3 years ago

What is the value of a in the equation 3.5a-2= -1.5a+4

Mathematics

2 answers:

nevsk [136]3 years ago

7 0

Answer: a=1.2, or 6/5

Step-by-step explanation:

Natali5045456 [20]3 years ago

4 0

6/5 because you add 1.5 to both sides, the. Add 2 to both sides, then divide to get a by itself

You might be interested in

Air is being pumped into a spherical balloon at a rate of 5 cm^3/min. Determine the rate at which the radius of the balloon is i

Romashka-Z-Leto [24]

0.08 cm/min

Step-by-step explanation:

Given:

$\dfrac{dV}{dt}=5\:\text{cm}^3\text{/min}$

Find $\frac{dr}{dt}$ when diameter D = 20 cm.

We know that the volume of a sphere is given by

$V = \dfrac{4\pi}{3}r^3$

Taking the time derivative of V, we get

$\dfrac{dV}{dt} = 4\pi r^2\dfrac{dr}{dt} = 4\pi\left(\dfrac{D}{2}\right)^2\dfrac{dr}{dt} = \pi D^2\dfrac{dr}{dt}$

Solving for $\frac{dr}{dt}$ , we get

$\dfrac{dr}{dt} = \left(\dfrac{1}{\pi D^2}\right)\dfrac{dV}{dt} = \dfrac{1}{\pi(20\:\text{cm}^2)}(5\:\text{cm}^3\text{/min})$

$\:\:\:\:\:\:\:= 0.08\:\text{cm/min}$

3 0

3 years ago

Heather spent $38.50. heather spent 1/3 of what anthony spent

mariarad [96]

Answer:

Anthony spent $115.50 hope this helps

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Nancy is buying a new pair of boots. The store is having a sale and all boots are 20% off. Which expression represents the sale

leva [86]

There are two expressions that can work for this: 0.8x and x-0.2x Hope this helps :)

3 0

3 years ago

The equation ( ) has no solution.

trasher [3.6K]

Answer:

i dont see the equation

Step-by-step explanation:

sorry

6 0

3 years ago

Read 2 more answers

Select the correct statement or statements about compounds and molecules:

sineoko [7]

Answer:

1) and 3)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers