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labwork [276]
3 years ago
7

Jenna bought n notebooks which cost 5 dollars each, and 3 pens which cost r dollars each. How much money did she spend?

Mathematics
2 answers:
netineya [11]3 years ago
7 0
Is there choices to this? because there is not enough information to answer this

Makovka662 [10]3 years ago
3 0

Solution:

we are given that

Jenna bought n notebooks which cost 5 dollars each, and 3 pens which cost r dollars each.

we have been asked to find the

How much money did she spend?

Money spend one kind of item can be found by multiplying the item price by item number.

So Money Spend on Notebook=5n

Money Spend on Pens=3r

So Total Money spend by adding these two values together.

Hence Total Money Spend=5n+3r

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Twice the complement of angles A is 40 less than the supplement of angle A. Find the measure of angle A
Serggg [28]
Complement adds to 90
complement of A is 90-A


supplement is adds to 180
supplemetn of A is 180-A

2(90-A) is -40+180-A

2(90-A)=-40+180-A
2(90-A)=140-A
distribute
180-2A=140-A
add 2A to both sides
180=140+A
minus 140 both sides
40=A

A=40 degres
4 0
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ale4655 [162]

Answer:

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