Mathematics High School

100 points / please help, im lost

Answers

Answer 1

Answer:

12:15 is NOT proportional to 3:4

Step-by-step explanation:

7.5:10 is proportional to 3:4 because 3×2.5=7.5, and 4×2.5=10.

39:52 is proportional to 3:4 because 3×13=39, and 4×13=52

45:60 is proportional to 3:4 because 3x15=45, and 4×15=60

12:15 is not proportional to 3:4 because while you can multiply 3x4=12, you can not multiply 4×4 to get 15, you get 16 instead.

Answer 2

the answer to your question is D.12:15

Related Questions

Someone help plz make sure it’s right will mark brainiest if it is

Answers

Answer:

B 33°

Step-by-step explanation:

sin x = 29/53

= 33.17

Two sides of a triangle have lengths of 9
and 18. Which inequality represents the
possible length for the third side, x?

A. 9 < x < 18

B. 18 < X < 9

C. 9
D. 18 < X < 27

Answers

D) 18 < X < 27

Because the length of the third side has to lesser that the sum of the other two sides

Answer:

I think that a option is correct

"A.9 <x<18"

Step-by-step explanation:

HOPE IT HELPS YOU:)

Mr. Jackson paid for his purchase of fishing equipment with $75. He bought 16 weights and 24 packages of worms. The cost of each weight was $1.16, and the cost of each package of worms was $2.25. How much change should Mr. Jackson receive?

Answers

Answer:

2.44$

Step-by-step explanation:

75$ - 18.56 (weights) = 56.44

56.44$ - 54 (worms) = 2.44$ extra

What is the minimum?

Awnsers:
48
50
45
49
34

Answers

Answer:

Step-by-step explanation:

Two divers are underwater. Nick is 33 feet below the surface. Tristan is 15 feet above him. What is Tristan's depth?

Answers

Tristan’s depth is 18 feet

Answer:

Tristan is 18 feet below the surface. or Tristans depth is -18ft

Step-by-step explanation:

if Nick is -33 depth and Tristan is 15 feet above him, then you d

-33+15 = -18

so Tristan must be at -18 depth

Hiiiooo! Can someone please help me out with this!❤️

Answers

Answer:

Step-by-step explanation:

6² + b² = 10²

36 + b² = 100

-36 -36

b² = 64

[tex]\sqrt{64}[/tex] = 8

b² = 8

hope this helps

Susanna baked a cake she and her family ate ⅜ of the cake and gave ⅛ of the cake to her neighbor to eat how much cake does susanna have left

Answers

1/2 of the cake is left

Answer:

They would have 4/8 left or 1/2 reduced

Step-by-step explanation:

Because they ate almost half then gave the last bit to the neighbor so they have 4/8 of there cake left or reduced 1/2 of their cake left

Points (-3, 3) and (2, -9) are located on the coordinate plane. What is the distance between these two points?

Answers

Answer:

Step-by-step explanation:

pythagorean theorem, draw a vertical and horizontal line 5^2+12^2= 13^3

2 CDs and 9 DVDs cost £69. 2 CDs and 6 DVDs cost £48. i. Form a pair of simultaneous equations to represent these two sentences ii. Solve the simultaneous equations to find the cost of 1 CD and 1 DVD.

Answers

Answer:

Cost of 1 CD = x = £3

Cost of 1 DVD = y = £7

Step-by-step explanation:

Let us represent:

Cost of 1 CD = x

Cost of 1 DVD = y

i. Form a pair of simultaneous equations to represent these two sentences

2 CDs and 9 DVDs cost £69.

2x + 9y = 69.... Equation 1

2 CDs and 6 DVDs cost £48.

2x + 6y = 48..... Equation 2

ii. Solve the simultaneous equations to find the cost of 1 CD and 1 DVD.

Combining both equations together:

2x + 9y = 69.... Equation 1

2x + 6y = 48..... Equation 2

We substract Equation 2 from Equation 1

3y = 21

y = £7

Solving for x using Equation 1

2x + 9y = 69.... Equation 1

2x + 9 × 7 = 69

2x + 63 = 69

Collect like terms

2x = 69 - 63

2x = 6

x = 6/2

x = £3

Therefore,

Cost of 1 CD = x = £3

Cost of 1 DVD = y = £7

In the diagram below, BC = QR = x, AC = PR = y, and triangle PQR is a right
triangle. Use the drop-down menus to complete the proof that if the equation
22 + y2 = z2 is true of the side lengths in triangle ABC, then triangle ABC must be a right
triangle.
P
y у
y
B
R
х
Q
x2 + y2 = 22
Triangle PQR is a right triangle
Click the arrows to cho
from each menu.
Triangle PQR is given to be a right triangle, so the Pythagorean theorem can be used to

Answers

Applying the Pythagorean theorem, we have ΔPQR ≅ ΔABC. then we would have: ∠ACB = ∠PRQ = 90°

What is the Pythagroean Theorem?

The pythagorean theorem states that the square of the longest side (hypotenuse) of a right triangle is always equal to the sum of the squares of the other two sides (legs) of the right triangle.

Since we know that ΔPQR is a right triangle, then:

x² + y² = PQ²

We are also given that x² + y² = z², so by substitution, we have:

z² = PQ², which makes both triangles have corresponding congruent sides. Therefore, ΔPQR ≅ ΔABC.

