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2 years ago

How do I solve 2/3x-1=-3

1 answer:

7 0

First of all you’d add 1 to both sides hence the -1, to get 2/3x=-2. then multiply both sides by the reciprocal of 2/3 which is 3/2. the left cancels out to get x and the right multiplies to get -3. so your answer is x=-3

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(6x10^2)/(3x10-5) help what is this in standard form?

Tasya [4]

<u>Answer: </u>

The standard form of $\frac{6 \times 10^{2}}{3 \times 10^{-5}}$ is 20,00,0000

<u>Solution: </u>

Given that $\frac{6 \times 10^{2}}{3 \times 10^{-5}}$ ---- eqn 1

To write $\frac{6 \times 10^{2}}{3 \times 10^{-5}}$ in standard form,

We know that $\bold{\frac{1}{a^{-m}} = a^{m}}$ .So $\frac{1}{10^{-5}}$ becomes $10^{5}$ .

Now eqn 1 becomes,

$= \frac{6 \times 10^{2}}{3} \times 10^{5}$ ----- eqn 2

We know that $\bold{a^{m} \times a^{n}=a^{m+n}}$ , so $10^{2} \times 10^{5} = 10^{7}$

Now eqn 2 becomes,

$= \frac{6}{3} \times 10^{7}$

$= 2 \times 10^{7}$ ---- eqn 3

Expanding $10^{7}$ :

Here 10 is the base term and 7 is the exponent value. So base term 10 is multiplied by itself 7 times.

$10^{7} = 10 \times 10 \times 10 \times 10 \times 10 \times 10 \times 10$

Now eqn 3 becomes,

$= 2 \times 10 \times 10 \times 10 \times 10 \times 10 \times 10 \times 10$

= 20,00,0000

Hence the standard form of $\frac{6 \times 10^{2}}{3 \times 10^{-5}}$ is 20,00,0000

6 0

3 years ago

If it is 7:00 AM at letter F, what time is it at letter A?

eimsori [14]

Answer:

The aswer is 1:00 AM to 1:00 PM.

Step-by-step explanation:

6 0

2 years ago

Cheryl falkowski has a collection of silver spoons from all over the world. she finds that she can arrange her spoons in sets of

Afina-wow [57]

There are a number of ways to approach this problem, including writing all the numbers that match one of the arrangements, such as for sets of 15:
.. 14, 29, 44, 59, 74, 89, 104, 119, 134, 149, 164, 179, 194 (separated by 15)
Modulo 8, these numbers are
.. 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2
This reduces the numbers of interest to those that are 3 modulo 8:
.. 59, 179 (separated by 8*15 = 120)
Looking at these modulo 7, we have
.. 3, 4
pinpointing 179 as the number of spoons in Cheryl's collection.

_____
The attachment shows a solution via graphing calculator. We simply added the absolute values of the differences of the remainders from the desired values and looked for where that sum was zero. This method, too, pointed to 179 as the solution to the problem.

7 0

3 years ago

There are 42 students on a large bus, and the rest are on a smaller bus. If 40% of the students are on the smaller bus, how many

nirvana33 [79]

42/60 * 40
= 28
28+42=70

There are 70 total students on the two buses.

8 0

2 years ago

Read 2 more answers

On a coordinate plane, solid circles appear at the following points: (negative 3, 2), (negative 3, 3), (1, 4), (1, negative 4),

goldenfox [79]

Answer: Three points

Step-by-step explanation:

(-3,2) (-3,3) (1,4) (1,-4) (2,-4) (2,-2)

Looking at these points we could say there all doesn't represent a function because each input doesn't exactly assigns one output.

for example -3 the input assigns two different outputs 2 and 3

1 the input also assigns two different outputs 4 and -4

and lastly 2 the input assigns two different outputs -4 and -2

This makes it not a function but if we take away the coordinates

(-3,3) ( 1,-4) and (2,-4) it becomes a function because you will have the coordinates (-3,2) (1,4) (2,-2) and as you could see every input has exactly one output.

8 0

3 years ago

Read 2 more answers