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Drupady [299]
2 years ago
13

4(10b-4) Explain please

Mathematics
2 answers:
katovenus [111]2 years ago
5 0

Answer:

40b - 16

Step-by-step explanation:

4 (10b - 4)

= (4*10b) - (4*4) [distributive property]

= 40b - 16

Hope it helps ⚜

Angelina_Jolie [31]2 years ago
4 0
<h3>Answer:   40b - 16</h3>

Work Shown:

4(10b-4)

4*10b - 4*4

40b - 16

I multiplied the outer term 4 by each term inside. Refer to the distribution property (aka distributive property).

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2x + y = -4<br> 2x + 3y = 4
kirill115 [55]

Answer: x=4 ; y=<u> -4</u>

                            3

Step-by-step explanation:

2x + y = -4 .(-3)

2x + 3y = 4

-6x-3y=12

<u>2x + 3y = 4</u>

4x=16

x= <u>16</u>

    4

x=4

2x + 3y = 4

2.4+3y=4

8+3y=4

3y= -8+4

y=<u> -4</u>

   3

7 0
3 years ago
How many solutions would it have none infinite or one ?
Jlenok [28]

Answer:

c

Step-by-step explanation:

c

8 0
2 years ago
Read 2 more answers
N-6+4=24 solve for n
zubka84 [21]
N= 26
hope this helped !!
8 0
3 years ago
Read 2 more answers
14. The Wilson family has twice as many tomato plants as squash plants. If there are 15 plants in the garden,
WARRIOR [948]

Answer:

5 Squash, 10 Tomatoes

Step-by-step explanation:

10 is double 5 :/

7 0
3 years ago
Read 2 more answers
To reduce laboratory​ costs, water samples from five public swimming pools are combined for one test for the presence of bacteri
aleksklad [387]

Answer:

Step-by-step explanation:

Given that:

The numbers of the possible public swimming pools are 5

From past results, we have 0.007 probability of finding bacteria in a public swimming area.

In the public swimming pool, the probability of not finding bacteria = 1 - 0.007

= 0.993

Thus;

Probability of combined   =  Probability that at least one public

sample with bacteria           swimming area have bacteria

Probability of combined sample with bacteria  = 1 - P(none out of 5 has          

                                                                                bacteria)

   

Probability of combined sample with bacteria = 1 - (0.993)⁵        

= 1 - 0.9655

= 0.0345

Thus, the probability that the combined sample from five public swimming areas will show the presence of bacteria is 0.0345

From above, the probability that the combined sample shows the presence of bacteria is 0.0345 which is lesser than 0.05.

Thus, we can conclude that;  Yes, the probability is low enough that there is a need for further testing.

6 0
3 years ago
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