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3 years ago

Does -7 • [-8] = 7• 8

Mathematics

2 answers:

ANEK [815]3 years ago

5 0

Hey there!

Guide:

• Negative & negative = positive

• Positive & positive = positive

• Negative & positive = negative

• Positive & negative = negative

~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Positives are above 0

• Negatives are below 0

~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Negatives are on the left side of the number line

• Positives are on the right side of the number

~~~~~~~~~~~~~~~~~~~~~~~~~~~

Answering your question

-7 * -8 = 7 * 8

-7 * -8 = 56

7 * 8 = 56

56 = 56

Answer: YES they are equivalent/equal to each other because both of them equal positive 56.

• It wouldn’t be equivalent if one is a negative number and the other one is positive (even when it looks like the same number). If both numbers are positives / negatives with the same number then they’ll most likely be equivalent/equal to each other!

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

kykrilka [37]3 years ago

3 0

Yea, a negative times a negative equals a positive

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Emerson is making a punch that contains 60% grape juice and the rest lemon-lime soda. The punch has 2 liters of lemon-lime soda.

Kisachek [45]

Question

<em>Emerson is making a punch that contains 60% grape juice and the rest lemon-lime soda. The punch has 2 liters of lemon-lime soda. Part A: Write an equation using one variable that can be used to find the total number of liters of grape juice and lemon-lime soda in the punch. Define the variable used in the equation and solve the equation. Hint: 0.6x represents the number of liters of grape juice in the punch. (5 points) Part B: How many liters of grape juice are present in the punch? Show your work. (5 points)</em>

Answer:

<h2>Step-By-Step-Explenation </h2>

5l = Total litres.

0.4l = 0.4 represents % of lemon-lime soda in litres.

0.6l = 0.6 represents % of grape juice in litres.

For grape juice, make L(1) = 0 and find for L(2), you will get 3L

For lemon-lime soda, make L(2) = 0 and find for L(1), you will get 2L

3L + 2L = 5L.

60% + 40% = 100%

I think this is right but i really tried.!

Hope this helps!

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3 years ago

Read 2 more answers

Triangle ABC has the following angle measures:

s2008m [1.1K]

The measure of angle A in the triangle is 18°

<h3>How to determine the measure of angle A?</h3>

The angles in the triangle are given as:

m∠A = (2x − 24)°, m∠B = (x + 8)°, m∠C = (4x + 49)°

The sum of angles in a triangle is 180

So, we have

m∠A + m∠B + m∠C = 180

Substitute the known values in the above equation

So, we have:

2x − 24 + x + 8 + 4x + 49 = 180

Evaluate the like terms

7x = 147

Divide both sides by 7

x = 21

Substitute x = 21 in m∠A = (2x − 24)°

m∠A = (2 * 21 − 24)°

Evaluate

m∠A = 18°

Hence, the measure of angle A in the triangle is 18°

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brainly.com/question/1675117

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Anna007 [38]

$80x^3=10x^2\times8x\\\\30yx^2=10x^2\times3y\\\\GCF(80x^3;\ 30yx^2)=10x^2$

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Answer:

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Step-by-step explanation:

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Find the perimeter and the area of the polygon with the given vertices. W (11,2), X (11,8), Y (14,8), Z (14,2)

liberstina [14]

Answer:

The perimeter of the polygon = 18 units

The area of the polygon will be $A=18$ square units

Step-by-step explanation:

<u><em>Computing the Perimeter of the Polygon: </em></u>

Considering the polygon with vertices

W (11,2)

X (11,8)

Y (14,8)

Z (14,2)

As the polygon is drawn in coordinate plane as shown in figure a.

From the attached figure a, we can observe that

The length of the side $WZ = 3$ units

The length of the side $ZY = 6$ units

The length of the side $WX = 6$ units

The length of the side $XY = 3$ units

So, the perimeter of the polygon can be calculated by taking the sum of the lengths of all sides i.e.

The perimeter of the polygon = $WZ + ZY + WX + XY$

= 3 + 6 + 6 + 3

= 18 units

<u><em>Computing the Area of the Polygon: </em></u>

Area can be calculated by multiplying the length and width of the polygon.

$A=lw$

So, the area will be:

$A=lw$

$A=(3)(6)$

$A=18$

Therefore, the area of the polygon will be $A=18$ square units

Keywords: area, perimeter, polygon

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