Write an expression for the operation described below. r times 10​

Answer:

you may have done this wrong

Step-by-step explanation:

5x-3=121

add 3 on both sides

5x=-36<------what you did was wrong

you should have ended up with...

5x=124

divide by 5 on both sides

x=24.8

Answer:

Actually, 20 divided by 2 1/3 equals 8.57 repeating (8.571428...), which can be rounded to 8.57 to two decimal places.

To see why, we can convert the mixed number 2 1/3 to an improper fraction:

2 1/3 = (2 * 3 + 1) / 3 = 7/3

Then, we can rewrite the division as a fraction and simplify:

20 / (7/3) = 20 * (3/7) = 60/7 = 8.571428...

So, 20 divided by 2 1/3 is approximately 8.57.

Answer:

Which equation?

Step-by-step explanation:

1. If a shift in demand and/or supply has taken place, identify the change and list the determinant.

Answer:

The answer is below

Step-by-step explanation:

The demand has increased or shifted to the right.

The supply did not change.

The determinant for this situation is the increase in demand

However, with the price increment, the will be an increase in supply.

Answer:

Step-by-step explanation:

a) edj

b) ed

c) i think ag

Answer:

18x ≥ 160

Step-by-step explanation:

Ashley has two jobs: mowing lawns and babysitting. She earns $10 per hour mowing lawns (x) and $8 per hour babysitting (y). And she wants to earn at least $160 per week.

Let the number of hours = x

At least = Greater than or equal to

Slope intercept form

= y = mx + c

y = $160

Hence

10x + 8x ≥ 160

18x ≥ 160

Answer:

C

Step-by-step explanation:

Cos (angle) = Adjacent/Hypotenuse

Cos 20° = 12/x

Answer:

$50

Step-by-step explanation:

Answer:50

Step-by-step explanation:

Step-by-step explanation:

40%=123

/2    =  /2

20%=61.5

x5   = x5

100%=307.5

Answer:

Step-by-step explanation:

√(7² + 2²) = √53 ≅ 7.28

hes right the answer would be 50+200n so 200

Answer:

no-one God is the highest

Step-by-step explanation:

Answer:

No Church In The Wild

Step-by-step explanation:

Answer:

5x

Step-by-step explanation:

We can use a theoreom to help us here.

Theorom of extereor angles. It would be 5x.

Answer:

ok

Step-by-step explanation:

Answer:

1,4,9,16

[tex] \frac{t2}{t1} = \frac{4}{1} \: \: \: \: \geometric[/tex]

Step-by-step explanation:

you first divide the second term by the first term

Answer:

<A=135°

now

3x+6+x+2=180

sum of two opposite angle of the cyclic quadrilateral is 180

4x=180-8

x=172/4=43°

<A=3×43+6=135° is your answer

Complete Question

A set of magical wand prices are normally distributed with a mean of 50 dollars and a standard deviation of 4 dollars. A blackthorn wand has a price of 45.20. What proportion of wand prices are lower than the price of the blackthorn wand? You may round your answer to four decimal places

Answer:

0.1151

Step-by-step explanation:

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score = $45.20

μ is the population mean = $50

σ is the population standard deviation = $4

We are solving for x < 45.20

Hence:

z = 45.20 - 50/4

z = -1.2

Probability value from Z-Table:

P(x<45.20) = 0.11507

Approximately to 4 decimal places = 0.1151

Therefore, the proportion of wand prices that are lower than the price of the blackthorn wand is 0.1151

Answer:

144.375 or 144 3/8

Step-by-step explanation:

volume of rectangular prism= length x width x height

5in. x 2 3/4in. x 10 1/2 in.  <- fractions can be converted to:

5in. x 2.75in. x 10.5 in.  <- multiply and get:

= 144.375in.

in fraction form: 144 and 3/8

Answer:

3/8

Step-by-step explanation:

Answer:

3/8

Step-by-step explanation:

You divide fractions by flipping it around and multiplying it...

The reciprocal of 2 is 1/2

So 3/4*1/2=3/8

The area of the circle is 28.27433

Step-by-step explanation:

= 23 × 11 - 23 × 10

= 23 ( 11 - 10)

= 23 ( 1)

= 23

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you .

Answer:

Yes it does

Step-by-step explanation:

-4 times -5 equals 20, then you subtract -7 which gives you 27

Answer: B

Step-by-step explanation:

they have no correlation

Answer:

B is the correct answer. Hope this helps

The number of cubes in the rectangle prism will be 320. Then the correct option is D.

Let the prism with a length of L, a width of W, and a height of H. Then the volume of the prism is given as

V = L x W x H

A right rectangular prism is completely filled with small cubes. Each small cube has edges that are 1/4 inches long. The volume of the prism is 5 inches.

Let 'n' be the number of cubes. And all the sides of the cube are congruent. Then the volume of each cube is calculated as,

Volume of cube = (1/4) x (1/4) x (1/4)

Volume of cube = 1 / 64 cubic inches

The volume of the rectangle and the volume of small 'n' cubes will be equal. Then we have

Volume of 'n' cube = Volume of a rectangle

(1 / 64) n = 5

n = 5 x 64

n = 320

The number of cubes in the rectangle prism will be 320. Then the correct option is D.

More about the volume of the rectangular prism link is given below.

https://brainly.com/question/21334693

#SPJ2

Answer:

The runner with a mean running time of 6.2

Step-by-step explanation:

The value range parameters of the three runners are;

The mean running time of the runner, A = 6.2

The mean running time of the runner, B = 7.4

The mean running time of the runner, C = 6.9

The interquartile range of the runner, A = 1.1

The interquartile range of the runner, B = 0.02

The interquartile range of the runner, C = 0.08

Whereby the number of running times for the 3 runners is large, and with the assumption that distribution of the mean is normal, we have

The mean = The mode of  the data

Therefore, the minimum, and maximum running time of the runners are;

Runner A;

Minimum running time = 6.2 - 1.1 = 5.1

Maximum running time = 6.2 + 1.1 = 7.3

Runner B;

Minimum running time = 7.4 - 0.02 = 7.38

Maximum running time = 7.4 + 0.02 = 7.42

Runner C;

Minimum running time = 6.9 - 0.08 = 6.82

Maximum running time = 6.9 + 0.08 = 6.98

The fastest runner has the lowest running time;

Therefore, the fastest runner is runner A with a mean running time of 6.2  with a minimum running time of 5.1

Answer:

k=2 or 5/4

Step-by-step explanation:

8k^2-26k+20=0

2(4k²-13k+10)=0

(4k²-13k+10)=0/2

4k²-8k-5k+10=0

4k(k-2)-5(k-2)=0

(k-2)(4k-5)=0

either.

k=2

or

k=5/4

my best guess for this is x + 1

x + 1 4