3 years ago

3.) a + 40 = 0 What is the value of a? a =

Mathematics

2 answers:

Rus_ich [418]3 years ago

3 0

Answer:

a= -40

Step-by-step explanation:

Dmitry [639]3 years ago

3 0

Answer:

a = - 40

Step-by-step explanation:

a+40=0

First way:

Transpose 40 to the other side (to isolate a) - when transposing signs change ( from positive to negative)

Second way:

Subtract both side what 40 (to cancel 40 and isolate a)

* you have to always isolate variables

You might be interested in

Jeanette can walk 1 km in 11 minutes. At the same rate, how far can she walk in 55 minutes?

gladu [14]

11 minutes = 1 km

11 x 5 = 55 minutes
1 x 5 = 5 km.

She can walk 5 km in 55 minutes.

3 0

3 years ago

Read 2 more answers

Three people pull simultaneously on a stubborn donkey. Jack pulls directly ahead of the donkey with a force of 90.5 N , Jill pul

Radda [10]

Answer:

Fn= 174.9 N : Magnitude of the net force the people exert on the donkey.

Step-by-step explanation:

We find the components of the forces in x-y-z

Force of Jack in z =F₁z=90.5 N in direction (+z)

Force of Jill in x = F₂x= -82.3*cos45°= - 58.19 N (-x)

Force of Jill in y =F₂y=-82.3*sin45°= + 58.19 N (+y)

Force of Jane in x =F₃x=125*cos45°= + 88.4 N (+x)

Force of Jane in y =F₃y=125*sin45°= + 88.4 N (+y)

Calculating of the components of the net force the people exert on the donkey.

Fnx= F₂x+F₃x=( - 58.19+ 88.4 )N=30.2N (+x)

Fny= F₂y+F₃y=( 58.19+88.4 ) = 146.59 N (+y)

Fnz =F₁z=90.5 N (+z)

Calculating of the magnitude of the net force the people exert on the donkey.

$F_{n} =\sqrt{(F_{nx})^{2}+(F_{ny}) ^{2} +(F_{nz}) ^{2} }$

$F_{n} =\sqrt{(30.2)^{2}+( 146.59) ^{2} +(90.5) ^{2} }$

$F_{n} = 174.9 N$

7 0

3 years ago

Give the angle pair name to justify your work equation setup and solve for x.<br> 6x - 24 2x + 12°

marta [7]

Answer:

x = 9

Step-by-step explanation:

4 0

3 years ago

A(n) __________ is an operation that reverses the effect of another operation.

Studentka2010 [4]

An inverse operation reverses the effect of another operation. Answer is C

8 0

3 years ago

a corn vendor at a farmers market was selling a bag of 8 ears of corn for $2.56 anithert vendor was selling a bad of 12 for 4.32

maria [59]

Answer:

8 for 2.56

Step-by-step explanation:

THE ANSWER IS IN CENTS.

2.56 ÷ 8 = 0.32 per ear

4.23 ÷ 12 = 0.36 per ear

3 0

3 years ago