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3 years ago

Find two consecutive integers whose sum is -47

Mathematics

1 answer:

irina [24]3 years ago

4 0

Answer: -24 e -23

Step-by-step explanation: Denoting the numbers by x and x + 1, and writing the equation and solving we get:

x + x + 1 = -47

2x + 1 = -47

2x = -47 - 1

2x = -48

x = - 48/2

x = -24

Therefore, the numbers are -24 and -23.

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PLEASE SOLVE THE QESTIONS

jeka57 [31]

Answer:??????????????????

Step-by-step explanation:

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1 year ago

Solve the equation 12+ 0.35×=20.05

lbvjy [14]

12 + 0.35X = 20.05
12 + 0.35X - 12 = 20.05 - 12
0.35X = 8.05
0.35X/0.35 = 8.05/0.35
X = 23
Hope this helps!!

8 0

2 years ago

El área de un rectángulo se calcula multiplicando la longitud de la base por la longitud de su altura.

ioda

<span>Para obtener el otro número, debemos dividir la base por el área. Haciendo eso obtenemos 8.6 Para verificar, multiplicamos 10.4 y 8.6. 10.4 x 8.6 = 89.44

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3 years ago

At noon, ship A is 130 km west of ship B. Ship A is sailing east at 25 km/h and ship B is sailing north at 20 km/h. How fast is

Hitman42 [59]

Answer:

answer = 12.87 km/h

Step-by-step explanation:

Given

Ship A is sailing east at 25 km/h = $\frac{dx}{dt}$

ship B is sailing north at 20 km/h = $\frac{dy}{dt}$

here x and y are the sailing at t = 4 : 00 pm for ship A and B respectively

so we get x = 4 ×25 =100 km/h

y = 4× 20 = 80 km/h

let z is the distance between the ships, we need to find $\frac{dz}{dt}$ at t = 4 hr

At noon, ship A is 130 km west of ship B (12:00 pm)

so equation will be

$z^2 = (130-x)^2 + y^2......................(i)\\put x = 100 and y = 80 \\\\we | | get \\$

$z^2 = 30^2 + 80^2\\z =\sqrt{7300} km/h$

derivative first equation w . r. to t we get

$2z\frac{dz}{dt} =$ $-2(130-x)\frac{dx}{dt}$ $+2y\frac{dy}{dt}$

$\frac{dz}{dt} =\frac{1}{z}[(x -130)\frac{dx}{dt} +y\frac{dy}{dt}]$

$\frac{dz}{dt} = \frac{( -20\times25 + 80\times20)}{\sqrt{7300} }$

$= \frac{1100}{85.44}\\ = 12.87km/h$

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2 years ago

Deanna is 2 years less than twice as old as Tyler l. The sum of their ages is 22. How old is each?

PtichkaEL [24]

they are 11 years old

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2 years ago