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algol [13]
3 years ago
13

Help please please $)

Mathematics
1 answer:
mart [117]3 years ago
6 0
<h3>Look at the picture.</h3>

<em>commutative property</em>  a + b = b + a

... (-5 + 1/2 + 5) = ... (-5 + 5 + 1/2)

<em>inverse property of addition</em> a + (-a) = a - a = 0

... (-5 + 5 + 1/2) = ... (0 + 1/2)

<em>identity property of addition</em> a + 0 = 0 + a = a

... (0 + 1/2) = ... 1/2

<em>inverse property of multiplication</em> a/b · b/a = 1

37 · 2 · 1/2 = 37 · 2/1 · 1/2 = 37 · 1

<em>identity property of multiplication</em> a · 1 = 1 · a = a

37 · 1 = 37

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Please answer this questions
yan [13]

Answer:

4

Step-by-step explanation:

It's going backwards by two

6 0
3 years ago
How do you Order the numbers from least to greatest. -7 , -7.75, 1/2, 75%
Serggg [28]

Answer:

-7.75, -7, 1/2, 75%

Hope this helps ☝️☝☝

6 0
3 years ago
5. Cost to store: $65<br> Markup: ?<br> Selling price: $91
makvit [3.9K]

Answer:

40 %

Step-by-step explanation:

the difference between cost and selling price:

91 - 65 = 26

Find the percentage:

26/65 = 0.4 --> 40%

Markup = 40%

Hope this answer helps you :)

Have a great day

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5 0
3 years ago
Edward solved the equation 4x + 1 = 5x + (−5) using these steps. 1. Add 4 negative x-tiles to both sides. 2. Add 5 negative unit
8_murik_8 [283]

Answer:

The solution for the given expression x ix 6.

Step-by-step explanation:

4x + 1 = 5x + (-5)

Solution:

Step 1: Adding (-4x) on both sides

4x + 1 +(-4)= 5x + (-5)+(-4x)

1=-5+1x

Step 2: Adding (5) on both sides:

1+5=-5+1x+5

6=x

The solution for the given expression x ix 6.

8 0
3 years ago
Read 2 more answers
We are interested in the dimensions of a certain rectangle. this rectangle has length twice the side of the square and width thr
Mila [183]
Area of square = s^2
Area of Rectangle = lw
l = 2s

w+3 = s
solve for w, w=s-3
Now we have l and w.
Plug both into area of rectangle formula so: (2s)(s-3)
Since both areas are equal set both equations equal to each other:
(2s)(s-3)=s^2
Now simplify
2s^2-6s=s^2
s^2-6s=0, Solve for s.
Factor polynomial. s(s-6)=0 , s can be equal to 0 or 6. HOWEVER, you cannot have a side length of 0 therefore the side length has to be 6.
Now plug in s for the length formula for the rectangle:
l = 2s so... l = 2(6) so length of rectangle = 12.
Now plug in s for the width formula for the rectangle:
w+3=s so... w+3=6 so width of rectangle = 3.
Now the dimensions of the rectangle are 12 by 3. 12 being length and 3 width.
To CHECK:
Find area of rectangle:
A=lw so A=3 times 12 so A=36
Find area of square:
We know the side is equal to 6 so
A=s^2 so 6^2 = 36
The areas are equal that verifies the answer of 12 by 3.
8 0
3 years ago
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