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Mice21 [21]
3 years ago
9

65% of 40 is what number?ahh this was supposed to be done yesterdayyy..​

Mathematics
2 answers:
Tasya [4]3 years ago
6 0

Answer:

65% of 40 is 26

Arlecino [84]3 years ago
3 0

26 is answer

Step-by-step explanation:

Percentage solution with steps:

Step 1: Our output value is 40.

Step 2: We represent the unknown value with $x$.

Step 3: From step 1 above,$40=100\%$.

Step 4: Similarly, $x=65\%$.

Step 5: This results in a pair of simple equations:

$40=100\%(1)$.

$x=65\%(2)$.

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

$\frac{40}{x}=\frac{100\%}{65\%}$

Step 7: Again, the reciprocal of both sides gives

$\frac{x}{40}=\frac{65}{100}$

$\Rightarrow x=26$

Therefore, $65\%$ of $40$ is $26$

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Find the indicated sum. Select your choice and click Submit to check your answer.
Ivahew [28]

Answer:

S_4=50

Step-by-step explanation:

Sum Of Arithmetic Sequence

Given an arithmetic sequence

a_1,\ a_1+r,\ a_1+2r,....,\ a_1+(n-1)r

The sum of the n first terms is

\displaystyle S_n=\frac{(a_1+a_n)n}{2}

Or equivalently

\displaystyle S_n=\frac{[2a_1+(n-1)r]n}{2}

The given sequence is

5, 8, 11 ...

We can see the common difference between terms is r=3

We are asked to find the sum of the terms 2 to 5, it means that

a_1=8, n=4, r=3

\displaystyle S_4=\frac{[2(8)+(4-1)3]4}{2}

\displaystyle S_4=\frac{100}{2}

\boxed{S_4=50}

3 0
3 years ago
The midpoint M of CD has coordinates (6, 6). Point D has coordinates (10, 4). Find the coordinates of point C.
Firdavs [7]

Answer:

(2,8)

Step-by-step explanation:

The midpoint of a line segment with endpoints (a,b) and (c,d) is

((a+c)/2   ,  (b+d)/2) .

So one endpoint is given and the midpoint is given, we are asked to find the other midpoint.

(10+c)/2=6                      (4+d)/2=6

10+c=12                           4+d=12

c=2                                      d=8

(2,8) is the other endpoint

5 0
3 years ago
AB = 6x DC = x + 15 AD = 9 BC = 3y Quadrilateral ABCD is a parallelogram if both pairs of opposite sides are congruent. Show tha
Kruka [31]

Answer:

The given quadrilateral is a parallelogram.

Step-by-step explanation:

If a quadrilateral is a parallelogram , then the opposite sides would be equal.

Here we are going to equate the length of  1 pair of opposite sides to find the value of x and use this value of x to verify whether the other pair of opposite sides are equal.

AB = 6x

BC = 3x

DC = x + 15

AD = 9  

Equate AB and CD,

6x = x + 15

5x = 15

x = 3

Now BC and DA should be equal.

BC = 3x = 9

Also DA = 9

As we can see, the other pair of opposite sides are also equal.

Quadrilateral ABCD is a parallelogram if both pairs of opposite sides are congruent.

Hence , the given quadrilateral is a parallelogram.

5 0
3 years ago
Solve for x. 45(15x+20)−7x=56(12x−24)+6
Nady [450]

Answer:

The value of the equation for x is x=\frac{1119}{2} or 559.5.

Step-by-step explanation:

Consider the provided equation.

45(15x+20)-7x=56(12x-24)+6

We need to solve the equation for x.

Use the distributive property: a(b+c)=ab+ac

45(15x+20)-7x=56(12x-24)+6

675x+900-7x=672x-1344+6

Add the like terms.

668x+900=672x-1338

Isolate the variable as shown:

672x-668x=900+1338

4x=2238

x=\frac{2238}{4}

x=\frac{1119}{2}

Hence, the value of the equation for x is x=\frac{1119}{2} or 559.5.

4 0
3 years ago
Read 2 more answers
3x - 4y - 1=0
olchik [2.2K]

Answer:

  solvable

Step-by-step explanation:

The coefficients of x and y have different ratios, so the equations are solvable.

__

The solution is (x, y) = (7/15, 1/10).

3 0
2 years ago
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