9/5 , - 2.5 , - 1.1 , - 4/5 , 0.8 from least to greatest

I NEED THIS DONE, PLEASE SHOW ALL WORK!! PICTURE 1 IS FOR QUESTION 3 AND PICTURE 2 IS FOR QUESTION 2. THANK YOU

Artemon [7]

Answer:

See explanation

Step-by-step explanation:

Question 1. Write two-column proof.

Statement Reason

1. $4x=8(x-2)$ Given

2. $4x=8x-16$ Distributive Property of Equality

3. $4x-8x=8x-8x-16\\ \\-4x=-16$ Subtraction Property of Equality

4. $x=4$ Division Property of Equality

Question 2.

Statement Reason

1. $m\angle SQR = 55^{\circ}$ Given

2. $m\angle PQS = 35^{\circ}$ Given

3. $m\angle SQR+m\angle PQS=m\angle PQR$ Angle Addition Postulate

4. $m\angle PQR=55^{\circ}+35^{\circ}\\ \\m\angle PQR=90^{\circ}$ Substitution Property of Equality

5. $\angle PQR$ is a right angle Definition of a right angle

6. $\triangle PQR$ is a right triangle Definition of a right triangle

Question 3:

Statement Reason

1. $\angle 1$ and $\angle 2$ are supplementary Given

2. $m\angle 1+m\angle 2=180^{\circ}$ Definition of supplementary angles

3. $m\angle 1=27^{\circ}$ Given

4. $27^{\circ}+m\angle 2=180^{\circ}$ Substitution Property of Equality

5. $27^{\circ}-27^{\circ}+m\angle 2=180^{\circ}-27^{\circ}\\ \\m\angle 2=153^{\circ}$ Subtraction Property of Equality

3 0

3 years ago

A test takes less than 50 minutes to complete. Thirty-eight minutes have passed. Which inequality represents m, the possible num

hoa [83]

Answer:

m + 38 less-than 50

Step-by-step explanation:

this what you looking for?

7 0

4 years ago

The sum of two numbers is 90. The larger number is 14 more than 3 times the smaller number. Find the numbers. First complete the

patriot [66]

Just use photo math it will work

4 0

3 years ago

Help!! i need help asap! help is very much appreciated

Molodets [167]

Answer:

Step-by-step explanation:

A and B are the side lengths. C is the hypotenuse (the longest side).

For triangle A)

a^2+b^2=c^2

(it won't let me add exponents but you get the point)

4^2+2^2=c^2

8+4=c^2

12=c^2

c=square root of 12

For B)

a^2+b^2=c^2

2^2+5^2=c^2

4+10=c^2

After solving, it doesnt

add up to 45

7 0

3 years ago

You need 550 mL of a 50% alcohol solution. On hand, you have a 55% alcohol mixture. How much of the 55% alcohol mixture and pure

vitfil [10]

We need 500 ml of alcohol mixture and 50 ml of water.

Step-by-step explanation:

The 50% concentration of the final solution is a result of mixing the 55% concentration with water, which is 0% concentration. Multiply the concentration of each liquid times the # of ml you will use, add these and divide by the total ml to get 50%

x = the number of ml of the 55% alcohol mixture

y = the number of ml of water

x + y = 550

$\frac{{0.55 x + (0) y }}{550} =0.50$

Again, the 0 above represents the water which is 0% concentration

$\frac{0.55 x}{550}$ = 0.50

0.55 x = 275

x = $\frac{275}{0.55}$ = 500

plug 500 into the equation x + y = 550

500 + y = 550

y = 50

Use 500 ml of the 55% solution and 50 ml of water.

5 0

3 years ago