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tino4ka555 [31]
3 years ago
5

Help me please I don’t know how to do it

Mathematics
1 answer:
JulijaS [17]3 years ago
4 0

Answer: The answer is 51

Step-by-step explanation:

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nick has to build a brick wall. Each row of the wall requires 6/2 bricks. There are 10 rows in the wall. How many bricks will ni
alex41 [277]

Answer:

D. 10 x 6/2

Step-by-step explanation:

each row = 6/2

10 rows all together

so you do 10 x 6/2

5 0
3 years ago
Bobby is testing the effectiveness of a new cough medication. There are 100 people with a cough in the study. Seventy patients r
Tresset [83]

Answer:

0.665

Step-by-step explanation:

Given:  100 people are split into two groups 70 and 30.  I group is given cough syrup treatment but second group did not.

Prob for a person to be in the cough medication group = 0.70

Out of people who received medication, 34% did not have cough

Prob for a person to be in cough medication and did not have cough

=\frac{0.70(34)}{60}=0.397


Prob for a person to be not in cough medication and did not have cough

=\frac{0.3(20)}{30}=0.20

Probability for a person not to have cough

= P(M1C')+P(M2C')

where M1 = event of having medication and M2 = not having medication and C' not having cough

This is because M1 and M2 are mutually exclusive and exhaustive

SO P(C') = 0.397+0.2=0.597

Hence required prob =P(M1/C') = \frac{0.397}{0.597}=0.665

4 0
3 years ago
Read 2 more answers
if you wanted to know how fast a tiger can run which measurement would you use? A) candela, mole B) kilogram, ampere C) meter, k
Kitty [74]
Meter second would be the correct answer
4 0
3 years ago
Read 2 more answers
What is missing for the following quantity to be true? (3y*5b)*10 = __(5b*10)
labwork [276]
<span>(3y*5b)*10 = __(5b*10)

</span>15yb *10 = __(5b*10)
150yb = 3y(50b)= 150yb

Do you have any questions?

3y is the answer<span>.</span>
5 0
3 years ago
Identify the coefficients in the expression below.<br><br> -6x+5y+4x+9
Montano1993 [528]

Answer:

3 coefficients in this expression are: -2x, 5y and 9 (natural number)

Step-by-step explanation:

-6x + 5y + 4x + 9

= -6x + 4x + 5y + 9

= -2x + 5y + 9

3 coefficients in this expression are: -2x, 5y and 9 (natural number)

Hope this help you :3

5 0
3 years ago
Read 2 more answers
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