1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nirvana33 [79]
3 years ago
13

benny uses 2/5 grams (G) of toothpaste each time he brushes his teeth. If benny buys 30-g tube, how many times will be able to b

rush his teeth?
Mathematics
1 answer:
worty [1.4K]3 years ago
5 0

Answer:

75

Step-by-step explanation:

First divide 2/5 to get 0.4. Then divide 30 by 0.4 to get the answer. A simple way to think about it is how many 0.4 grams are in 30 gram tube.

You might be interested in
Which equation represents a linear function?
devlian [24]

Answer:

y = 9 - x

Step-by-step explanation:

y = 9 - x

3 0
3 years ago
Read 2 more answers
X+(x+1)+(×+2)=336. the question is the sum of three consecutive integers is 336​
vodomira [7]

Answer:

x = 111

Step-by-step explanation:

1.) x + (x + 1) + (x + 2) = 336

2.) x + x + 1 + x + 2 = 336

3.) 3x + 3 = 336

4.) 3x = 333

4.) x = 111

Check Work:

1.) 111 + (111 + 1) + (111 +2) = 336

2.) 111 + 111 + 1 + 111 + 2 = 336

3. ) 222 + 1 + 111 + 2 = 336

4.) 222 + 114 = 336

5.) 336 = 336

6 0
3 years ago
For what value of x will the line passing through the points A(x+14, 5) and B(2−3x, 8) be vertical?
trapecia [35]

Answer:

x=-3

Step-by-step explanation:

we know that

The slope of a vertical line is undefined

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have

A(x+14, 5) and B(2−3x, 8)

substitute

m=\frac{8-5}{(2-3x)-(x+14)}

m=\frac{3}{2-3x-x-14}

m=\frac{3}{-4x-12}

so

If the slope is undefined

then

The denominator must be equal to zero

-4x-12=0

solve for x

4x=-12\\x=-3

5 0
3 years ago
5/8x + 4 = 3/8x + 12
Leya [2.2K]

Answer:

      x = 32

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    5/8*x+4-(3/8*x+12)=0

Step by step solution :

Step  1  :

           3

Simplify   —

           8

Equation at the end of step  1  :

   5         3

 ((—•x)+4)-((—•x)+12)  = 0

   8         8

Step  2  :

Rewriting the whole as an Equivalent Fraction :

2.1   Adding a whole to a fraction

Rewrite the whole as a fraction using  8  as the denominator :

         12     12 • 8

   12 =  ——  =  ——————

         1        8  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

2.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

3x + 12 • 8     3x + 96

———————————  =  ———————

     8             8  

Equation at the end of step  2  :

   5               (3x + 96)

 ((— • x) +  4) -  —————————  = 0

   8                   8    

Step  3  :

           5

Simplify   —

           8

Equation at the end of step  3  :

   5               (3x + 96)

 ((— • x) +  4) -  —————————  = 0

   8                   8    

Step  4  :

Rewriting the whole as an Equivalent Fraction :

4.1   Adding a whole to a fraction

Rewrite the whole as a fraction using  8  as the denominator :

        4     4 • 8

   4 =  —  =  —————

        1       8  

Adding fractions that have a common denominator :

4.2       Adding up the two equivalent fractions

5x + 4 • 8     5x + 32

——————————  =  ———————

    8             8  

Equation at the end of step  4  :

 (5x + 32)    (3x + 96)

 ————————— -  —————————  = 0

     8            8    

Step  5  :

Step  6  :

Pulling out like terms :

6.1     Pull out like factors :

  3x + 96  =   3 • (x + 32)

Adding fractions which have a common denominator :

6.2       Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

(5x+32) - (3 • (x+32))     2x - 64

——————————————————————  =  ———————

          8                   8  

Step  7  :

Pulling out like terms :

7.1     Pull out like factors :

  2x - 64  =   2 • (x - 32)

Equation at the end of step  7  :

 2 • (x - 32)

 ————————————  = 0

      8      

Step  8  :

When a fraction equals zero :

8.1    When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

 2•(x-32)

 ———————— • 8 = 0 • 8

    8    

Now, on the left hand side, the  8  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  2  •  (x-32)  = 0

Equations which are never true :

8.2      Solve :    2   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation :

8.3      Solve  :    x-32 = 0

Add  32  to both sides of the equation :

                     x = 32

One solution was found :

                  x = 32

Step-by-step explanation:

6 0
3 years ago
PLEASEE HELP ME 60 POINTS!!!
kompoz [17]

Answer:

1. No Solution

2. One solution

3. Infinitely many solutions

Step-by-step explanation:

Let us try to solve each of the system of equations one by one.

1.   y =-4x - 5

    y = -4x + 1

This gives

-4x- 5 = -4x + 1

which has no solutions.

 2. -3x+y=7

     2x-4y=-8

let us write them in y-intercept form

y=3x+7

y=\frac{1}{2}x+2

and equate them

y=3x+7=\frac{1}{2}x+2

this gives x=-2 and

y=-3(-2)+7 = 1

This equation has solutions.

3. 3x-y=4

 6x-2y =8

Notice that the second equation is just the first equation multiplied by 2, or

2(3x-y=4)\rightarrow (6x-2y=8)

<em>so these are identical equations and therefore</em> this system has infinitely many solutions.

Thus we have

1. No Solution

2. One solution

3. Infinitely many solutions

3 0
3 years ago
Other questions:
  • Suppose babies born in a large hospital have a mean weight of 3316 grams, and a standard deviation of 324 grams. If 83 babies ar
    5·1 answer
  • Question 3 Unsaved
    5·2 answers
  • $750,000 is what percent of $3,000,000?<br> Please help
    6·1 answer
  • Is a home an asset or liability
    12·2 answers
  • The graph of f(x) = |x – h| + k contains the points (–6, –2) and (0, –2). The graph has a vertex at (h, –5). Describe how to fin
    5·2 answers
  • A group of fourteen friends got together for pizza. Everyone ordered their own small pan, thinking they were personal pan pizzas
    10·1 answer
  • Which expression is equivalent to —2/3(6x + 15)
    13·1 answer
  • What is the measure of x?
    7·2 answers
  • Which line has a slope of -3?
    7·1 answer
  • Problema propuesto Pablo tiene un terreno con forma Su lado desigual mide 8 m y el perímetro mide 28 m. Él quiere colocar césped
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!