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Natalija [7]
3 years ago
13

Elizabeth mowed 6 lawns in 9 hours. What was her rate of mowing in hours per lawn? Express your answer in simplest form.​

Mathematics
2 answers:
kumpel [21]3 years ago
4 0

Answer: 1.5 lawns per hour

Step-by-step explanation: Six lawns in nine hours would be 9/6.

Elizabeth mowed 1 lawn ever hour and a half.

ycow [4]3 years ago
4 0
1.5 because 6 / 9 would be 1.5, meaning it takes 1 hour and 30 minutes to mow 1 lawn.
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X+y+z=1
andrezito [222]

Answer: x = 0

y = 2

z = -1

Step-by-step explanation:

The system of equations are

x+y+z=1 - - - - - - - - - - 1

-2x+4y+6z=2 - - - - - - - - - 2

-x+3y-5z=11 - - - - - - - - - 3

Step 1

We would eliminate x by adding equation 1 to equation 3. It becomes

4y -4z = 12 - - - - - - - - - 4

Step 2

We would multiply equation 1 by 2. It becomes

2x + 2y + 2z = 2 - - - - - - - - - 5

We would add equation 2 and equation 5. It becomes

6y + 8z = 4 - - - - - - - - - 6

Step 3

We would multiply equation 4 by 6 and equation 6 by 4. It becomes

24y - 24z = 72 - - - - - - - - 7

24y + 32z = 16 - - - - - - - - 8

We would subtract equation 8 from equation 7. It becomes

-56z = 56

z = -56/56 = -1

Substituting z = -1 into 7, it becomes

24y - 24×-1 = 72

24y + 24 = 72

24y = 72 - 24 = 48

y = 48/24 = 2

Substituting y = 2 and z = -1 into equation 1, it becomes

x + 2 - 1 = 1

x = 1 - 1 = 0

4 0
3 years ago
The Brown family bought 9 bags of cookies. Each bag had 16 cookies. They have since eaten 26 of the cookies. How many cookies do
grigory [225]

Answer:

118 cookies

Step-by-step explanation:

1. 9x 16  

2.144-26

And then get 118! Have a nice day YW!!!!!???

3 0
2 years ago
Prove: △VWZ ≅ △YWZ
chubhunter [2.5K]

Answer:


Step-by-step explanation:

Statements                          Reasons

----------------------------------------------------------------

1. ∠V ≅ ∠Y                        Given

2. WZ bisects ∠VWY          Given

3. ∠VWZ ≅ ∠YWZ            Definition of Angle Bisector (2)

4. WZ ≅ WZ                         Reflexive Property

5. ΔVWZ ≅ ΔYWZ               AAS Theorem (1,3,4)

**In case you didn't know the definitions**

Angle Bisector - A line, segment or ray that divides an angle into two congruent angles

Reflexive Property - X = X

AAS Postulate -  If two angles and a non-included side of one triangle are congruent to the corresponding parts of another triangle, then the triangle's are congruent

6 0
3 years ago
12x power of 22 -24 power of 5 +16 is divided by x-1
koban [17]

Answer:

the answer is 16

Step-by-step explanation:

I had type into a calculator

4 0
3 years ago
What are the square roots of 36100?
sleet_krkn [62]

\huge\text{Hey there!}

\large\textsf{What are \bf the square roots of 36,100?}

\mathsf{\sqrt{36,100}=190\times190 = \bold{190}^2}

\mathsf{190^2=36,100}

\mathsf{(- 190)^2=36,100}

\mathsf{190\times190=36,100}

\mathsf{\sqrt{36,100}=\bf 190}

\mathsf{-\sqrt{36,100}=\bf -190}

\boxed{\boxed{\large\text{Answer: \huge \bf -190 and 190}}}\huge\checkmark

\text{Good luck on your assignment and enjoy your day!}

~\frak{Amphitrite1040:)}

8 0
3 years ago
Read 2 more answers
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