John and Nelly are cleaning their house, Nelly takes 3 hours longer than John if she cleans alone, If they can do the cleaning together in 2 hours, how long can John clean all b yh himself

Answer:

72 doctors recommended the medicine

Step-by-step explanation:

If the amount deposited is a positive integer , so the amount withdrawn is represented by -3748  and the balance amount in the Manvita's account is Rs 1252 .

In the question ,

it is given that

Money deposited by Manvita =  Rs 5000 .

Money withdrawn by Manvita = Rs 3748 .

Since , amount deposited is a positive integer ,

So, the amount withdrawn will be a negative integer

Balance in Manvita's account = Money deposited + Money Withdrawn

Substituting the values , we get

Balance in Manvita's account = 5000 + (-3748)

= 5000 - 3748

= 1252

Therefore , if the amount deposited is a positive integer , so the amount withdrawn is represented by -3748  and the balance amount in the Manvita's account is Rs 1252 .

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The equation x + |y| = y + |x| that contains the absolute values of x and y, is satisfied when the values of x and y are given by the iniquities;

The absolute value or modulus of a real number gives its non negative value irrespective of the sign (positive or negative) of the number.

The given equation is presented as follows;

x + |y| = y + |x|

The possible values of x and y are;

-10 ≤ x ≤ 10 and -10 ≤ y ≤ 10

Collecting the absolute values of the equation on one side gives;

|y| - |x| = y - x, which gives;

+y - +x = y - x

The equation is therefore satisfied when both x and y are larger than zero.

Therefore, x + |y| = y + |x|, gives;

0 ≤ x ≤ 10, and 0 ≤ y ≤ 10

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The graph of the image of rectangle CDEF after a translation 4 units left and 9 units up is as shown below.

In this question, we have been given the image of rectangle CDEF.

The coordinates of rectangle CDEF are:

C = (-6, -6)D = (-2, -6)E = (-2, 0)F = (-6, 0)

The rectangle CDEF is a translated 4 units left and 9 units up.

When rectangle CDEF is a translated 4 units left then the coordinates of rectangle would be,

C' = (-10, -6)

D' = (-6, -6)

E' = (-6, 0)

F' = (-10, 0)

Then rectangle C'D'E'F' is translated 9 units up  then the coordinates of rectangle would be,

C'' = (-10, 3)D'' = (-6, 3)E'' = (-6, 9)F'' = (-10, 9)

The graph of the image of rectangle CDEF after a translation 4 units left and 9 units up is as shown below.

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The value of (-14) 3 when evaluated is -42.

Given,

The expression = (-14) 3

We have to evaluate this and find the value.

Evaluating an expression:

Finding the value of an algebraic expression when a specified integer is used to replace a variable is known as evaluating the expression. When evaluating an expression, we change the variable in the expression to the given number and then use the order of operations to simplify the expression.

That is,

(-14) 3 = -14 × 3 = -42

Therefore, the value of (-14) 3 when evaluated is -42

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Step-by-step explanation:

it is a linear equation

Normally two if them are given together to solve

hope it helps

Answer:

Gabriel spent $12 in just Donuts. If fritters are $2 a piece, he could buy 2 fritters at max. Perhaps he bought an extra donut to equal $17.

Step-by-step explanation:

Answer:

7 donuts and 5 fritters

Step-by-step explanation:

Answer:

See below

Step-by-step explanation:

the two angles add to a total of 360 °

5x - 40    + `150 = 360

x = 50°

[H+] = -1.7243

Explanation:

Since [H+] = 5.7 * 10 - 4, in the function -log[H+] representing pH, replace H+

pH = -log [5.7 *10 - 4]

pH = -log[53]

pH = -1.7243

NB:

This number is rounded up from -1.72427.....

Answer:

Least to greatest: 1. International finance center

2. Petronas towers

3. Zifeng towers

4. Burj Khalifa

The break-even points for her graph are given approximately as follows:

C. 15 and 47.

The expenses and the revenue are defined as follows:

The break-even points are the points in which the expenses and the revenue are equal.

In the context of this problem, the functions are given as follows:

The break-even point is given by the intersection of the two curves, which happen around x = 15 and x = 47, hence option C is the correct option.

The problem is given by the image at the end of the answer.

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The most appropriate choice for speed will be given by-

Average speed of Trevon is 56 mph

What is speed?

