What do we know about these angles? Immediately, you might notice that (4y-8)° and (16x-4)° share a line. The same is true of (16x-4)° and (14x+4)°. Any straight line forms what's called a <em>straight angle</em>, which measures 180°, so we know that, since they add up to form a straight angle, (14x+4)° and (16x-4)° must add up to 180°. We can use that fact to set up an equation to solve for x:
(14x+4)+(16x-4)=180
After you solve for x, you should look to solve for y. How can we figure out what y is? If you're familiar with the vertical angle theorem, you'll know that all vertical angles (angles that are directly across from each other diagonally) are equal. So we know that 14x+4=4y-8. You can use the value of x you solved for before to solve this one fairly easily, and then you'll have both values.
Answer:
Cost of pencil is $0.35 and cost of pen is 0.75
Step-by-step explanation:
The cost of one pencil and one pen is required.
The cost of a pencil is $0.35 and a pen is $0.75.
The number of pens is 12.
The number of pencils is 20.
Let the cost of one pencil be
A pen costs $0.40 dollar more than pen.
So, cost of a pen is
Total cost of all the pens and pencils is $16.
Cost of pencil is $0.35 and cost of pen is 0.75
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Answer:
12 presents
Step-by-step explanation:
4/6= 2/3
2/3 x 18 = 12
You’re answer could be either the first or last one
