Determine whether the ratios 5:7 and 10:21 are equivalent

Answers

Answer 1

Answer:

Step-by-step explanation:

No, thoose two ratios are not equivalent, but I can show you the ones that are  equivalent, {You can write 5/7 or 10/14 or 20/28 or 40/56. There! 3 equivalent ratios.}


Related Questions

Please help me, I will give brainliest, I am struggling badly.

Answers

Answer:

Slope Number 1 is Harry.

Step-by-step explanation:

y = -1/2 + 30

-1 being one less exercise to complete

2 being the 2 minutes spent on each exercise

and 30 being the number of exercises

what is 4 times as much as 20.075? show work

Answers

Answer:

80.3

Step-by-step explanation:

20.075 x 4 = 80.3

Hope that helps!

Determine whether the given value is a solution of the equation. Show your work.

21 = x − 5; x = 16

Answers

Step-by-step explanation:

No Not an answer

21=x-5

x=26

Travelling with a current, a boat covers a distance 1.5times greater than travelling against the current in the same amount of time. What is the speed of the boat in still water if the speed of the current is 1.5 mph

Answers

Let the speed of the current equal c
and the speed of the boat in still water equal b.

b + c = 1.5 (b - c)
b + c = 1.5b - 1.5c
0.5b = 2.5c
b = 5c

The speed of the current is 1.5 mph so
b = 5 * 1.5 = 7.5 mph

In ARST, mZR
mZS.
(x +17), m
mzs
(2x - 2), and mZT
(5x + 5)'. Find

Answers

9514 1404 393

Answer:

  ∠S = 38°

Step-by-step explanation:

The sum of angles in a triangle is 180°, so you have ...

  (x+17)° +(2x-2)° +(5x+5)° = 180°

  8x +20 = 180  . . . . .  divide by °, collect terms

  8x = 160 . . . . subtract 20

  x = 20 . . . . . . divide by 8

∠S = (2x -2)° = (2·20 -2)°

∠S = 38°

Which system has no solution? A b c d

Answers

System B has no solution.

can someone help asap!

Answers

I’m sure I won’t be able to help but try using photo math or GeoGebra it’s like a calculator

ANSWERS:

1) ∛216²=36

2) √81= 9

3) √4∧5=32

4)1.55

5)25

6)X

the question says "Find the value of the triangle shown below"

Answers

Answer:

a

Step-by-step explanation:

Answer:

[tex]\sqrt{32}[/tex]

Step-by-step explanation:

[tex]a^{2} +c^{2}=b^{2}[/tex]

which becomes 81=49+b giving you the number 32 which doesn't have a perfect square meaning the answer would be b=[tex]\sqrt{32}[/tex]

A stereo store is offering a special price on a complete set of components (receiver, compact disc player, speakers, turntable). A purchaser is offered a choice of manufacturer for each component.
Receiver: Kenwood, Sony, Sherwood
Compact disc player: Onkyo, Pioneer, Sony, Technics
Speakers: Boston, Infinity, Polk
Turntable: Onkyo, Sony, Teac, Technics
A switchboard display in the store allows a customer to hook together any selection of components (consisting of one of each type). Use the product rules:
A. In how many ways can one component of each type beselected?
B. In how many ways can components be selected if boththe receiver and the cd player are to be sony?
C. In how many ways can components be selected if noneis to be sony?
D. In how many ways can a selection be made if at leastone sony component is to be included?
E. If someone flips the switches on the selection in acompletely random fashion, what is the probability that the systemselected contains at least one sony component?

Answers

Answer:

Step-by-step explanation:

A stereo store is offering a special price on a complete set of components (receiver, compact disc player, speakers, turntable). A purchaser is offered a choice of manufacturer for each component.

