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Yanka [14]
4 years ago
5

explain why 45/100 is written as decimal with a 4 in the tenths place and a 5 in the hundredths place

Mathematics
2 answers:
Fofino [41]4 years ago
7 0

it's like that because the amount is 45/100 so decimals are written like that

Tpy6a [65]4 years ago
3 0

Answer and Explanation:

To find : Explain why \frac{45}{100} is written as decimal with a 4 in the tenths place and a 5 in the hundredths place ?

Solution :

When we write fraction as decimal we place decimal according to number of zeros in the denominator.

As \frac{45}{100}=0.45

According to place value system,

Ones   |    Tenths        Hundredths

   0               4                    5

As first digit to the right of decimal point is basically tenths place and second digit to the right of decimal point is basically hundredths place.

So, When we write \frac{45}{100} in decimal form i.e. 0.45 then 4 in the tenths place and a 5 in the hundredths place.

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Solve for x and round your answer to the nearest tenth.
Yuliya22 [10]

Answer:

I believe it should be 32.9

Step-by-step explanation:

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The set of whole numbers includes ______ and all positive integers
victus00 [196]
<span>The set of whole numbers includes zero, all negative integers, and all positive integers. Be sure to exclude any decimals, fractions etc. Good luck~ c:</span>
7 0
3 years ago
Zipora wants to construct a triangle that has the following angle measures: 50°, 75°, and 55°. How many triangles can she make?
Alborosie
As sum of all angles of triangle equal to 180 degrees.
First we have to add the angles.
50+75+55
=50+130
=180 degrees

Answer: Zipora can construct exactly one triangle.
4 0
3 years ago
Read 2 more answers
It is advertised that the average braking distance for a small car traveling at 65 miles per hour equals 120 feet. A transportat
Mrrafil [7]

Answer:

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean is equal to 120 or not, the system of hypothesis would be:  

Null hypothesis:\mu = 120  

Alternative hypothesis:\mu \neq 120  

Part 2

Calculate the statistic

We can replace in formula (1) the info given like this:  

z=\frac{114-120}{\frac{22}{\sqrt{36}}}=-1.636    

P-value

Since is a two sided test the p value would be:  

p_v =2*P(z  

Step-by-step explanation:

Data given and notation  

\bar X=114 represent the sample mean  

\sigma=22 represent the population standard deviation

n=36 sample size  

\mu_o =120 represent the value that we want to test

\alpha represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

Part 1

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean is equal to 120 or not, the system of hypothesis would be:  

Null hypothesis:\mu = 120  

Alternative hypothesis:\mu \neq 120  

If we analyze the size for the sample is > 30 and we  know the population deviation so is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:  

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}  (1)  

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Part 2

Calculate the statistic

We can replace in formula (1) the info given like this:  

z=\frac{114-120}{\frac{22}{\sqrt{36}}}=-1.636    

P-value

Since is a two sided test the p value would be:  

p_v =2*P(z  

8 0
3 years ago
thomas has 6.35 in dimes and quarters the number of dimes is three more than three times the number of quarters how many quarts
Feliz [49]

Answer:

11 quarters

Step-by-step explanation:

If Thomas ignores the extra 3 dimes, he can arrange his coins in groups of 3 dimes and 1 quarter, each group valued at 55¢. It takes

... 6.05/0.55 = 11

groups to bring the total value to the $6.05 remaining after ignoring the extra dimes.

Thomas has 11 quarters and 36 dimes.

6 0
4 years ago
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