If x =3 then y=21 what is the value of x when y=105

Answers

Answer 1

Answer:

15

Step-by-step explanation:

21/3=7

x=y/7

so 105/7=x

the answer is 105/7=15

Answer 2

Answer: x = 15

Step-by-step explanation: Proportions.

3/21 = x/105 (cross multiply)105*3 = 21x (simplify)315 = 21x (divide)15 = x


Related Questions

Find the area of the triangle.

Answers

Step-by-step explanation:

4: Triangle area = b*h/2 = 8*10.5/2 = 42

5: b*h/2 = area

285 = 15*b/2

b = 38

If f(x) = 3x - 2, find f-'(x)

Answers

Answer:

f⁻¹(x) = (x + 2)/3

Step-by-step explanation:

I'm going to assume the question is asking for the inverse. If that is the case, you want to switch x and y in the equation and solve for y.

f(x) = 3x - 2

x = 3f(x) - 2

x + 2 = 3f(x)

(x + 2)/3 = f⁻¹(x)

Therefore, the inverse is f⁻¹(x) = (x + 2)/3.

IS SOMEONE NICE ENOUGH TO HELP ME WITH THIS PLEASE? I"LL GIVE BRAINLIEST

Answers

Answer:

$5,603.76

Step-by-step explanation:

For this problem you just need to plug in the number of years (5) for time then solve

[tex]300(1.05)x^{12(5)} =5603.76[/tex]

could someone please help me with this​

Answers

Answer:

The answer is A.

Step-by-step explanation:

To gain support of the Chinese government for their policies.

could you help me? please i will give 16

Answers

Answer:

c. -5

D. Add 3 positive and add 3 negative

B. -6

Step-by-step explanation:

C• -5

B• -6


I only know these

Arnie scored 34 points in 16 soccer games. Maria scored 18 points in 15 soccer games. Who scored more points per game?

Answers

Answer:

Arnie

Step-by-step explanation:

Arnie : 34 ÷ 16 = 2.2

Maria : 18÷ 15= 1.2

Explain on the next slide how in 3 hours the car wouldn't travel 160 miles.​

Answers

Answer:

the car would have to be going under 5mph

Step-by-step explanation:

equation is equivalent to 4x-2=30

Answers

the answer is x=8 your welcome

The formula relating velocity to distance is v=dlt. Solve the equation for t.

Answers

Answer:

t=v/dl

Step-by-step explanation:

v=dlt you want the t to be by itself on one side

t=v/dl so divide the other side by d and l

Which table has a constant of proportionality between yyy and xxx of \dfrac14
4
1

start fraction, 1, divided by, 4, end fraction?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
xxx yyy
888 222
101010 2.52.52, point, 5
121212 333

(Choice B)
B
xxx yyy
333 111
666 222
999 333

(Choice C)
C
xxx yyy
666 1.51.51, point, 5
777 222
888 2.52.52, point, 5
KHAN ADADEMY A B OR C , CHOOSE ONE ANSWER

Answers

Answer:

(Choice A) is the correct answer

Answer:

C

Step-by-step explanation:

xx

yy

18

1818

3

33

27

2727

4

1

2

4

2

1

4, start fraction, 1, divided by, 2, end fraction

33

3333

5

1

2

5

2

1

5, start fraction, 1, divided by, 2, end fraction

I need help with this​

Answers

Answer:

9/14 dividend

27/28 quotient

Step-by-step explanation:

Dividend is the one being divided by the divisor

quotient is the answer

hiiii pls help i’ll give brainliest if you give me a correct answer ty!

Answers

Answer:

Incorrect

I did the math and that is the awnser

Answer:

25 is the tenth, 17 is the hundreth and 42 is the ten thousands

Step-by-step explanation:

The Quick Slide Skate Shop sells the Ultra 2002 skateboard for a price of $85.95. However, the Quick Slide Skate Shop is offering a one-day discount rate of 40% on all merchandise. How much will the Ultra 2002 skateboard cost after the discount?

A. $51.57

B. $71.50

C. $38.40

D. $53.90

Answers

The answer is B Because I am smart

What is the inverse of y=2/3x-5

Answers

Switch the x and y, Then solve for y. In order to check your answer just replace the x of your original equation with the inverse equation. If everything cancels out except the x, then it's the inverse.

The inverse of y=2/3x-5 is  3/2x + 15/2

What is inverse function?

An inverse is a function that serves to “undo” another function.

Given a function, y = 2/3x -5

Exchange x and y

x = 2/3y -5

Solve for y

Add 5 to each side

x+5 = 2/3y-5+5

x+5 = 2/3y

Multiply each side by 3/2

3/2(x+5) = 3/2*2/3y

3/2x + 15/2 =y

Hence, The inverse is 3/2x + 15/2

For more references on inverse function, click;

https://brainly.com/question/2541698

#SPJ2

What is PLATO?
People keep saying it but I don't know what it is.

Answers

Are you talking about the person?

Answer:

All I found other than the greek god dude is this, PLATO (Programmed Logic for Automatic Teaching Operations)was the first generalized computer-assisted instruction system.

Step-by-step explanation:

I hope you figure it out

Nadia will be x years old y years from now. How old was she z years ago?

