MATHEMATICS HIGH SCHOOL

-12x=-75-11y
-5x=-89-11y

Answers

Answer 1
Answer: 12x - 11y = 75 . . . . . . . . (1)
5x - 11y = 89 . . . . . . . . (2)
(1) - (2): 7x = -14
x = -2
From (1): 12(-2) - 11y = 75
-24 - 11y = 75
-11y = 75 + 24 = 99
y = -9
Therefore, x = -2 and y = -9

Related Questions

Not sure how to solve 2sinxcosx+cosx=0  Could you help?
When x=3 and y=5 by how much does the value of 3x^2-2y exceed the value of 2x^2-3/
A team t-shirt costs $3 per adult and $2 per child. On a certain day, the total number of adults (a) and children (c) who bought shirts was 100, and the total money collected was $275. Which of the following options represents the number of children and the number of adults who purchased team shirts that day, and the pair of equations that can be solved to find the numbers? A.) 75 children and 25 adults Equation 1: a + c = 100 Equation 2: 3a − 2c = 275 B.) 75 children and 25 adults Equation 1: a + c = 100 Equation 2: 3a + 2c = 275 C.) 25 children and 75 adults Equation 1: a + c = 100 Equation 2: 3a − 2c = 275 D.) 25 children and 75 adults Equation 1: a + c = 100 Equation 2: 3a + 2c = 275
Jacob wants to make a graph to show the relationship between temperatures in Fahrenheit and degrees Celsius. He plots the following points:(11, −11.7), (15, −9.4), (25, −3.9), (35, 1.7), (45, 7.2) He uses the following steps to plot the graph: 1.Label origin as (0, 0). 2.On x-axis, label Temperature in Fahrenheit. 3. On y-axis, label Temperature in degrees Celsius. 4.The scale on x-axis starts from 0 and goes up to 700 at intervals of 20. 5.The scale on the y-axis starts from −12 and goes up to 12 at intervals of 2. Which of the following best describes the graph? It will not be spread out horizontally across the entire coordinate plane because in Step 4, Jacob selected an incorrect scale on the x-axis. It will not be spread out vertically across the entire coordinate plane because in Step 5, Jacob selected an incorrect scale on the y-axis. It will not be spread out horizontally across the entire coordinate plane because in Step 2, Jacob plotted Fahrenheit instead of Celsius on the x-axis. It will not be spread out vertically across the entire coordinate plane because in Step 3, Jacob plotted Celsius instead of Fahrenheit on the y-axis.
Identify the pattern for 16, 4, 8, 2

The relative frequency of green on a spinner is 5/6. How many times would you expect a green in 300 spins?

Answers

5/6*300=250
250 spins

Lisa is asked to draw a quadrilateral with the following specifications. adjacent angles are supplementary opposite angles are supplementary the measures of two adjacent sides are both 5 inches Which of the following statements about this quadrilateral is true.

Answers

Answer:

B (i do also slightly lean towards C, but i'm pretty sure it would be B because it gives a specific measurement)

Step-by-step explanation:

If all angles that are either adjacent or opposite are supplementary, all angles must be 90°

If at all times adjacent sides are 5 inches, all sides are equal.

Knowing this, it has to be a square because all angles would be 90° and all sides would be equal.

Evaluate the following expression using the values given: Find 4x to the second power minus y minus 2z

X=-2
Y=3
Z=-1

Answers

The answer isss.. 15!

The difference of two times a number and eighteen is sixteen.

Answers

the answer would be 17

A bird flies due east for 600 meters at a constant speed of 10 m/s. What is the bird's acceleration? (a) with no change in velocity, there is no acceleration (b) 60 m/s (c) 6 m/s/s (d) 60 m/s/s (e) not enough information is given

Answers