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sp2606 [1]
3 years ago
8

What are the properties of addition?

Mathematics
1 answer:
stira [4]3 years ago
7 0
The properties are the commutative, associative, additive identity and distributive properties
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Jared has a wooden board that is 11 ft long. He wants to cut it into 2 pieces so that the longer piece is 4 ft less than 4 times
Kaylis [27]
X+y=11

x is longer than y
x>y
x is 4 less than 4 times y
x=-4+4y

sub back
x+y=11
-4+4y+y=11
-4+5y=11
add 4 to both sides
5y=15
divide both sides by 5
y=3

sub back
x=-4+4y
x=-4+4(3)
x=-4+12
x=8

the pieces are 8ft and 3ft
4 0
4 years ago
To solve the equation 7 = 3x-2 for x, what operations
Aleks [24]

X=3

Algebra is not one of my fav subjects in math but I do know this!

when solving what you do to one side you do to the other so

if 3x-2=7

the 2 is negative so you change that -2 into a positive

so add 2 to both sides

7+2=9

3x=9

now divide both sides by 3

X= 9/3 (nine over three)

now divide 9 by 3

9÷3=3

x=3

(Hope this helps!)

6 0
3 years ago
1. Name two angles that are supplementary to ∠DOE.
lions [1.4K]

Answer:

explain please and thank you

8 0
3 years ago
The sum of two numbers is 52. One number is 3 times as large as the other. What are the numbers?
Gwar [14]

Answer:

13 and 39

Step-by-step explanation:

The sum of two numbers = 52

One number is 3 times as large as the other

Equation:

x + 3x = 52

4x = 52

52 / 4 = x

x = 13

13 * 3 = 39

The numbers are 13 and 39

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

5 0
3 years ago
What is the y-intercept of the line?
cestrela7 [59]

Answer

-41

Step-by-step explanation:

When X =0 Y=-41

First column you are adding 9

-27+9=-18

-18+9=-9

-9+9=0

Second column you are adding 19

-98+19=-79.

-79+19=-60

-60+19/-41

So when X=0 Y=-41

7 0
3 years ago
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