The distance travelled by the body per unit time is called speed of the body.

If d is the distance travelled by the body and t is the time taken, then

speed = [tex]\frac{d}{t}[/tex]

Speed is a scalar quantity as the direction is not taken into account.

Here,

Let the average speed of Trevon be [tex]x[/tex] mph

Average speed of Mike = [tex](x + 14)[/tex] mph

Time for which Trevon driven = [tex](4 + 1)[/tex] h

                                                  = [tex]5[/tex] h

Time for which Mike driven = [tex]4[/tex] h

By the problem,

[tex]5 \times x = 4 \times (x+14)[/tex]

[tex]5x = 4x+56[/tex]

[tex]5x-4x=56[/tex]

[tex]x =56[/tex] mph

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Answer:

Step-by-step explanation:

A, B:  Define the Variables and Write Equations

Let T be the number of toppings.

Option 1:  $3 + $0.75*T

Option 2:  $4 + $0.50*T

C.  Graph the System

See the attached graph.  The intersection point is (4,6).  This means that 4 toppings will result in a cost of $6 for both yogurt options.

D.  Solution to the Problem

The solution is given above, but we can also solve using equations, instead of graphing.  We want the value of T that will make these expressions equal:

$3 + $0.75*T = $4 + $0.50*T

$0.25*T = $1

T = 4 toppings

=============

CHECK:

For 4 toppings:

Option 1:  $3 + $0.75*T

                  $3 + $0.75*(4)

                  $3 + $3 = $6

Option 2:  $4 + $0.50*T

                  $4 + $0.50*(4)

                  $4 + $2 = $6

Four toppings will make both options equal in cost.

E:  Is the solution reasonable?

Yes.  The cheaper option ($3) has a more expensive topping, so at some point (at 4 toppings) it will be the same price as the second option, with a higher initial price, but with cheaper toppings.

The side MD measures 10 cm and ∠D=72° for the given triangle.

What is triangle?

The perimeter of ΔMUD= 38cm

MU=DU=14cm

∠U=36°

⇒∠M=∠D=x

Applying Angle sum property,

36°+x+x=180°

2x=180°-36°

x=72°

∴∠D=72°

Perimeter of triangle=14+14+MD

38=28+MD

⇒MD=10cm.

The side MD measures 10 cm and ∠D=72° for the given triangle.

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If we call the middle number in the sequence [tex]x[/tex], the numerical values of the other terms will be [tex]x-1[/tex] and [tex]x+1[/tex], respectively, since they are consecutive.

We are told that [tex]4[/tex] times the smallest number is equal to [tex]3[/tex] times the largest number. Let us write our equality.

We found our number in the middle. Since it wants the value of our largest number, let's add 1 to the middle number.

The answer is B.

Answer:

I couldn't do the second question but I did the first and third

1. x=125

3. 11.84

Step-by-step explanation:

2x+6x= 1,000    Set up equation

8x=1,000          Add the like terms-so, 2x and 6x

x=1,000/8         Isolate the x by taking the 8 to the other side to divide

x=125

-2.3x-4.2x=-66.3       Equation

-5.6x= -66.3              Add -2.3 and -4.2 because both r negative

x=-66.3/-5.6              isolate x bu dividing

x= 11.84                        Rounded answer

Answer:

Question 3.

[tex]y = \frac{2}{7} x - 3[/tex]

question 4

[tex]y = - 4x - 1[/tex]

question 5

[tex]y = 5x + 3[/tex]

Step-by-step explanation:

Question 3

1.Write down what is given in equation form

[tex]y = \frac{2}{7} x + c[/tex]

2. Insert the given point to work out c

[tex] - 5 = \frac{2}{7} ( - 7) + c[/tex]

[tex]c = - 3[/tex]

3. answer

[tex]y = \frac{2}{7} x - 3[/tex]

Question 4

1 write what was given in an equation

[tex]y = - 4x + c[/tex]

2. insert given point (-1;3) to work out c

[tex]3 = - 4( - 1) + c[/tex]

[tex]c = - 1[/tex]

3. final answer

[tex]y = - 4x - 1[/tex]

question 5

1.with what was given write it in equation form

[tex]y = 5x + c[/tex]

2. substitute the given point (-2;-7) to work out c

[tex] - 7 = 5( - 2) + c[/tex]

[tex]c = 3[/tex]

3.final answer

[tex]y = 5x + 3[/tex]

Answer:

-12

Step-by-step explanation:

hope it helps

have a nice evening

The number of members that the club had last year was 85

The number of members that the club has this year is 120.

