MATHEMATICS HIGH SCHOOL

Plsss help i’ll give brainly...but pls give a correct answer

Answers

Answer 1

Answer:

Answer:

-8

Step-by-step explanation:

The coefficient is the number in front f the variable so in this case the number in front of X to the third is -8

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Consider the following system of equations: y = −2x + 3 y = x − 5 Which description best describes the solution to the system of equations? Lines y = −2x + 3 and y = 3x – 5 intersect the x-axis. Line y = −2x + 3 intersects line y = x − 5. Lines y = −2x + 3 and y = 3x − 5 intersect the y-axis. Line y = −2x + 3 intersects the origin.

HELPPP PLEASEEEEEEEEE

Answers

Given the equation, y - x = 3x + 7

Add x to both sides to isolate y:

y - x + x = 3x + x + 7

y = 4x + 7 (This is the linear equation in slope-intercept form, y = mx + b). The rate of change is also the slope of the line, m = 4.

Therefore, the rate of change is 4.

Please mark my answers as the Brainliest if you find my explanations helpful :)

Y=4x+7

So 4 is the rate of change because if you solve for y, x is the rate of change

Determine whether the sequence is arithmetic or geometric.sequence 1: 32, 16, 0, –16, ...
sequence 2: 32, 16, 8, 4, ...
which of the following statements are true regarding sequence 1 and sequence 2.

sequence 1 is arithmetic and sequence 2 is geometric.
both sequences are arithmetic.
both sequences are geometric.
sequence 2 is arithmetic and sequence 1 is geometric.

Answers

S1.
32, 16, 0, -16, ...
It's an arithmetic sequence:
$a_1=32;\ d=16-32=-16\n\na_n=a_1+(n-1)d\n\na_n=32+(n-1)\cdot(-16)=32-16n+16=48-16n$

S2.
32, 16, 8, 4, ...
It's a geometric sequence:
$a_1=32;\ r=16:32=(1)/(2)\n\na_n=a_1r^(n-1)\n\na_n=32\cdot\left((1)/(2)\right)^(n-1)$

Answer: sequence 1 is arithmetic and sequence 2 is geometric.

Change these fractions into percentages 7/10, 2/5, 1/3, 17/20

Answers

Change them into fractions over 100, and the numerator will be the percentage.

7/10 = 70/100 = 70%

2/5 = 40/100 = 40%

1/3 = 33.33/100 = 33.33%

17/20 = 85/100 = 85%

percent means parts out of 100 so
exg 23/100=23%

just convert the bottom number to 100
7/10 times 10/10=70/100=70%

2/5 times 20/20=40/100=40%

1/3 times 33.333/33.333=33.3333/99.999 close enought 33.33%

17/20 times 5/5=85/100=85%

Sarah is planning to spend a week at her friend’s summer house in Miami Beach. All meals will be provided by her friend’s parents, but Sarah still needs at least $500 to pay for her airfare and personal expenses for the week. She is selling bracelets and earrings to fund her trip. A graph representing this situation is shown below.Questions:
1.This region represents the combinations of bracelets and earrings that Sarah must sell in order to get a minimum of $500 profit to pay for her trip.
2.This region represents the area where Sarah sells a lot of earrings but not enough bracelets to reach her $500 goal.
3.This region represents the area where Sarah sells a lot of earrings but not enough bracelets to reach her $500 goal.

graph below ∨↓↓↓↓

Answers

Given:
x > 50
2x + 3y > 500

Bracelet is represented by x.
Earrings is represented by y.

Since x > 50 let us assume that x = 50 to get the value of y in the inequality equation.

2x + 3y > 500
2(50) + 3y > 500
100 + 3y > 500
-100    -100
3y > 400
  ÷3   ÷3
y   > 133 1/3

x > 50 ; y > 133 1/3

Let us assume that no bracelet was sold. x = 0 ; y =?

2x + 3y   > 500
2(0) + 3y   > 500
0 + 3y   > 500
÷ 3     ÷3
  y   > 166 2/3

Let us assume that no earrings was sold; y = 0 ; x = ?
2x + 3y   > 500
2x + 3(0) > 500
2x + 0 > 500
2x > 500
÷2   ÷2
x > 250

Let us assume that we sold have of each item.
x = 250/2 = 125 ; y = 166 2/3 ÷ 2 = 100

2x + 3y > 500
2(125) + 3(100) > 500
250 + 300   > 500
550   > 500

To get at least $500, Sarah needs to sell at least 100 bracelets and 100 earrings.

the first one is region 2 and the second is region 3 i think

The width of a rectangle is three units less than the length. The area of the rectangle is 4 units. What is the length, in units, of the rectangle

Answers

length is 4

area= l*w

4-3=1

4*1= 4

A fast food restaurant sells two sizes of fries, small and large. On friday they sold 81 fries total. If 9 of the fries were small, what is the ratio of large fries sold to small fries sold?