Answers

A years old. Na but are you needing an equation ?

Taylor's computer randomly generate numbers
between 0 and 4, as represented by the given uniform
density curve
What percentage of numbers randomly generated by
Taylor's computer is greater than 1.9?
Random Number Generated
by Computer
o 25%
0 47.5%
0 52.5%
75%
1
2
3
Random Number
Save and Evit
Submit

Answers

Answer:

It’s 52.5

Step-by-step explanation:

Got it on edge

The percentage of numbers randomly generated by Taylor's computer that is less than 0.5 will be 12.5% .

What is the percentage?

A percentage is a minimum number or ratio that is measured by a fraction of 100.

A numerical distribution with continuous results is a density curve. A density curve is, in other terms, the graph of a continuous distribution. Which implies that density curves can represent continuous quantities like time and weight rather than discrete events like rolling a die (which would be discrete).

Also the bell-shaped "normal distribution," density curves either lie above or on a horizontal line (one of the most common density curves).

The percentage of numbers randomly generated by Taylor's computer are less than 0.5 is;

P(0≤X≤0.5)

= 1/4 (0.5 - 0)

= 1/4 (0.5)

= 0.125

That is 12.5%

Hence, The percentage of numbers randomly generated by Taylor's computer that is less than 0.5 will be 12.5% .

Learn more about percentages;

brainly.com/question/24159063

#SPJ5

An equilateral triangle has measurements as shown in the diagram. What is the area of the triangle?

Answers

Answer:

124.8

Step-by-step explanation:

The equation for the area of a triangle is base length (12) multiplied by the height length (10.4) divided by 2. Two of the same triangle create a rectangle, and by multiplying the base and the height you find this rectangle. To find the are of the triangle, you just need to remove the other triangle (divide by 2).

A=b*h/2

geometry retake pls help!!!

Answers

Answer:

∠D

∠EDC

∠CDE

Step-by-step explanation:

those are the only ways I can think of, I hope that helps :)

Plz help due tomorrow

Answers

-0.7 that is what the answer is

Alex's checking account balance is $150.50. He withdraws $25.37 for lunch.
Then he deposits $42.25 later that day. What is his balance at the end of
the day?

Answers

Answer:

$167.38

Step-by-step explanation:

$150.50-$25.37=$125.13

$125.13+$42.25=$167.38

Can i plsss have the answer ill give u brainliest

Answers

Step-by-step explanation:

after 4 hours, the water level decreased by 8 feet

which is -8

Therefore -8/4 = -2 change in water level every hour

Answer:

The constant rate of change is 2 feet every hour.

Step-by-step explanation:

Since the level of the water was at 10 feet at 2 pm, and the water at 6 pm was at 2 feet, the water level dropped 8 feet in 4 hours.

With this information we can create the ratio 4:8 and when you simplify the ratio down to 1, you get 1:2

1 Representing 1 hour

2 Representing 2 feet

Every hour, the water level drops 2 feet.

I tried search this but it wouldn’t work

Answers

Answer:

I dont know that try asking one of the tutors one here

What is the slope of the line that passes through the points (1,-7) and (5,-25)?

Answers

the slope of the line is -9/2

adam is 4 times as old as Ben. Adam is also 12 years older then Ben. How old is Ben?

Answers

Answer:

maybe 48

Step-by-step explanation:

it says adam is 12 yrs older so mutiply that by 4

Answer:

3

Step-by-step explanation:

since it says Adam is 4 times older than Ben if you divide 12 by 4 you get 3

i need helppppppppop​

Answers

Step-by-step explanation:

(a)

[tex]2 \frac{1}{2}\div \frac{5}{2}=\dfrac{\frac{2\times2+1}{2}}{\frac{5}{2}}\\\Rightrrow\dfrac{\frac{5}{2}}{\frac{5}{2}}=1[/tex]

(b)

[tex]3\div \frac{2}{3}=\dfrac{3}{\frac{2}{3}}=\frac{3\times3}{2}=\frac{9}{2}[/tex]

(c)

[tex]6 \frac{3}{4}\div 2\frac{1}{4}=\dfrac{\frac{6\times4+3}{4}}{\frac{2\times4+1}{4}}\\\Rightarrow \dfrac{\frac{27}{4}}{\frac{9}{4}}=\frac{27}{9}=3[/tex]

(d)

[tex]\frac{1}{3}\div 3=\dfrac{\frac{1}{3}}{3}=\frac{1}{9}[/tex]

PLEASE GOD HELP ME i will award brainlesst i have to have this turned in very soon please be nice i love you <3<3<3

Answers

I’m most likely wrong but maybe the last one again most likely wrong

help me plsssssssrrrrrrrrrrrrrrrrr

Answers

Answer:

2 TO 1

2:1

Step-by-step explanation:

Apply the distributive property to the expression 24x + 18y to produce the equivalent expression.
(HINT: You need to complete factoring using the GCF)

Answers

Answer:

6(4x+3y)

Step-by-step explanation:

24 and 18 have a HCF of 6, so yeah

Evaluate-2.75 - f for f = -6.5

Answers

Answer:

Step-by-step explanation:

we have f=-6.5

-2.75- (-6.5)= -2.75+6.5=3.75

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