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3 years ago

You can solve equations by graphing. Explain how to find the solutions by a given graph.

1 answer:

6 0

For solve equation by <span>graphing, it need to come equation at the form, that it's simple to build a graph for left part of equation, and another graph for right part. The intersection of thats two graphs is the solution.

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Find the median for this list of numbers

9966 [12]

I dont understand what the list is. please reright the list then ill help u.

5 0

3 years ago

The sales of a sandwich store increased approx. linearly from $52,000 to $116,000 during the first five yrs of business. Write a

dalvyx [7]

From x=1 to x=5
x=1 is starting time
x=time
y=mx+b
m=slope
b=yintercept

slope=(y2-y1)/(x2-x1)
for points (x1,y1) and (x2,y2)

(1,52000) and (5,116000)
slope=(116000-52000)/(5-1)=64000/4=16000
y=16000x+b
find b
(1,52000)
52000=16000(1)+b
52000=16000+b
minus 16000 from both sides
36000=b

the equation is
y=16000x+36000

at 12 years, x=12
y=16000(x)+36000
y=16000(12)+36000
y=192000+36000
y=228000

sales at year 12 is $228,000

8 0

3 years ago

if the sum of two ratinol numbers is 30 and there ratio is 2:3 then find the numbers please help me with this

Vesnalui [34]

Answer:

12 and 18

Step-by-step explanation:

sum the parts of the ratio, 2 + 3 = 5

30 ÷ 5 = 6 ← value of 1 part of the ratio

2 parts = 2 × 6 = 12

3 parts = 3 × 6 = 18

The numbers are 12 and 18

8 0

3 years ago

Pls help to solve this

Marysya12 [62]

Answer:

$\underline{ \underline{ \pink{\large{ \tt{ \: S \:T \: E \: P \: - \: BY \: - \: S \: T \: E \: P \: \: E\: X\: P \: L \: A \:N\: A \: T \: I \: O \: N}}}}}:$

Q. Find the range and coefficient of range of the data :

100 , 200 , 400 , 600 , 900

⇾ Solution :

largest value ( L ) = 900 & smallest value ( S ) = 100

We know , Range is the difference between the largest and smallest value. By definition ,

1. Range = Largest value - Lowest value = 900 - 100 = $\boxed{ \sf{800}}$

2. Coefficient of range = $\large{ \tt{ \frac{L - S}{L + S} = \frac{900 - 100}{900 + 100 } = \boxed{ \tt{0.8}} }}$

Q. If f ( x ) = 9x - 8x and x belong to { 0 , 4 , 3 ,5 }. Find the range.

⇾ Solution:

When x = 0 , f ( 0 ) = 9 × 0 - 8 × 0 = 0

When x = 4 , f ( 4 ) = 9 × 4 - 8× 4 = 4

When x = 3 , f ( 3 ) = 9 × 3 - 8 × 3 = 3

When x = 5 , f ( 5 ) = 9 × 5 - 8 × 5 = 5

Range = { 0 , 4 , 3 , 5 )

♨ Hope I helped! ♡

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3 0

3 years ago

Which of the following numbers is divisible by 3, 5, and 10? OA) 15 B) 20 OC) 25 OD) 30

Sindrei [870]

Answer:

30 is the correct answer because 3times 10 =30 5 times 6 is 30 and 10 times3 is also 30

7 0

3 years ago