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Inga [223]
3 years ago
11

What is 11 4/5 plus 3 3/5

Mathematics
2 answers:
Neko [114]3 years ago
5 0

The answer is 15 and 2/5

Phoenix [80]3 years ago
4 0

First, you add the whole numbers. 11+3= 14.

Then, for the fractions since you have the same denominator you can just add the numerators. 4+3=7.

You now have 14 7/5 Since the numerator is higher than the denominator, add one to the 14. And subtract 5 from 7

7.14+1=15
7-5=2
Your answer is 15 2/5

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A simple random sample of 60 adults is obtained from a normally distributed​ population, and each​ person's red blood cell count
Goshia [24]

Answer:

Step-by-step explanation:

sample size = n = 60

Sample mean = x bar = 5.25

Sample sd = s = 0.55

Std error of sample = s/sqrt n = 0.071

H_0: x bar = 5.4\\H_a: x bar

(One tailed test)

Mean difference = 5.25-5.4 = -0.15

Test statistic t = Mean diff/Se = -2.11

df=59

(since population std dev is not known t test is used)

p value =0.01955

Since p <alpha =0.05 we reject null hypothesis.

The results suggest about the sample​ group that the sample is from a population with a mean less than 5.4

7 0
4 years ago
Graph 5x + 3y = 15 on a graph ​
DochEvi [55]

Answer:

x and y

Step-by-step explanation:

you have to put 5 on the x axes and 3 on the y axes to cordanate 15

4 0
4 years ago
PLEASE HELP ME ASP! Brainlist and 25 points!
Bezzdna [24]

Answer:

Answer is in the explanation

Step-by-step explanation:

I don't know exactly word from word what your choices look like...

but I can describe per each box what happened in my own words:

First box:  They multiply first equation by 3 and the second equation by 2 to obtain the equations in that first box.

Second box: They subtracted the two equations in the first box to obtain 1x+0y=2 which means 1x=2 or x=2 (this is called solving a system by elimination

Third box: They used their first original equation (before the multiplication manipulation) and plug in the value they got for x which was 2 giving them 3(2)-2y=10

Fourth box: They simplified the equation 3(2)-2y=10 by performing the multiplication 3(2) giving them 6-2y=10

Fifth box:  They subtracted 6 on both sides giving them -2y=4

Sixth box:  They divided both sides by -2 giving them y=-2

I will summarize then what I wrote above:

1st box: Multiplication Property of Equality

2nd box: Elimination

3rd box: Substitution (plug in)

4th box: Simplifying

5th box:  Subtraction Property of Equality

6th box: Division Property of Equality

4 0
3 years ago
What is the scientific notation 3,400,000,000
Diano4ka-milaya [45]
3.4^9 is the answer/.............
6 0
4 years ago
Please help me<br><br> question attached below:)))
atroni [7]

Answer:

  • D(5, 4), E(14, 7), M(9.5, 5.5)

Step-by-step explanation:

As AD = 1/4AB and DE ║ AC, the ratio CE/CB = 1/4, or CE = 1/4CB

<u>Find the coordinates of D:</u>

  • x = 1 + 1/4(17 - 1) = 1 + 4 = 5
  • y = 5 + 1/4(1 - 5) = 5 - 1 = 4

<u>Find the coordinates of E:</u>

  • x = 13 + 1/4(17 - 13) = 13 + 1 = 14
  • y = 9 + 1/4(1 - 9) = 9 - 2 = 7

<u>Find the coordinates of the midpoint M of DE:</u>

  • x = (5 + 14)/2 = 19/2 = 9.5
  • y = (4 + 7)/2 = 11/2 = 5.5
8 0
3 years ago
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