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tigry1 [53]
3 years ago
15

Is 7x+14 equivalent to 7x-7?

Mathematics
2 answers:
dem82 [27]3 years ago
7 0
No, they would not be equivalent. First, they would have different sumbols, which they would be invested from each other, and also, there would be two different numbers that would be +7 more from that number 7 which would be 14.
Mamont248 [21]3 years ago
4 0
No, 14 and -7 are different numbers
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Please help on number 9 and 10. Will mark brainliest.
Alenkasestr [34]

Answer:

9. 1.24 mL

10. $5.93

Step-by-step explanation:

<u>Question 9:</u>

If the dosage of medicine is 0.01 mL per pound of weight of the patient, and the patient's weight is 124 pounds, we can set up an equation to solve for how much medicine the patient would need to take:

Dosage of medicine per pound of body weight x Total body weight = Total medicine required

                                                               OR

0.01 * w = m,

where w is total body weight and m is total medicine required.

To solve for the dosage the patient needs, just plug the numbers into the right places (124 for w and leave m as it is):

0.01 * 124 = m

1.24 = m

Therefore, a patient with a body weight of 124 pounds would need a 1.24 mL dosage.

<u>Question 10:</u>

To make the multiplication easier, we could rewrite 15% as 0.15 ( because 15% = 15/100):

0.15 * Total bill = Total tax payed for bill (Also can be written as \frac{15}{100} * 39.51)

                                 OR

0.15*39.51 = Total tax

5.9265 = Total tax

5.93 = Total tax <-------- (rounded)

3 0
3 years ago
Solve the following question using the elimination method :)
pochemuha
The one above me is correct
8 0
3 years ago
Help!!!!!!!!!!!!!!!!!!!!!!!!
Savatey [412]
Diameter is 9 inch so the radius is 9/2=4.5inch
Part A: 2πr=28.26inch
π=28.26/(2r)
π=28.26/(2*4.5)=3.14
Part B: πr^2=63.585inch
π=63.585inch/(4.5inch)^2
π=3.139753086 
Part C: Both of the answers are correct but Part B is more percise because it has more significant figures.
6 0
3 years ago
Read 2 more answers
Plsssss answer it’s due in 5 min plsssss
earnstyle [38]

Answer: The first one is perpendicular

The second one is parallel

The third one is neither

Hope this helps :)

Step-by-step explanation:

8 0
2 years ago
Rewrite as a cube: 64; −216; 0.008; 1/64; 4 17/27
alukav5142 [94]

64 = 4³

-216 = (-6)³

.008 = 0.2³ . . . . . . 1000 = 10³, 8 = 2³. This is 8/1000, so the cube of 2/10

1/64 = (1/4)³ . . . . . . the inverse of the first number

4 17/27 = 125/27 = (5/3)³

_____

You can see that it would be helpful to have memorized the cubes of small integers.

4 0
3 years ago
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