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labwork [276]
4 years ago
7

Whats the value of y 2y + 15 = 4y - 45

Mathematics
2 answers:
kati45 [8]4 years ago
8 0

Answer:

\boxed{\bold{y=30}}

Step By Step Explanation:

[ Step One ] Subtract 15 From Both Sides

\bold{2y+15-15=4y-45-15}

[ Step Two ] Simplify

\bold{2y=4y-60}

[ Step Three ] Subtract 4y From Both Sides

\bold{2y-4y=4y-60-4y}

[ Step Four ] Simplify

\bold{-2y=-60}

[ Step Five ] Divide Both Sides By -2

\bold{\frac{-2y}{-2}=\frac{-60}{-2}}

[ Step Six ] Simplify

\bold{y=30}

Rudiy274 years ago
3 0
The answer is 30 you don’t even need this app to answer that question use photo math
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andy picked 5 tulips.brianna picked 3 more tulips than andy , carley picked 16 tulips. how many times as many tulips did carley
tatyana61 [14]
Andy picked 5
brianna picked 3 more then andy...she picked 8
carley picked 16

carley picked 2 times as many tulips as brianne....because carley picked 16 and brianna picked 8
8 0
3 years ago
Read 2 more answers
There are eleven people on a softball team and nine different positions. Work through the questions to determine how many ways a
jek_recluse [69]

Answer:

19958400

10

8

1814400

Step-by-step explanation:

* Lets explain how to solve the problem

- Permutation is the act of arranging the members into order

- The number of permutations of n members taken r at a time is

  denoted by nPr

- nPr = n!/(n - r)! , where n! means n(n - 1)(n - 2)(n - 3) ......... × 1

* Lets solve the problem

- There are eleven people on a softball team

∴ n = 11

- There are nine different positions

∴ r = 9

∴ The number of ways can be made = 11P9

∵ 11P9 = 11!/(11 - 9)! = 11!/2! = 19958400

* The number of total arrangements of the player is 19958400

- If Amy does not want to play pitcher

∵ They are 11 players

∴ The number of players can be pitch = 11 - 1 = 10

* If Amy does not want to play pitcher, then there are now 10 people

 available to pitch

- Assuming the pitcher has already be chosen

∴ There are 10 remaining players

∵ The positions are 9

∴ The remaining positions = 9 - 1 = 8

* There are 8 remaining positions

- Lets find how many ways to arrange the remaining positions

∵ n = 10

∵ r = 8

∴ 10P8 = 10!/(10 - 8)! = 10!/2! = 1814400

* The number of ways to arrange the remaining players is 1814400

4 0
3 years ago
Read 2 more answers
PLEASE ANSWER WILL GIVE POINTS!!!!!!!!!!!!!
Gennadij [26K]

Answer:

1) 27.374

2)9.177

Step-by-step explanation:

1) To get the value of x , we use the appropriate trigonometric ratio

From what we are given;

we have the hypotenuse ( the side facing the right angle) and the adjacent

The trigonometric identity to use here is the cos

The cos of an angle is the ratio of the adjacent to the hypotenuse

cos 64 = 12/x

x = 12/cos 64

x = 27.374

2) Here, we are given the hypotenuse and the opposite

The trigonometric ratio to use here is the sine

the sine of an angle is the ratio of the opposite to the hypotenuse

thus, we have it that;

sin 35 = x/16

x = 16 sin 35

x = 9.177

4 0
3 years ago
What is the Pythagorean relationship between PQR triangle
IrinaK [193]
It is

hypotenuses^2 = base^2 + perpendicular^2

hope it helped

5 0
3 years ago
Read 2 more answers
Compound interest of $1000 is invested at 10% compounded continuously, the future value s at any time t in years is given by s=1
crimeas [40]

Answer: 6.93 years

Step-by-step explanation:

Given

Rate of interest is r=10\%

Future value is given by s=1000e^{0.1t}

For the investment to double itself, i.e. s=2000

\Rightarrow 2000=1000e^{0.1t}\\\Rightarrow 2=e^{0.1t}\\\\\text{Taking log both sides}\\\\\Rightarrow \ln 2=0.1t\\\\\Rightarrow t=\dfrac{\ln 2}{0.1}\\\\\Rightarrow t=6.93\ \text{years}

It takes around 6.93 years to double the investment.

8 0
3 years ago
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