Solve the following system of equations by substitution. Which of the following is the solution?

Answer:

36x .9= 32.4

36 is 90% of 40

Answer:

The second one

Step-by-step explanation:

As you can see in the question, it states that 36 is 90% so that means in the model, 36 should be under 90%

Answer:

24.47

Step-by-step explanation:

First, 35.7 - 11.23 = 24.47, which is your answer

Hope this helps!

Answer:

median- 58.5

first quartile- 56

third quartile- 65

interquartile range- 9

Step-by-step explanation:

median is when you put the numbers from least to greated and find the middle number; so, you will put this set in that order= 38, 46, 55,56,58,59,61,65,67,75. now, you get stuck between 58 and 59. so you add them and divide by two to get 58.5. thats the median. The first quartile is any number from the set that is smaller than the median, basically the first half of it. now you will just find the median of that which is 56. that is your first quartile. third quartile is the second half of the set, any number in the set that is greater than the median. you will find the median of that half to get 65. that is your 3rd quartile. interquartile range ius the difference bewteen your first and third quartile. 65-56 is 9. hope this helped marck as brainlyest and help me with my que tooo :)

Answer:

30

Step-by-step explanation:

Right angle = 90 degrees

180-90 = 90, hence the right side of the equation.

x+37+x+67 = 90

2x + 104 = 90

2x = -14

x = -7

Plug in x.

-7+37 = 30 (angle a)

Angle a  = 30

Answer:

angle A = 30 degrees

Step-by-step explanation:

*All triangles have an interior angle that adds up to 180 degrees

The triangle is the picture is a right triangle so one of the angles is 90 degrees.

First, we must figure out what "x" is:

⇒ 180 = 90 + x + 37 + x + 67

Combine like terms:

⇒ 180 = 2x + 194

Subtract 231 from both sides:

⇒ 180 - 194 = 2x + 149- 194

⇒ -14 = 2x

The divide both sides by 2:

⇒ [tex]\frac{-14}{2} + \frac{2x}{2}[/tex]

⇒ -7 = x

Now, we can figure out what angle A is by taking the equation "x + 37" and subtituting x by -7:

⇒ x + 37

⇒ -7 + 37

⇒ 30

To check out answers, take all of the eqautions in the picture and subtitute x by -7, (remember that it must add up to 180):

⇒ 90 + x + 37 + x + 67 = 180

⇒ 90 + (-7) + 37 + (-7) + 67 = 180

⇒ 180 = 180

Answer: I'm pretty sure its the green rectangle

Answer:

40ft

Step-by-step explanation:

Add up all four sides of your rectangle:

15ft + 15ft +5ft + 5ft = 40ft

You can find the other 5ft (the side that is missing) if you notice that the smaller sections are squares.

Answer:

She will have 12 pounds of cheese left

Step-by-step explanation:

Tina starts with 24 pounds , and uses 12 pounds .   24-12=12

Answer: 2.25

Step-by-step explanation: Beause 15x15=225 and then divide 225/100 then you get 2.25 little kid.

Answer: 12

hope this helps :)

Answer:

24/15

Step-by-step explanation:

its the answer buddy

☁️ Answer ☁️

Simplest Form:

8/5

Decimal Form:

1.6

Mixed Number Form:

1 3/5

Hope it helps.

Have a nice day hyung!~ ￣▽￣❤️

Answer:

23.7°

Step-by-step explanation:

To obtain the value of AB ; Use the cosine rule ;

Recall:

c² = a² + b² - 2ab Cos C

c² = 24² + 11² - 2*24*11 Cos75

c² = 576 + 121 - 528 * 0.2588190

c² = 697 - 136.656432

c² = 560.343568

c = sqrt(560.343568)

c = 23.6715

Hence, c = AB = 23.7°

Answer:

4) choice a       30%

5) choice b       62.5%

Step-by-step explanation:

4) 3/10 = 0.30 or 30%

5) 5/8 = 0.625 or 62.5%

Answer:

672 cm³

Step-by-step explanation:

10x7x9=630

2x3x7=42

630+42=672

Answer:

y=2047.05791602

y≈2047

Answer:

$27.2

Step-by-step explanation:

A cake that costs $32 is on sale for 15% off and there are no taxes. Explain why the expression (0.85).32 represents the final price of the cake in dollars.

This is explained in the calculation below

= A cake that costs $32 is on sale for 15% off

The amount off the cake is calculated as

= 15% of $32

= 15/100 × 32

= $4.8

The amount he is paying for the cake =>$32 - $4.8

= $27.2

The above expression is obtained as

(0.85).32

= (100% - 15%) × 32

=( 1 - 0.15) × 32

= 0.85 × 32

= $27.2

The final price of the cake = $27.2

Answer:

250 in.

Step-by-step explanation:

SA= 2(LW+LH+WH)

= 2(10*5+10*5+5*5)

= 2(50+50+25)

= 2(100+25)

= 2(125)

= 250

Answer:

πr2

25π ft²

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

$1,560

Step-by-step explanation:

6% of $750 = $45

$45 times 18 = $810

$810 + $750 = $1,560

Answer:108

Step-by-step explanation:

The period of an function, is how many times it takes to complete one cycle, if the period is 2π then after 2π the function would have been completed one entire cycle, but what I mean by cycle?

It's when the function start again, these functions are called periodic functions for a reason, after between that interval, the function goes up, goes to 0 again, go down and finally goes zero again, it means a cycle! the function goes up, down and then return to the same point.

If you look at the picture, the function took 2π just to go up and zero, it needs more 2π to go down and return to zero, then it's period is 4π.

The bottom function complete its cycle in just π!

I hope you liked it, maybe the draw will help you!

Any doubt? just write in the comment and I'll help you.

Answer:

x = 69

y = 69

Step-by-step explanation:

Since AB is parallel to CD

x = 69 ( They are alternate angles)

and

y = 180 - 111 ( Co - interior angles)

y = 69

Answer:

she walks about 145.7 meters in 5 minutes

Step-by-step explanation:

Hey There!

so first we want to find the meters per second rate

to do this we do

[tex]\frac{12}{24.7} = 0.48582995951[/tex]

so the meters per second is 0.4858299591

Then we want to find how many seconds are in a 5 minutes

to do this we multiply 5 and 60

5x60=300

then we want to multiply that by the meters per second

300x 0.4858299591=145.748987854

so she walks about 145.7 meters in 5 minutes

Answer:

1:2

Step-by-step explanation:1 out of the total 2 objects

Answer:

SCREEEEEEEEeEEEEeeEEeeEEEEEe

Step-by-step explanation:

Answer: 50°

Step-by-step explanation:

Since angle 3 is in a right triangle we can assume one angle is 90° and then the other missing angle will be 40°

Because you take 180°-140°(the angle next to it) which will equal 40°

Now every triangle must add up to 180°

so lets take the angles we have now

90° +40°=130°

now take that 130°

180°-130°=50°

Now check your work

90°+40°+50°=180°

Angle 3 is 50°