Receiver: Kenwood, Sony, Sherwood

Compact disc player: Onkyo, Pioneer, Sony, Technics

Speakers: Boston, Infinity, Polk

Turntable: Onkyo, Sony, Teac, Technics

A switchboard display in the store allows a customer to hook together any selection of components (consisting of one of each type). Use the product rules:

A. In how many ways can one component of each type beselected?

B. In how many ways can components be selected if boththe receiver and the cd player are to be sony?

C. In how many ways can components be selected if noneis to be sony?

D. In how many ways can a selection be made if at leastone sony component is to be included?

E. If someone flips the switches on the selection in acompletely random fashion, what is the probability that the systemselected contains at least one sony component?

A large piece of iron has a density of 7.87 g/ml what is the density of a piece of iron that is two times heavier

Answers

Answer:

15.74

Step-by-step explanation:

7.87 times 2 = 15.74

the density of the other piece of iron is 15.74 g/ml.

HELP AAAAAAAAAAAAAAAAAAA
Name all the factors of 12.

Answers

I think it’s 1 2 3 4 6
2 4 6 8 1 hope this helps

Ratio table answer If I buy two ice cream’s for six dollars how much would it cost to buy 10 ice cream’s

Answers

Answer:

It would cost $30 to buy 10 ice creams.

Step-by-step explanation:

1 ice cream costs $3

10*3=30

x and y
are supplementary angles. y
measures 142.
What is the measure of x?

Answers

Answer:

38°

Step-by-step explanation:

y = 142°

x + y = 180°{ being supplementary angles }

x + 142° = 180°

x = 180° - 142°

x = 38°

Hope it will help :)

Which symbol completes the inequality represented in the graph z _1.5 needed ASAP plz!!!!

Answers

z is greater than 1.5 so z>1.5

Identify the key features of these functions:

f(x) = 3(x + 5)2 − 10

g(x) = 200(0.95)x

h(x) = -0.25(x + 3)(x − 1)

The vertex of f(x) is at
. The function g(x) is decreasing at a rate of
%. The zeros of h(x) are at
and
.

Answers

Answer:

The vertex of f(x) is at (-5,-10).

The function g(x) is decreasing at a rate of 5%.

The zeros of h(x) are at x = -3 and x = 1.

Step-by-step explanation:

Vertex of a quadratic function:

Suppose we have a quadratic function in the following format:

[tex]f(x) = ax^{2} + bx + c[/tex]

It's vertex is the point [tex](x_{v}, f(x_{v})[/tex]

In which

[tex]x_{v} = -\frac{b}{2a}[/tex]

If a<0, the vertex is a maximum point, that is, the maximum value happens at [tex]x_{v}[/tex], and it's value is [tex]f(x_{v})[/tex]

Decaying exponential function:

A decaying exponential function has the following format:

[tex]A(x) = A(0)(1-r)^{x}[/tex]

In which A(0) is the initial quantity and r is the decay rate.

Zeros of a function:

Given a polynomial f(x), this polynomial has roots [tex]x_{1}, x_{2}, x_{n}[/tex] such that it can be written as: [tex]a(x - x_{1})*(x - x_{2})*...*(x-x_n)[/tex], in which a is the leading coefficient.

Vertex of f:

The function f is given by:

[tex]3(x+5)^2 - 10[/tex]

Expanding the calculations to place at the correct format:

[tex]3(x+5)^2 - 10 = 3(x^2 + 10x + 25) - 10 = 3x^2 + 30x + 75 - 10 = 3x^2 + 30x + 65[/tex]

Which means that

[tex]a = 3, b = 30, c = 65[/tex]

The x-value of the vertex is:

[tex]x_{v} = -\frac{30}{2*3} = -5[/tex]

The y-value of the vertex is:

[tex]f(-5) = 3(-5+5)^2 - 10 = -10[/tex]

The vertex of f(x) is at (-5,-10).

Decreasing rate of g(x).

We have that:

1 - r = 0.95

So

r = 1 - 0.95 = 0.05

Which means that the decreasing rate is of 5%.

The zeros of h(x) are

The zeros are

x + 3 = 0 -> x = -3

x - 1 = 0 -> x = 1

So

The zeros of h(x) are at x = -3 and x = 1.