Using the corresponding parts of the congruent triangles, we can conclude that: ∠ACB = ∠PRQ = 90°.

Learn more about the Pythagorean theorem on:

https://brainly.com/question/343682

#SPJ2

please help me out thank you so much whoever does !!

Answers

Answer:

62°

Step-by-step explanation:

A right angle is 90 degrees, so we'd do 90 - 28 = 62

hope this helps!

At a competition with 8 runners, 2 medals are awarded for first and second place. Each medal is different. How many ways are there to award the medals?

Answers

Answer:

Step-by-step explanation:

At a competition, there are 8 runners

2 medals are awared for first and second place

Therefore the eat to award the medal van be calculated as follows

8×7

= 56

Wendy randomly chooses a positive integer less than or equal to 2020. The probability that the digits in Wendy's number add up to 10 is m/n, where m and n are relatively prime positive integers. Find m+n.

Answers

Answer:

107

Step-by-step explanation:

Probability = numbers that add up to 10 / total of numbers

There are 120 positive integers between 1 - 2020 that add up to 10.

120 / 2020

convert to its simplest form by dividing by 20

6 / 101

m + N = 101 + 6 = 107

Johnny bought 10 cupcakes for 12 dollars, how much would 15 cost?

Answers

Answer:

Step-by-step explanation

10=12

must mean 5=6

12+6=18

15=18

18 dollars

he also has diabetes and drinks diet coke

PLZ HELP!!! I’ve retaken this like 4 times and I just don’t get it I need the answer plz

Answers

Answer:

a) 65 degrees

b) 60 degrees

Hope that helps! Good luck! :)

-Aphrodite

Step-by-step explanation:

help and pls get it right

Answers

Answer:

V= 32

Step-by-step explanation:

Multiply all lengths and the answer will be your volume.

2 x 2 x 8 = 32

Answer:

32 in ^3

Step-by-step explanation:

Harry is reading a book that is 597 pages long. He tells a friend that he is about 2/3 of the way done. About how many more pages must Harry read before he finishes the book? PLEASE HELP MEEEEE!!

Answers

Answer:

Harry needs to read 199 more pages

Step-by-step explanation:

2/3 x 597 = 398

597 - 398 = 199

whst number represents 3.5 x 10^9

Answers

Answer:

B - 3,500,000,000

Step-by-step explanation:

no explanation provided

Pslss helpppp (any diffrent answer will be reported)

Answers

530.93 because of the formula

The answer is 132.73 as
Pie multiply 6.5^2=132.7322896

Pricilla is driving home from work after dark and the outside temperature is 35°F. Determine which event is unlikely.
A. Priscilla will turn on the radio.
B. Priscilla will turn on the heater.
C. Priscilla will turn on the headlights.

ONLY ANSWER IF YOU KNOW PLZ HELPP
OD. Priscilla will turn on the air conditioner.

Answers

Your answer would be C trust me!!

Which is a reasonable estimate for 7473 - 2875

Answers

Answer: the answer is 4,598.

fill in the table using this function rule.
y=5x-3

Answers

Answers in order:
2
27
32
37

The answers are: 2, 27, 32, 37

5 1/2in
10in
6 1/4in

Answers

Answer:

5 1/2in

10in

6 1/4inhhjghtdddyggkkjh

help me please ill choose brainliest if bestt

Answers

Diana’s Dog Walking (the bottom right graph)

That is the only graph that has a data point significantly far away from the rest of the data, so that point is an outlier.

[tex]10 \times 10 + 8 - 6 + 5 = [/tex]
[tex]6 - 5 \div 6 + 9 = [/tex]
[tex]4 + 4 - 4 + 4 + 5 = [/tex]

Answers

Answers:
1. 107
2. 85/6 or 14 1/6
3. 13

Use order of operation to solve!

1. Is 107
2. Is 14.16
3. Is 13
If this helps mark as brainliest

The cost of a new television is $948. If the value of the television decreases by 4.5 every year, which function models the value of this television x years after it was purchased?

Answers

Answer:
t(x) = 948(0.955)

If x = 5 and y = 0, which is the value of 62x3y8?
A. 7750
B. 1000
C. 930
D. 80
E: 0

Answers

Answer would be E

The reason being anytime you multiply by a zero then then answer will always be zero

solve for x
10/3=x/(-5/2)

Answers

Answer:

X=(10/3)*(-5/2)

X=-8.33

Answer:

-25/3

Step-by-step explanation:

khan said so

Factor the following: 25x^2 + 30x = 0

Answers

Answer:

= 0

= − 6 /5

Step-by-step explanation:

You can use the quadratic formula or just factor it.

Find the Common factor

rewrite in factored form

Create separate equations

then solve

Answer

5x(5x+6)=0

Step-by-step explanation:

Factor 5x out of 25x^2+30x

Lots of points and brainliest!!!

A system of inequalities can be used to determine the depth of a toy, in meters, in a pool depending on the time, in seconds, since it was dropped. Which constraint could be part of the scenario?

The pool is 1 meter deep.
The pool is 2 meters deep.
The toy falls at a rate of at least a Negative one-half meter per second.
The toy sinks at a rate of no more than a Negative one-half meter per second.

Answers

Answer:

The toy falls at a rate of at least a Negative one-half meter per second.

Step-by-step explanation:

Answer:

the awnser is a or the pool is 1 meter deep

Step-by-step explanation:

i am smart and i got it right when i did it

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