Answer:
The first equation should be multiplied by 9 and the second equation by −4
Step-by-step explanation:
Given the simultaneous equation
First Equation: 5x − 4y = 28
Second equation: 3x - 9y = 30
In order to eliminate y, we must make the coefficient of x in both expression to be equal.
To do that the first equation should be multiplied by 9 (negative value of the coefficient of y in equation 2)and the second equation by -4( (coefficient of y in equation 1)
The area of the missing slice is 15 inches ²
<h3>How to determine the area</h3>
From the information given, we can see that the pizza takes the form of a circle;
Area of the missing slice takes the shape of a triangle
Area of a triangle = 1/ 2 base × height
base = 10 inches
height = 3 inches
Area of missing slice = 1/ 2 × 10 × 3
Area = 1/ 2 × 30
Area = 15 inches ²
Thus, the area of the missing slice is 15 inches ²
Learn more about triangles here:
brainly.com/question/1475130
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The answer is 1. Please mark brainelist
Answer:
Some answers include 42, 48, 54, etc.
Step-by-step explanation:
Since the number must be divisible by 2: the number must be even.
For a number to be divisible by 3, the sum of the digits must be divisible by 3.
4+2=6 which is divisible by 3
4+8=12 which is divisible by 3
5+4=9 which is divisible by 3
You can extend this logic for any number from 40 up to 99 since your number must be two digits and greater than 40.
If this helped, a brainliest would be greatly appreciated!
If y = 0.75 when x = 0.5, set up a proportion -
0.75:0.5
x:3
Since you have to multiply 0.5 by 6 to get 3, multiply 0.75 by 6 to get your answer: y = 4.5 when x = 3.
