1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NikAS [45]
3 years ago
7

The table shows how much Li earns for moving different numbers of lawns. Write an algebraic expression that describes the total

earnings for n lawns.

Mathematics
1 answer:
olga2289 [7]3 years ago
8 0

Answer:

15n

Step-by-step explanation:

Given

The above table

Required

The formula of the table

First, calculate the slope (m)

m = \frac{y_2 - y_1}{n_2 - n_1}

Where:

<em>n = Number of Lawns</em>

<em>y = Earnings</em>

(n_1,y_1) = (2,30)

(n_2,y_2) = (5,75)

So, we have:

m = \frac{75 - 30}{5 - 2}

m = \frac{45}{3}

m = 15

The equation is then calculated as:

y = m(n- n_1) + y_1

This gives:

y = 15(n- 2) + 30

y = 15n- 30 + 30

y = 15n

Hence:

<em>B is correct</em>

You might be interested in
You drop a ball from a height of 1.5 meters
alisha [4.7K]
The bell falls and it hits the surface it is above
7 0
3 years ago
Help pls anyone!!! plsss
murzikaleks [220]

Answer:

1.) 22+(33+44)

2.) (5+3)+(1+9)

3.) (-a+d)+(-c+b)

Step-by-step explanation:

Associative property of addition: Changing the grouping of addends does not change the sum. For example,

(2+3)+4= 2+(3+4)

No matter how you rearrange the numbers, they will always add to the same amount.

3 0
3 years ago
Read 2 more answers
Y = 2x - 3 x + y = 3 What is the solution set?
klio [65]

y=2x-3 an x+y=3

subsitution

since y=2x-3, put (2x-3) wherever you see y

put taht in the other equation

x+y=3

x+(2x-3)=3

x+2x-3=3

3x-3=3

add 3 to both sides

3x=6

divide by 3

x=2

subsitute back

y=2x-3

y=2(3)-3

y=6-3

y=3


so the solution set in (x,y) form is (2,3)

6 0
3 years ago
4 2/5 divided by 1 1/5
Rashid [163]
The answer is: 3 and 1/3

22/5 divided by 6/5.......................
22/5 times 5/6 = 110/30
110/ 30 = 3 1/3
4 0
3 years ago
Read 2 more answers
The table in the lesson shows the number of sets of twins, triplets, quadruplets, and quintuplets registered at a twin conventio
Korolek [52]

Answer:

  5494

Step-by-step explanation:

Assuming all members of each set registered, the total number is ...

  2(2697) +3(29) +4(2) +5(1) = 5494

__

Since you're concerned with order of operations, perhaps you want to see the working out.

  = 5394 + 87 +8 +5 . . . . perform all the multiplications

  = 5481 +8 +5 . . . . . . . . . perform addition left to right

  = 5489 +5

  = 5494

8 0
4 years ago
Other questions:
  • How do I multiply decimals? Examples for this question please
    8·1 answer
  • Evaluate 20-3x when x=2 and when x=3 which gives you the larger value
    12·1 answer
  • How much interest is earned on $583 at 8% for six years
    15·1 answer
  • What is the experimental probability that at least one of the coins landed on heads? Express the probability as a decimal.
    14·2 answers
  • If xy + 6ey = 6e, find the value of y'' at the point where x = 0.
    14·1 answer
  • Joey, Chloe and Haddie are driving go-carts around a track. Joey takes 14 minutes, Chloe takes 12 minutes and Haddie takes 10 mi
    13·1 answer
  • What would be the probability of selecting a rectangle from the set of squares?
    14·1 answer
  • List the factor pairs of the number.<br><br> 9. 22
    14·1 answer
  • Solve the quadratic equations below.<br> 3x2 + 22x + 35 = 0
    15·1 answer
  • Plant a starts from 2 incher and grows at a constsnt rate of 3 inches every 4 week
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!