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Gemiola [76]
3 years ago
15

A. 3x – 1=7 B.3r = 8 1) How can we get Equation B from Equation A? help

Mathematics
1 answer:
VMariaS [17]3 years ago
6 0

Answer:

The answer is C.

Step-by-step explanation:

You add,, you don't multiply. Both A and B are not choices.

One of C or D is correct.

That r should be an x according to the attachment.

The answer is add 1 to both sides.

3x - 1 = 7

 <u>  +1    +1</u>

3x = 8

So you are adding 1 to both sides. The answer is C

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HELP NEEDED : Solve this using ELIMINATION:<br><br> 8x + 8y = 240<br> 4x + y = 54<br><br> Please!!!!
Licemer1 [7]

4x + y = 54

8x + 2y = 104

8x + 8y - (8x + 2y) = 240 - 104

6y = 136

y=22 2/3

4x+ 22 2/3 = 54

4x= 31 1/3

x= 7 5/6

4 0
4 years ago
Can someone please help me?! 100% sure please
AleksAgata [21]
3 + 3/4x > = 15
3/4x > = 15 - 3
3/4x > = 12
x > = 12 / (3/4)
x > = 12 * 4/3
x > = 48/3 = 16 sessions <==
================
-p - 4p >  -10
-5p > -10
p < -10/-5
p < 2 <===
===============
-3 - 6(4x + 6) > = 9
-3 - 24x - 36 > = 9
-24x - 39 > = 9
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x < = -48/24
x < = -2 <===
=================
2x - 2 > = 10
2x > = 10 + 2
2x > = 12
x > = 12/2
x > = 6........so ur solution set is {6,7}

8 0
3 years ago
You obtain a dataset from a random sample. • You double-checked your dataset, and there were no typos, and no errors. • All cond
Pepsi [2]

Answer:

Interval is given with 97% confidence. Thus there is 3% probability that interval is not true.

Step-by-step explanation:

In Statistics, estimated intervals are given with some confidence level. In this example person develop the interval with 97% confidence.

<em>Statistically</em>, this means that the person can be 97% sure (not 100%)  that population mean is 74.3 < µ < 78.3. There is still 3% probability that population mean falls outside of the interval.

Small sample size may also lead wrong estimates.

7 0
3 years ago
Question 6 of 15, Step 1 of 1
OLga [1]

Answer:

3 hours

Step-by-step explanation:

369 divided by (58+65)

8 0
4 years ago
The volume of the box shown in the diagram is 40π3 cubic units. Find the length of ‘x’.
Nimfa-mama [501]

Answer:

4: 4\pi^2

Step-by-step explanation:

2\pi x 5 x x = 10\pi x

10\pi x = 40\pi ^3}

x = 4\pi^2

7 0
3 years ago
Read 2 more answers
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