A store sells 6 bananas for $4. Determine how much it would cost to buy 15 bananas

Mathematics

2 answers:

Archy [21]3 years ago

8 0

Answer:

$10

Step-by-step explanation:

Since 6 cost four dollars 3 would cost 2 dollars multiply 3 to get 15 bananas and 2 to get $10

Galina-37 [17]3 years ago

5 0

Answer:

$10

Step-by-step explanation:

Make proportion:

?= cost of bananas

6 - 4

15 - ?

?= 15×4÷6=10

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Which of the following are trigonometric identities ? Check all that apply. Tan^2 x -

snow_tiger [21]

I hope you are looking for these answer choices as you have not posted the choices. Therefore, I have a similar question with these answer choices.

a). tan² x - 1 = sec²x
b). 4 cosxsinx = 2cos + 1 -2sinx
c). tanx cosx cscx = 1
d). 1- tanx tany = cos(x+y) ÷ cosx cosy

Options B, C, D are correct because, for all them, left-hand side equals to the right-hand side for x = 0.

The option A)
tan² x - 1 = sec²x is not true.
since x = 0
Therefore,
The Right hand side would be:
tan² x - 1 = sec²(0)
= 1
The Left hand side would be:
 tan² x - 1 = tan² (0) - 1
= 0 - 1
= -2
Therefore,
Both sides are not equal so it's not a trigonometric identity.

3 0

3 years ago

What is the answer to this question 3x+1=10

Angelina_Jolie [31]

Step-by-step explanation:

$3x+1=10 \\ \\ \therefore \: 3x = 10 - 1 \\ \\ \therefore \: 3x = 9 \\ \\ \therefore \: x = \frac{9}{3} \\ \\ \: \: \: \: \: \: \: \: \huge \purple { \boxed{\therefore \: x = 3}} \\ \\$