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jeyben [28]
3 years ago
9

Twice the sum of a number and 3 is the same as 11 increased by the number.

Mathematics
1 answer:
ANEK [815]3 years ago
8 0
Twice the sum of a number and 3

2 (x+3)

is the same

=

as 11 increased by the number

11 + x

so...

2 (x+3) = 11 + x

2x+6 = 11+x

2x-x = 11-6
x = 5
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Is 0.752 a rational number?
TiliK225 [7]
No, Bec it can not be divided by itself? Anyway no also Bec it’s a decimal
6 0
3 years ago
Read 2 more answers
Suppose we select a simple random sample of size n=250 from a large population with a proportion p of successes. Let p be the pr
Tom [10]

Answer:

B.0.15

Step-by-step explanation:

To approximate a binomial distribution as a normal distribution, two conditions must be met:

np > 10

nq = n (1−p) > 10

Here, n = 250.  Check each value of p to see if it meets the conditions.

A. p = 0.03

np = 7.5, nq = 242.5

B. p = 0.15

np = 37.5, nq = 212.5

C. p = 0.02

np = 5, nq = 245

D. p = 0.97

np = 242.5, nq = 7.5

E. p = 0.99

np = 247.5, nq = 2.5

Of the five choices, only B meets both conditions.

6 0
3 years ago
A container has 360 gallons ; daniel took 1/3 of water to give to the animals in the ranch; how many gallons of water are left?
Mrrafil [7]

Answer: 240 gallons

Step-by-step explanation:

From the question, we are informed that the container has 360 gallons and that Daniel took 1/3 of water to give to the animals in the ranch. Therefore, the amount of water that Daniel took will be:

= 1/3 × 360

= 120 gallons

Since we have 360 gallons at the beginning and Daniel has taken 120 gallons, the amount of gallons that'll be left will be:

= 360 - 120

= 240 gallons

8 0
3 years ago
Grace is going to a carnival that has games and rides. Each game costs $1.50 and each ride costs $2.50. Grace spent $16.50 altog
Rama09 [41]

Answer:

Number of Rides:     5.5R = 16.5  

Number of Games:    1.5G  = 9

Step-by-step explanation:

Given

Represent the games with G and the Rides with R

G = 1.50 -- cost

R = 2.50 --- cost

Total = 16.50 -- cost

Required

Represent the system using an equation

The equation can be represented as follows;

G + R = Total

Assume She plays G games and had R rides, we have

1.5G + 2.5R = 16.5

Since she plays twice as much games as rides,

This implies;

G = 2R

So, we have

1.5 * 2R + 2.5R = 16.5

3R + 2.5R = 16.5

5.5R = 16.5 --- This equation can be used to solve for Number of Rides

Solving further

R =16.5/5.5

R =3

Substitute 3 for R in 1.5G + 2.5R = 16.5

1.5G + 2.5 * 3 = 16.5

1.5G + 7.5 = 16.5

Solve for 1.5G

1.5G  = 16.5 - 7.5

1.5G  = 9 --- This equation can be used to solve for Number of Games

Solving further

G = 9/1.5

G = 6

5 0
3 years ago
What is the solution set of -9 x ≤ 27? x ≤ -3 x ≥ -3 x ≤ 3 x ≥ 3
aleksandrvk [35]

Answer:

The answer is B) x ≥ -3

Step-by-step explanation:

-9x ≤ 27

reverse the inequality:

9x ≥ -27

x ≥ -27/9

x ≥ -3

3 0
4 years ago
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