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3 years ago

19(2m−16)=13(2m+4) (pls helppp)

Mathematics

1 answer:

Morgarella [4.7K]3 years ago

4 0

Answer:

Simplified this is -304 + 38m = 52 + 26m

m in the equation is 29 2/3

Step-by-step explanation:

Reorder the terms:

19(-16 + 2m) = 13(2m + 4)

(-16 * 19 + 2m * 19) = 13(2m + 4)

(-304 + 38m) = 13(2m + 4)

Reorder the terms:

-304 + 38m = 13(4 + 2m)

-304 + 38m = (4 * 13 + 2m * 13)

-304 + 38m = (52 + 26m)

Simplfied answer:

-304 + 38m = 52 + 26m

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '-26m' to each side of the equation.

-304 + 38m + -26m = 52 + 26m + -26m

Combine like terms: 38m + -26m = 12m

-304 + 12m = 52 + 26m + -26m

Combine like terms: 26m + -26m = 0

-304 + 12m = 52 + 0

-304 + 12m = 52

Add '304' to each side of the equation.

-304 + 304 + 12m = 52 + 304

Combine like terms: -304 + 304 = 0

0 + 12m = 52 + 304

12m = 52 + 304

Combine like terms: 52 + 304 = 356

12m = 356

Divide each side by '12'.

m = 29.66666667

Simplifying

m = 29.66666667 = 29 2/3

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MARKING BRAINLIEST FOR CORRECT ANSWER<br><br> -13 5/7 ÷ -56/91 = ?

BlackZzzverrR [31]

Answer:

-13 5/7 divided by -56/91 is 22 2/7

Step-by-step explanation:

By checking, (don't do it my way)

#1. 13 5/7 is 96/7 as an improper fraction.

#2 Then, make it negative.

#3 -56/91 is simplified as -8/13

#4 Divide. --> -96/7 :(-8/13)=-96/7*-13/8= -96/*(-13)/7*8=1248/56=156/7

=22 2/7

3 0

3 years ago

How many pairs of whole numbers have a sum of 99

alexandr402 [8]

With the sum of 99, we will get 50 pairs whole numbers. Why?

Let’s start with

0+ 99

1 + 98

2 + 97

3 + 96

4 + 95

5 + 94

6 + 93

7 + 92

8 + 91

9 + 90

10 + 89

………

……..

43 + 49

44 + 50

Therefore, if you’re going to count all pairs of whole number, you will get 50 pairs of whole number with the sum of 99.

Hope this helps!

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3 years ago

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A grocery store buys items and then applies a markup of 70%. What is the retail price of item that originally costs $10?

S_A_V [24]

Answer:

$17.00

Step-by-step explanation:

10 x 1.70 = $17.00

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Quadrilateral ABCD is inscribed in a circle. Find the measure of each of the angles of the Quadrilateral. Show your work. ( Plea

oksano4ka [1.4K]

Answer:

Shown Below.

Explanation:

opposite angles in a quadrilateral sum up to 180°

total interior angles in a quadrilateral is 360°

solve for x:

x - 2 + x + 2 = 180°

2x = 180°

x = 90°

solve for each angle:

1st

x + 2

90° + 2 = 92°

2nd

x - 2

90° - 2 = 88°

3rd

x - 10

90° - 10° = 80°

4th

360° - 80° - 88° - 92° = 100°

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3 years ago

Can you anser the question number 7

goldfiish [28.3K]

Answer:

Length of rectangle = 64 inches

Width of rectangle = 32 inches

Step-by-step explanation:

Perimeter of rectangle = 192 in

Length = x

Width = $\frac{1}{2}x$

We need to find the length and width.

The formula used is: $Perimeter\:of\:rectangle=2(Length+Width)$

Putting values and finding value of x

$Perimeter\:of\:rectangle=2(Length+Width)\\192=2(x+\frac{x}{2} )\\192=2(\frac{2x+x}{2} )\\192=2(\frac{3x}{2} )\\192=3x\\x=\frac{192}{3}\\x=64$

So, we get x = 64

The length of rectangle x = 64

The width of rectangle = $\frac{1}{2}x$ = $\frac{64}{2} = 32$

So, Length of rectangle = 64 inches

Width of rectangle = 32 inches

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3 years ago

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