All categories

3 years ago

Pease help with this question 3y=83

Mathematics

2 answers:

Kipish [7]3 years ago

6 0

3y = 83
y = 83/3
y = 27.67
<em />
if that were the only data

satela [25.4K]3 years ago

5 0

To solve for y, you have to divide both sides by 3 to cancel the 3. so when you divide 3y by 3, the "3" goes away and the "83" is reduced to 26 (2/3) so your equation is:
y = 26 (2/3).

hope this helps (;

You might be interested in

What is the area of the figure below

cestrela7 [59]

There is no picture

6 0

4 years ago

Name the kind or kinds of symmetry the following figure has: A

denpristay [2]

It is a straight line of symmetry because if you have a paper A and you fold it, it will form a straight line, and that is also meaning a straight line of symmetry. If you fold it any other way, it will not be a line of symmetry.

Hope this helps you ;)

6 0

3 years ago

In science class, the girl to boy ratio is 3 to 7. If there are 50 students total in class, how many are boys

Rzqust [24]

Step-by-step explanation:

3 girls:7 boys

50 students total

You have to multiply 7 by 5 to get 35

If you already multiplied one side by five, then you have to multiply the other side by five

3 times 5 is 15

15 + 35 = 50

So the

Answer is

35 boys

3 0

3 years ago

A thermometer is taken from an inside room to the outside, where the air temperature is 20° f. after 1 minute the thermometer re

fomenos

The change in the temperature is proportional to the difference in temperatures. Let's call the initial temperature of the room and the thermometer $E_0$ and the current temperature $E(t)$ where $t$ is the elapsed time in minutes. The outside temperature is 20 F.

Newton's Law of Cooling:

$E(t) - 20 = (E_0 - 20) e^{- k t}$

We're given $E(1)=70 \textrm{ and } E(5)=45$

$70-20 = (E_0 - 20) e^{-k}$

$45-20 =(E_0 - 20) e^{-5k}$

Dividing,

$\dfrac{50}{25}=e^{4k}$

$k = \dfrac 1 4 \ln 2$

Now,

$E(t) - 20 = (E_0 - 20) e^{- k t}$

$E_0 = 20 + (E(t) - 20)e^{k t}$

$E_0 = 20 + (E(1) - 20)e^{k}$

$E_0 = 20 + (70 - 20)e^{\ln 2/4}$

$E_0 = 20 + 50 \cdot 2^{1/4} \approx 79.46 \textrm{ degrees F}$

3 0

4 years ago

Plss help me with this 1 quick question pls giving brailiest

inysia [295]

Answer:

I believe j represents 9. I think k is either 6 or 5.

Step-by-step explanation:

Subtracting 11 makes 27, of which j seems to be approximately two thirds of. I could be wrong though

4 0

3 years ago