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tester [92]
3 years ago
8

PLEASE HELP

Mathematics
2 answers:
Inessa05 [86]3 years ago
6 0

Answer:

Indira should have written the equations Negative 6 + a = negative 3 and 1 + b = negative 2 in Step 2.

viktelen [127]3 years ago
4 0

Answer:

The correct answer is B

Step-by-step explanation:

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Frank has been driving at a constant speed for 3 hours, during which time he traveled 195 miles. Frank would like to know how lo
anyanavicka [17]
So it takes him 3 hours to reach a distance of 195 miles. Divide that by 3 and we get 65 miles per hour. So we get the equation of 65h=195+455.
So 195+455= 650. H will be hours. So now we have 65h=650. Now divide 65 from 650 and we get 10=h So we need to find out how many more hours he has left. So it takes him 3 hours to reach 195 so if 10 hours=650 miles then, 10-3 hours=650-195 and we get 7 hours=455 miles.
4 0
4 years ago
Define a variable and write an equation to model the situation,
lara31 [8.8K]

Answer:

Let P = Perimeter of square

Let l = Length of the sides of the square

P = 4l

6 0
4 years ago
How many miles is 1000 feet?
Jlenok [28]
Hello There!

How many miles is 1000 feet?

1000 feet = 0.189394 miles 

How many miles is half a kilometer?

0.5 kilometers = 0.310686 miles.

Hope This Helps You!
Good Luck :) 

- Hannah ❤

3 0
3 years ago
Una compañía sabe que si produce "x" unidades mensuales su utilidad "u" se podría calcular con la expresión:
belka [17]

Answer:

Δf(u) /Δx  = 92,8    ( razón de cambio promedio)

Step-by-step explanation:

La expresión de la utilidad de la empresa u(x) en función de la cantidad de unidades producidas "x" es:

u(x) = 0,04*x² + 44*x  -4000

Entonces la razón de cambio promedio en un intervalo (a ; b)  en este caso ( 620 ;  600 ) viene dada por la expresión:

Δf(x)/ Δx  =  [ f(b)  -  f(a) ]/( b - a )

en donde  f(b)  y f(a) se obtienen por sustitución de los valores a y b es decir  600 y 620 respectivamente en la función f(x) = u(x) entonces

Δf(u) /Δx  =  [ u(b)  -  u(a) ]/( b -a )        (1)

u(b) =  0,04*(620)² + 44*(620) - 4000

u(b) = 15376 + 27280 -4000

u(b) = 2656 unidades

u(a)  = 0,04* (600)²  +  44* 600  - 4000

u(a)  = 14400  +  26400  - 4000

u(a) = 800

Sustituyendo esos valores en la ecuación 1

Δf(u) /Δx  =  2656 - 800 / 620 - 600

Δf(u) /Δx  = 92,8

5 0
4 years ago
Complete the statement. Round to the nearest hundredth if necessary.<br><br> 4 ft = ?m
natima [27]

Answer:

1.2192

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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