All categories

2 years ago

What is this answer I don't get it guys help me out 5(x+5)=65

Mathematics

2 answers:

Arisa [49]2 years ago

5 0

5(x+5)=65
5x+25=65
-25 -25
5x=40
x=8

blsea [12.9K]2 years ago

4 0

5(x+5)=65
5x+25=65
you subtract 25 from both sides.
5x+25-25=65-25
5x=40
you also divide both sides by 5
5x/5=40/5

x=8

You might be interested in

A city is designing a new trail system that will be

lyudmila [28]

Step-by-step explanation:

the answer is 6.125 and its will be divided by 125

3 0

2 years ago

Mary has 15 points with the total value of $1.75 if the coins are nickels and quarters how many of each kind are there

torisob [31]

Answer:

The number of nickel coins is 10 and the number of quarter coins is 5

Step-by-step explanation:

<u><em>The correct question is</em></u>

Mary has 15 coins with the total value of $1.75 if the coins are nickels and quarters how many of each kind are there

Let

x ----> the number of nickel coins

y ----> the number of quarter coins

Remember that

$1\ nickel=\$0.05$

$1\ quarter=\$0.25$

we know that

Mary has 15 coins

$x+y=15$ -----> equation A

The total value of the coins is $1.75

$0.05x+0.25y=1.75$ ----> equation B

Solve the system by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

The solution is the point (10,5)

therefore

The number of nickel coins is 10 and the number of quarter coins is 5

8 0

2 years ago

Keyona had 254 dollars to spend on 9 books. After buying them she had 11 dollars. How much did each book cost ?

guajiro [1.7K]

Answer:

Each book costs $27.

Step-by-step explanation:

Subtract 254 - 11.

254 - 11 = 243

Now, divide 243 by 9.

243 ÷ 9 = 27

Hope this helped!

8 0

2 years ago

Read 2 more answers

A company wants to evaluate its attrition rate, in other words, how long new hires with the company. Over the years, they have e

nlexa [21]

Answer:

2.) 0.10 (3.) 0.10 (4.) 2.43

Step-by-step explanation:

Given that:

x p(x)

0 0.12

1 0.18

2 0.30

3 0.15

5 0.10

6 0.05

X : __0__ 1 ___ 2 ___ 3 _____ 4 ____ 5 ____ 6

p(x):0.12_0.18_0.30_0.15__0.10___0.10 ___0.05

Σ of p(x) = 1

(0.12 + 0.18 + 0.30 + 0.15 + x + 0.10 + 0.05) = 1

0.9 + x = 1

x = 1 - 0.9

x = 0.1

2.)

P(x = 4) = 0.10

3.)

P(x = 5) = 0.10

4.)

Σ(x * p(x)) :

(0*0.12) + (1*0.18) + (2*0.3) + (3*0.15) + (4*0.1) + (5*0.1) + (6*0.05) = 2.43

7 0

2 years ago

The two largest lizards in the united states are the gila monster and the chuckwalla. The average gila monster os 0.608 meter lo

docker41 [41]

The answer is 1.54 meters

5 0

2 years ago