All categories

3 years ago

When X equals eight, Y equals 20 find Y when x equals 42

Mathematics

2 answers:

snow_tiger [21]3 years ago

6 0

If x equals 8 but then equals 42 then you multipled by 5.25, so multiply 20 by 5.25. Which is 105, then y equals 105.

gavmur [86]3 years ago

4 0

Y is equal to 105 because you divide 42 by 8 and get 5.25 (the amount it increased). then you multiply by its previous version 20 to get 105.

You might be interested in

Convert 76,000 ml into L. Please show your work.

ser-zykov [4K]

Ok so there are 1,000 ml in every liter so
76000 ml= L which is a thousand ml
76000/1000
=76 L

5 0

3 years ago

There are two numbers whose sum is 64. The larger number subtracted from 4 times the smaller number gives 31. Find the numbers.

Pani-rosa [81]

There are two numbers whose sum is 64. The larger number subtracted from 4 times the smaller number gives 31. Then the numbers are 45 and 19

<h3>Solution:</h3>

Given that, There are two numbers whose sum is 64.

Let the number be a and b in which a is bigger.

Then, a + b = 64 ------ eqn (1)

The larger number subtracted from 4 times the smaller number gives 31.

4 x b – a = 31

4b – a = 31 ----- eqn (2)

We have to find the numbers.

So, from eqn (2)

a = 4b – 31

Subatitute a in (1)

4b – 31 + b = 64

On solving we get

5b = 64 + 31

5b = 95

b = 19

So, b = 19, then eqn 1

a + 19 = 64

On simplification,

a = 64 – 19

a = 45

Hence, the two numbers are 45 and 19

3 0

3 years ago

F(x) = 4x f(x) = −x + 5 what is the solution

vagabundo [1.1K]

As function is = 4x
so
4x=-x+5
5x=5
x=1

6 0

4 years ago

WHY CAN'T ANYONE HELP ME? :( Jen Butler has been pricing Speed-Pass train fares for a group trip to New York. Three adults and

devlian [24]

Answer:

Children: $13

Adults: $18

Step-by-step explanation:

Well for both sets we can set up the following system of equations,

$\left \{ {{3a + 4c = 106} \atop {2a + 3c = 75}} \right.$

So first we need to solve for a in the first equation.

3a + 4c = 106

-4c to both sides

3a = -4c + 106

Divide 3 by both sides

a = -4/3c + 35 1/3

Now we plug in that a for a in 2a + 3c = 75.

2(-4/3c + 35 1/3) + 3c = 75

-8/3c + 70 2/3 + 3c = 75

Combine like terms

1/3c + 70 2/3 = 75

-70 2/3 to both sides

1/3c = 4 1/3

Divide 1/3 to both sides

c = 13

Now we can plug in 13 for c in 3a + 4c = 106,

3a + 4(13) = 106

3a + 52 = 106

-52 to both sides

3a = 54

Divide 3 by both sides.

a = 18

Thus,

an adult ticket is $18 and a children's ticket is $13.

Hope this helps :)

5 0

3 years ago

Read 2 more answers

Reflect the shape A in the line

riadik2000 [5.3K]

i dont knowkkkkkkkkkkkkk

5 0

2 years ago