What is 2/5 + 3/10 add and simplyfy ?

2 answers:

6 0

2/5 +3/10.. The LCD for 5 and 10 is 20

5 x 4 = 20 so 2 x 4 = 8. 2/5 = 8/20
10 x 2 = 20 so 3 x 2 = 6. 3/10 = 6/20

6/20 + 8/20 = 14/20 = 7/10
Hope I helped. I'm pretty sure I'm right. :))

sammy [17]3 years ago

4 0

7/10 which could also be 0.7

You might be interested in

Tools

tresset_1 [31]

Answer:

$81.55

Step-by-step explanation:

$15+15%=15x1.15=$17.25

$23+10%=23x1.1=$27.50

$32+15%=32x1.15=$36.80

Total=$81.55

(Time to find a cheaper shop)

4 0

3 years ago

In a certain Algebra 2 class of 29 students, 7 of them play basketball and 14 of them

Mariulka [41]

Answer:

<em>Two possible answers below</em>

Step-by-step explanation:

<u>Probability and Sets</u>

We are given two sets: Students that play basketball and students that play baseball.

It's given there are 29 students in certain Algebra 2 class, 10 of which don't play any of the mentioned sports.

This leaves only 29-10=19 players of either baseball, basketball, or both sports. If one student is randomly selected, then the propability that they play basketball or baseball is:

$\displaystyle P=\frac{19}{29}$

P = 0.66

Note: if we are to calculate the probability to choose one student who plays only one of the sports, then we proceed as follows:

We also know 7 students play basketball and 14 play baseball. Since 14+7 =21, the difference of 21-19=2 students corresponds to those who play both sports.

Thus, there 19-2=17 students who play only one of the sports. The probability is:

$\displaystyle P=\frac{17}{29}$