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andrew11 [14]
3 years ago
5

Richard and Tom each mow lawns in the summer to earn money. The lawns they mow are all approximately the same size. Richard’s ea

rnings are shown in the graph and Tom’s earnings are shown in the table.
Tom’s Earnings

Number of Lawns Earnings
3 $22.50
8 $60
12 $90
15 $112.50

How much money, in dollars, does each person earn per lawn mowed?

Richard earns $___per lawn.

Tom earns $___per lawn.

Mathematics
1 answer:
Ratling [72]3 years ago
7 0

Answer$7.50

Step-by-step explanation:

Divide each amount by the number of lawns

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Justo ayer fue el cumpleaños de Mauricio. Si a la edad e Mauricio, le sumo 13, al resultado le resto 10, luego al nuevo resultad
bezimeni [28]

Answer:

Mauricio nació en el año 2000.

Step-by-step explanation:

Supóngase que el cumpleaños se celebra en el año 2020, si x es la edad actual de Mauricio, entonces la expresión matemática que traduce el enunciado del problema es:

\frac{(x+13)-10}{23} +20 = 21

Ahora, se desarrolla y se simplifica la ecuación:

\frac{x+3}{23}+20 = 21

\frac{x+3}{23} = 1

Se despeja x:

x +3 = 23

x = 20

Mauricio tiene 20 años.

Ahora, el año de nacimiento de Mauricio es la sustracción de la edad de Mauricio del año actual:

y = 2020-20

y = 2000

Mauricio nació en el año 2000.

3 0
3 years ago
A ball is thrown in the air from a ledge. Its height in feet is represented by 
Genrish500 [490]

check the picture below.

\bf \stackrel{f(x)}{0}=-16(x^2-6x-7)\implies 0=x^2-6x-7 \\\\\\ 0=(x-7)(x+1)\implies x= \begin{cases} \boxed{7}\\ -1 \end{cases}

it cannot be -1, because is a seconds amount after moving.

8 0
3 years ago
What is 5% of 80? Round to the nearest hundredth.
AysviL [449]

Answer:

4

Step-by-step explanation:

.05x80=4

7 0
2 years ago
Read 2 more answers
Find the area of a trapezoid with b1 = 3 cm, b2 = 22 cm, and h = 6 cm.
Molodets [167]
Area of trapezoid = Average length of parallel lines x height

3+22=25
25/2= 12.5
12.5x6=75cm^2
6 0
2 years ago
Read 2 more answers
HELP PLEASE ASAP
olga2289 [7]

Answer: a) degree and sign

b) end behavior: left side → +∞, right side → -∞

c) x-intercepts: x = -1.3, 0.3, 1.0

<u>Step-by-step explanation:</u>

end behavior can be determined by two things:

1) the degree of the polynomial:

  • if the degree is an even number, then the end behavior will be the same for both the left and right sides.
  • if the degree is an odd number, then the end behavior will be different for both the left and right sides.

2) the sign of the leading coefficient:

  • If the leading coefficient is positive, then the end behavior of the right side goes to positive infinity
  • If the leading coefficient is negative, then the end behavior of the right side goes to negative infinity

W(x) = -5x³ + 7x - 2

Degree: 3 (odd)

Leading Coefficient: negative

So, end behavior is: right side goes to negative infinity, right side goes to positive infinity.


See attachment for x-intercepts. <em>I set the x-axis to represent tenths </em>

5 0
2 years ago
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