2. What is the composition f(g(x)) and the inverse of the composite (fog)
given f(x) = 2x + 3 and g(x) = x-5?​

Answers

Answer:

f(g(x)) = 2x - 7

g(f(x)) = 2x - 2

Step-by-step explanation:

basically, you just want to plug in the g(x) function wherever you see an x in the f(x) function

f(g(x)) = 2(x - 5) + 3

         = 2x - 10 + 3

         = 2x - 7

the inverse function is doing the same thing but plugging in f(x) wherever you see an x in the g(x) function

g(f(x)) = (2x + 3) - 5

         = 2x + 3 - 5

         = 2x -2

WILL GIVE BRAINLIEST TO BEST ANSWERED

Answers

Answer:

B

Step-by-step explanation:

Hope this helps

Answer:

It would be B

Step-by-step explanation:

Hope this helps

Gap sells jeans that cost $21.00 and sell for $29.95. the percent of markup based on cost is

Answers

Answer:

is this actually a question?

Step-by-step explanation:

Help Ratios Picture added!!

Answers

Answer:
25

Explanation:
A : B
4 : 5
20 : 25
Multiply the sides by 5

is this a positive or negative slope

Answers

Answer:

negative slope

Step-by-step explanation:

trust me

2(4)+ 4(1)= 12
Solution

Answers

2*4+4*1=12
8+4=12

2times 4 is 8 + 4 times 1 is 4 which if you add those up you will get 12
The answer is 12=12 I think

To multiply 4 x 5 3/8, the mixed number can be broken down into a whole number and a fraction. In this case, that whole number would be ____ and the fraction would be ___ eighths. Each of these parts are then ___ ___. Pls tell me the answer pls!

Answers

Answer:

Step-by-step explanation:

To multiply 4×5⅜, the mixed number can be broken down into a whole number and a fraction. In this case, that whole number would be 5 and the fraction would be three-eighths. Each of these parts are then multiplied by 4 and the products are added together.

4×5⅜ = 4×(5+⅜)

= 4×5 + 4×⅜

= 20 + 3/2

= 20 + 1½

= 21½

A town’s population of children increased from 376 to 421 during the past year.
Which equation shows how to find the percent increase?

Answers

Answer:

p = 421 - 376 over 376

Step-by-step explanation:

Challenge in a company, 95% of the workers are men. If 270people work for the company who
aren't men, how many workers are there in all? Use pencil and paper. Show two different ways that
you can solve this problem.
There are workers in all. (Type a whole num

Answers

Answer:

5,400

Step-by-step explanation:

5% = 270

270 ÷ 5 = 54

54 × 100 = 5400

11. in a class of 40 students. 26 are girls and 14 are boys. What is the ratio of girls to the total number of stude

Answers

Answer:

26;40  simplified is 13/20

Step-by-step explanation:

I am confused on what I need to do. someone please help?

Answers

Answer:

x = 16

Step-by-step explanation:

Since ∆ABC is congruent to ∆DEC, their corresponding angles would be equal to each other.

<B is congruent to <E, therefore,

<B = <E

x + 15 = 6x - 65 (substitution)

Collect like terms

x - 6x = -15 - 65

-5x = -80

Divide both sides by -5

x = 16

The distance around a lake is 8km on a map this distance around the lake is represented by 2 cm The on the map is what

Answers

Answer:

1 cm = 4 km.

Step-by-step explanation:

I think you want the scale of the map.

It is  1 cm = 8/2 = 4 km.

Erin wants to buy a set of paint brushes:

Store A sells a set for $25.00 and offers a 10% discount
Store B sells a set for $27.00 and offers a 20% discount
Store C sells a set for $26.00 and offers a 15% discount
I NEED THIS ASAP! worth 20 points!

Answers

Answer:

m

Step-by-step explanation:

Three friends at a video arcade win a total of 2,837 tickets. They decide to share the tickets equally. How many tickets will each friend receive?

Answers

Answer:

28373=947

Step-by-step explanation:

You divide 2837 by 3 then your is 947

Please I need help haha it’s for math

Answers

Answer:

1600

Step-by-step explanation:

pls brainliest

Answer:

hope it helped have a good day mate

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