 100=20
therefore, this is correct
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Answers
The number halfway between 27 times 38 and 33 times 38 is 1140.
What is equation modelling? What is a mathematical equation and expression?
- Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.
- A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.
- A mathematical equation is used to equate two expressions.
Given is 27 times 38 and 33 times 38.
Let the number be [x]. Then -
[x] = 1/2 x {(27 x 38) + (33 x 38)}
[x] = 1/2 x {38 x 60}
[x] = 19 x 60
[x] = 1140
Therefore, the number halfway between 27 times 38 and 33 times 38 is 1140.
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Relationship T: Veron cooked 6 hamburgers in 10 min, and thenhe cooked 9 hamburgers in 15 min.
What statement is true about these relationships?
A.Neither relationship is a direct variation.
B.Both relationships are direct variation.
C.Only relationship S is a direct variation.
D.Only relationship T is a direct variation.
Answers
S) This is because 160 ÷ 2 = 80 and 4÷2 = 2
T) This is because 1.5x6=9 and 1.5x10= 15
y = -5x2 - 10x - 15
Enter the correct answer.
Answers
Answer:
Vertex of parabola (-1, -10)
Step-by-step explanation:
For a given quadratic y = ax² + bx + c, the vertex (h, k) is found by computing h = –b/2a, and then evaluating y at h to find k. If you've already learned the Quadratic Formula, you may find it easy to memorize the formula for k, since it is related to both the formula for h and the discriminant in the Quadratic Formula: k = (4ac – b2) / 4a.
Answers
= 17/5 * 7/3
= 119 / 15
= 1.933333