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Vesna [10]
3 years ago
12

What number makes the statement true - 6=15

Mathematics
2 answers:
tiny-mole [99]3 years ago
7 0
Well, 21-6=15. I don't know if that's what you're looking for. Let me know if that works.
AVprozaik [17]3 years ago
5 0
The number that make this statement true is 21.
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A decade-old study found that the proportion of high school seniors who felt that "getting rich" was an important personal goal
juin [17]

Answer: H_0:p\leq0.72

H_a:p\neq0.72

Step-by-step explanation:

Given :  A decade-old study found that the proportion of high school seniors who felt that "getting rich" was an important personal goal was 72% .

Let 'p' be the new proportion of high school seniors who felt that "getting rich" was an important personal goal .

Claim : p\neq0.72

We know that the null hypothesis has equal sign.

Therefore , the null hypothesis for the given situation will be opposite to the given claim will be :-

H_0:p=0.72

And the alternative hypothesis must be :-

H_a:p\neq0.72

Hence,  the null hypothesis and the alternative hypothesis that we would use for this test :

H_0:p\leq0.72

H_a:p\neq0.72

5 0
3 years ago
The population of mastertown was 23,000 in 2012. assume that mastertowns population increases at a rate of 2% per year. write an
Svetlanka [38]
Alright, let's interpret it, first.

The question is asking us to first find two percent of 23,000, then right an equation.

Alright, first, let's find two percent of 23,000. To find that we must do 0.02*23,000

I got 460

So we know that Mastertown's population is increasing by 460 people per year. All we have to do now is plug that into the equation.

Population (y)= 460* amount of years (x)

So our final equation is y = 460x

Hope this helped! Ask any questions about it!
4 0
3 years ago
Eric has 183 coins all of them are nickels and dimes. If the total value of the coins is 14.45, how many of each denomination co
FromTheMoon [43]

Answer:

77 nickels

106 dimes

Step-by-step explanation:

Let there be n nickes and d dimes

Since there are 183 coins, we can write:

n + d = 183

Also, the value of nickel is 0.05 and dime is 0.1, total value is 14.45, so we can write:

0.05n + 0.1d = 14.45

Solving 1st equation for n, we have:

n = 183 - d

Putting this into 2nd equation and solving for d:

0.05n + 0.1d = 14.45\\0.05(183-d) + 0.1d = 14.45\\9.15-0.05d+0.1d=14.45\\0.05d=5.3\\d=106

There are 106 dimes

Since, n = 183 - d

n = 183 - 106

n = 77

There are 77 nickels

4 0
3 years ago
Classify the triangle by its angles and by its sides
mojhsa [17]

Answer:

Acute isoceles

Step-by-step explanation:

Two base angles of the triangle are equal making it isosceles

The top angle is less than 90° making it an acute angle

4 0
3 years ago
In the diagram, point X is the centroid. If<br> EX=8, what is the length of XC ?
Phoenix [80]

Answer:

16

Step-by-step explanation:

If X is the centroid that means that EC is a median along with the other lines that intersect inside the triangle. Medians drawn from a triangle have a special rule; this rule is that all medians have a 2:1 ratio between the different sections of one median. For example, EC is one median with the two sections XC and EX. Therefore XC and EX have a 2:1, with the 2 representing the longer section closest to the vertex. This means that XC is double EX, so to find XC simply double EX measurement, which is 8. So XC must equal 16.

7 0
2 years ago
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