please solve the following problem and show how u got it

Answer:

The answer is B) a = -7/16

Step-by-step explanation:

3/4 + 4a/7 = 6a/7 + 7/8

By transposing, we get

=> 3/4 - 7/8 = 6a/7 - 4a/7

=> (by taking LCM) 6-7/8 = 6a-4a/7

=> -1/8 = 2a/7

=> -7 = 16a (by cross multiplication)

=> a = -7/16

Answer:

  1) 2^9 = 512

  2) 2^(3t) = 2^6 for t=2

Step-by-step explanation:

1) An exponent is used to signify repeated multiplication. Here, the factor 2 is repeated 9 times, so the expression can be written using an exponent as ...

  2^9

Using any of a variety of means, the value of this expression can be found to be ...

  2^9 = 512

__

2) Assuming the bacteria reproduce by multiplying by some factor in a given time, we can divide the original expression into 3 parts:

  (2×2×2) × (2×2×2) × (2×2×2)

If this represents the number after 3 hours, then the number after 2 hours is expected to be ...

  (2×2×2) × (2×2×2) = 2^6

That is, there will be (2 h)/(3 h) = 2/3 times as many multiplications by a factor of 2. (2/3)(9) = 6 will be the exponent for the number after 2 hours.

Answer:

5 shapes, 3 rectangles 2, Triangles

Step-by-step explanation:

Answer:

5 presents an hour

Step-by-step explanation:

1 2/3 · 3 = 5

I hope this helps!!!

Answer:

6 minutes

Step-by-step explanation:

every minute is 120

720/120=6

Answer:

x > 6

Step-by-step explanation:

-2x < -12

divide by -2

switch signs because you're dividing by a negative number

-2x/-2 < -12/-2

x > 6

Hope this helps :)

Answer:

x > 6

Step-by-step explanation:

Solve -2x <-12 for x.  Your answer must be a set of real numbers.

Divide both sides by -2.  Note that if we here divide by a negative number, we must reverse the direction of the inequality symbol:

-2x < - 12

-----   ------

 -2      -2

This becomes x > 6, "the solution set"

Answer:

3.391 Gallons Per Minute

Step-by-step explanation:

78/23=3.391

Round 3.391 to 3.4

Answer:

≈3.39130434783 gallons per minute

Step-by-step explanation:

The information we get is a ratio, describing how many gallons of water will be wasted in 23 minutes, expressed as:

[tex]78 : 23[/tex]  OR  [tex]\frac{78}{23}[/tex]

We will use the fraction, the denominator is representing the time, which in this case, is 23 minutes. We want to have the denominator as 1 to find how much water will be spilled in one minute, to do this, we can divide both the numerator and denominator by 23:

[tex]\frac{78/23}{23/23} \\ =\frac{3.39130434783...}{1}[/tex]

And of course, if there's a need to round, go ahead.

And please do not waste water!

Step-by-step explanation:

First you need to change the mixed fractions into improper fraction which is 38/6 and the other fraction turns into 3/2 now since the question was about multiplying we multiply. So there are numbers that can be reduced like 3 divided by 6 and 38 divided by 2. So now that there are simpler nmbers that cannot be reduced more we multiply and we get 19/2 which if you wanted as a mixed fraction is 9 and 1/2.

Answer:

the answer is nine and six twelfths

Step-by-step explanation:

hope that helped

Answer:

X=16*7/8= 14. by multiplying. 16 *7/8

Answer:

36:54:90

Step-by-step explanation:

you add all the parts together (2+3+5) which is 10. then you divide 180 by 10 because angles in triangle add up to 180. so 18 is one part

then you just times 18 by each part in the ratio

Answer: Please dont listen to the person above you the answer is C because a stretched bow is potential energy because the arrow is not moving but stretched holding potential energy for it to be released to its target thus making answer *C* correct

its honestly sad seing people hungry for points anyways enjoy your answer

Elastic energy, such as a stretched archery bow is not an example of kinetic energy.

Energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light.

Energy are of two types:

Potential Energy

Kinetic energy

potential energy, stored energy that depends upon the relative position of various parts of a system

Kinetic energy is the energy an object has because of its motion.

In the given options,  Elastic energy, such as a stretched archery bow is not an example of the kinetic energy. because a stretched bow is potential energy because the arrow is not moving but stretched holding potential energy for it to be released to its target.

Hence, Elastic energy, such as a stretched archery bow is not an example of kinetic energy.

To learn more on Energy click:

https://brainly.com/question/1932868

#SPJ2

Answer:

112.5 seconds

Step-by-step explanation:

Stephanie ran four laps around the school track in 7 minutes and 30 seconds. How many seconds per lap is that?

You need to do convert 7 minutes in to seconds because you cannot do anything to this unless you convert it.

Remember

1 minute = 60 seconds.

So do 7 times 60.

7 × 60

Which is 420 seconds.

Now add the 30 seconds to that.

420 + 30.

Which is 450 seconds.

Now divided 450 by 4.

450 ÷ 4.

Which is 112.5 seconds per lap.