The number by which it increased is

120 - 85 = 35

Percentage is expressed in terms of 100. Thus, the percentage increase is

35/85 * 100

= 41.2%

The percentage isncrease is 41.2%

Answer:

-18/35

Step-by-step explanation:

Answer: 45

41.4 is 45 percent of 92

Answer: 45%

Step-by-step explanation:

Solution for 41.4 is what percent of 92:

41.4:92*100 =

(41.4*100):92 =

4140:92 = 45

Now we have: 41.4 is what percent of 92 = 45

Question: 41.4 is what percent of 92?

Percentage solution with steps:

Step 1: We make the assumption that 92 is 100% since it is our output value.

Step 2: We next represent the value we seek with x.

Step 3:  100%=92.

Step 4: In the same vein, x%=41.4.

Step 5: This gives us a pair of simple equations:

$100%=92(1).

$x%=41.4(2).

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

100%/x%= 92/41.4

Step 7: Taking the inverse (or reciprocal) of both sides yields

x%/100% = 41.4/92

-> x=45%

Therefore, 41.4 is 45% of 92.

Answer:

237

Step-by-step explanation:

3×(9-4)³ - 46×3
subtract 4 from 9 to get 5
3x5³-46x3
calculate 5 to the power of 3 and get 125
3x125-46x3

multiply 3 and 125 to get 375.

375-46x3
Multiply 46 and 3 to get 138
375-138

subtract 138 from 375 to get 237.
And there's your answer

You can follow the rule of BODMAS.

BODMAS stands for Bracket, Of, Division, Multiplication, Addition, Subtraction

By following the rule of BODMAS, the solution will be like this:

3×(5)³ - 46×3

= 3×125 - 46×3

= 375 - 138

= 237

I hope my explanation has helped you.

You can do well to declare this answer as the Brainiest Answer.

Thanks so much

Answer:

Your answer would be 4 over 1

The expression is equivalent to the given expression  by combining like terms is  -2.2[tex]y[/tex]-1.8 .

An expression is a set of terms combined using the operations +, -, x or ÷

and the variables. Number, symbols and operators are grouped to form an expression . An expression can be simplified by combining like terms.  

Given that,

  1.2y + 4.5 - 3.4y - 6.3

The terms that has same variables are like terms Combine like terms by adding or subtracting the terms.

-1.2[tex]y[/tex]-3.4[tex]y[/tex]+4.5-6.3

-2.2[tex]y[/tex]-1.8

Hence, The expression is equivalent to the given expression  by combining like terms is  -2.2[tex]y[/tex]-1.8 .  

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Answer:

0.4

Step-by-step explanation:

The absolute value is just the number in the line things but positive.

The absolute value is the distance between a number and zero. The distance between − 0.4 and 0 is 0.4

if |-0.4| is all that is in the question it is 0.4

The bacteria present at t=37 minutes is found to be 8.40, with no change in growth rate.

When a population's per capita growth rate remains constant, regardless of population size, exponential growth occurs, causing the population to grow exponentially as the population increases.

Given:

P = 340

It has been discovered that a specific bacterial population doubles in 20 minutes.

k = 2/20 = 0.1

t = 37 minutes

We know that,

P = P₀[tex]e^{kt}[/tex]

340   = P₀([tex]e^{0.1*37}[/tex])

340 =P₀(40.44)

P₀ = 8.40

As a result, the bacteria that will be present in t=37 minutes is found to be 8.40 with no change in growth rate.

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Answer: 0.8 m

Step-by-step explanation:

1.  The perimeter P of the wooden frame is equal to:

P=2(0.8+0.5)

P=2(1.3)

P=2.6 m

2. The remaining length of wood is equal to:

3.4-2.6=

0.8 m

Answer:

How is this math?

Step-by-step explanation:

Answer:

Visiting the zoo on cold days limits the number of people there and it isn't too hot so you don't stand in the sweltering heat. Besides, on cold days, the animals may be in a better mood, but be cautioned, remember to bring a jacket just in case.

Step-by-step explanation:

Answer:

-8 + (-10)

Hope this help!