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2 years ago

15

Erin bought 4 jars of jelly and 6 jars of peanut butter for $19.32. Adam bought 3 jars of jelly and 5 jars of peanut butter for

$15.67. Find the cost of a jar of peanut butter?

1 answer:

dem82 [27]2 years ago

8 0

Answer:

the jar of peanut butter is $2.36

Step-by-step explanation:

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Sin x cos x = -cos x<br> Find all angles that satisfy the equation below

n200080 [17]

Answer:

$x=90^\circ,270^\circ$

Step-by-step explanation:

$sinxcosx=-cosx$

$sinxcosx+cosx=0$

$cosx(sinx+1)=0$

$cosx=0$

$x=90,270$

$sinx+1=0$

$sinx=-1$

$x=270$

Therefore, the angles that satisfy the equation are $x=90^\circ,270^\circ$

8 0

3 years ago

Nathan went shopping for a new camera because of a sale. The store was offering a 40% discount. If the price on the tag was $35,

tia_tia [17]

Answer:

The price after the discount but before the tax is $21

Step-by-step explanation:

Here, we are told there is a price off of 40% on an item that costs $35.

What we want to calculate is the value of what the price would be before the tax

We proceed by finding 40% of $35

Mathematically, that would be;

40/100 * 35 = $14

The price of the item before the tax is thus;

35-14 = $21

4 0

3 years ago

Simplify the expression 4*4+4*x

leva [86]

Answer: The answer is 16+4x

Step-by-step explanation:

4*4 is 16 and 4*x is 4x since I can't add them together it would be 16+4x

8 0

3 years ago

What angle would you need on a pie graph for a section that represented 25% of the

stich3 [128]

Answer: C

Step-by-step explanation:

Use proportion:

360:100=x=25

100x=25*360

x=360/4

x=90

6 0

3 years ago

HAVE TO EVALUATE SHOW WORK !!!!!<br><br> 2ny + x

Ivan

Answer:

9

Step-by-step explanation:

2ny + x

Start with n and y

n= 3/4

y = 6

2*n*y = 2* 3/4 * 6 2 * 6 = 12

12 * 3/4 = 36 / 4 = 9

There are many ways to do this. I have chosen one that does not require cancellation.

7 0

3 years ago