Answer:

y=2/3x + 5

Step-by-step explanation:

Answer:

38 7/18

Step-by-step explanation:

The LCD of denominators 3, 9 and 2 is 72; all three of these divide evenly into 72.  Rewriting the original problem, we get

7 24/72 - 5 64/72 + 8 36/72

Rewriting the original quantities as improper fractions, we get

22/3 - 53/9 + 17/2

Applying the LCD, we get

24(22)       8(53)       17(36)        2764

----------- - ----------- + ---------- = ------------ = 38 7/18

   72             72           72             72

[tex]7\frac{1}{3}-5\frac{8}{9}+8\frac{1}{2}= \frac{22}{3}-\frac{53}{9} +\frac{17}{2} = \frac{132}{18}-\frac{106}{18}+\frac{153}{18} =\frac{132-106+153}{18} =\frac{179}{18}=9\frac{17}{18}[/tex]

ok done. Thank to me :>

Answer:

Your answer is $52.2 :)

Step-by-step explanation:

First, we need to find the sale, which is 40% of $70, we can do that by doing this equation: (40% x $70) / 100 = 28.  Now we minus 28 from 70 in this equation: 70 - 28 = 42.  Now we do tax, which is 10.1% of $42.  We can do the same equation, but with the new information, so the new equation is ($42 x %10.1) / 100 which is 4.2042, and since we are talking money, we can make 4.2042, 4.2 (Rounded 0.042 down). Lastly, we add $4.2 (Tax) and $48 (Discounted price) to get $52.2. You're welcome :D

Rewrite 1/5 as 4/20

Now add 2 + 3 = 5

1/20 + 4/20 = 5/20

Answer: 5 5/20

Answer:

Answer: 5 5/20

Step-by-step explanation:

1/5 as 4/20 Now add 2 + 3 = 51/20 + 4/20

Answer:

Ok I guess

Step-by-step explanation:

So first you need understand the question next send a pic maybe I can help U then

Answer:

The answer is the 3rd option

Step-by-step explanation:

As -4 -(-8)

= -4 +8

= 4

Please mark. as brainliest

Answer:

B

Step-by-step explanation:

One lower arrow is going all the way to the Four.

While |-8| = 8.

So it has it pointing to the 8. This means that 8 - -4 = 12

Answer

21

Step-by-step explanation:

Answer:

perimeter-22 yards please give brainliest!!

Step-by-step explanation:

count the squares on the OUTSIDE of the shape all around, and you'll get 22! dont worry about the coordinate points; they're just there to confuse you!! the answer is 22. please give brainliest!!

Answer:

Part A: (1, 0.6)

Part B: 10 pounds of cabbage is 6 dollars

Step-by-step explanation:

Part A: 3 divided by 5= 0.6

Part B: I already explained part b

So you can make 6 prime numbers.

Answer:

6

Hope you could get an idea from here.

Doubt clarification - use comment section.

Answer:

Hey mate!

Step-by-step explanation:

Lets take two places _ _

Now first position is filled in 4 ways (can use 2 3 7 9) that implies 4C1

then second position is filled in 3 ways since for first position we used a digit

and the condition is that not to repeat the digits, so it is done in 3C1 ways.

so the answer is 4*3 or (4C1*3C1)=12;

Answer:

-3.57

Step-by-step explanation:

2312 FPM for 2.6 minutes

2312 x 2.6 = 6011.2

28 FPM for 2 minutes

28 x 2 = 56

6011.2 descend

55 ascend

0-6011.2 = -6011.2

ans + 56 = -5955.2

:)

Answer:

Descends: 2,312 x 2.6 = - 6,011 (when rounding otherwise known as - 6,011.2, this number is negative because he is descending)

Ascends: 28 x 2 = 56

- 6,011 + 56 = -5,955 (in 4.6 minutes)

Step-by-step explanation:

I believe this is the correct answer, I'm not 100% sure though. Please tell me if I'm wrong. Have a wonderful rest of your day or night! ~ ^w^ ~

Answer:

4(-2)

Step-by-step explanation:

The correct answer is 4(-2) because the leeps to each number has 2 spaces between them and they are moving to the left of the number line that means that it is -2,and there are 4 leaps.

It takes about 4 days for the temperature to decrease by 9°F.

An equation is an expression that shows the relationship between two or more variables or numbers.

Let x represent the number of days. Given that the temperature drop decreased by 1 1/2°F each day (- 1 1/2), for it to decrease by 9°F (-9):

-1 1/2 * x = -9

-1.5x = - 9

x = 4 days

It takes about 4 days for the temperature to decrease by 9°F.

Answer:

your answer is C.

Step-by-step explanation:

Answer: I think D I might be wrong

Step-by-step explanation:

Answer:

The answer is 5/6.

Answer:

P = 68 ft

Step-by-step explanation:

The perimeter of a square is given by

P = 4s  where s is the side length

P = 4(17)

P =68

P = 68 ft

Answer

D 68 ft.

Step-by-step explanation:

Answer:

12 peaches = $8

Step-by-step explanation:

3 = $2

12 / 3 = 4

4 x $2 = 8

12 = $8

Answer:

8.00$

Step-by-step explanation:

If Three Peaches = 2.00$. Then 3 ÷ 12 = 4×2

8.00$

P.S A dozen is Twelve