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vekshin1
3 years ago
5

A toll collector on a highway receives $8 for trucks and $3 for sedans. At the end of a 2 hour period, she collected $128. How m

any trucks and sedans passed through the toll booth during that period?
Mathematics
1 answer:
Svet_ta [14]3 years ago
3 0
7 trucks & 24 sedans
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16x 2 + 8x - 15 Mathematics?
Gala2k [10]
If you're factoring, your answer is

(4x - 3)(4x + 5)

You'll work it out this way:

16x^2 + 8x - 15

Since there's no GCF here, you multiply the first and third terms, giving you -240. Your next step is to find two numbers that have a sum of 8 and a product of -240. These numbers are 20 and -12. Plug those in and you've got:

16x^2 + 20x - 12x - 15

From here you divide it into two binomials. These are (16x^2 + 20x) and (-12x - 15).
When you take out the greatest common factors (4x and -3), they become:

4x(4x + 5) - 3(4x + 5)

Then you group what's outside of the parentheses together (4x - 3)
And bring what's inside of the parentheses down (4x + 5).
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3 years ago
Hey I’m having trouble finding out how to divide fractions
solniwko [45]

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2 years ago
Part 1
Dmitrij [34]

Answer:

a)  A n  (B' n C') =  {3, 9}.

b) (AUB) n (BUC) = {2,4,5,6,7,8}

Step-by-step explanation:

a)  Rewriting C ; C = {4,5,6,7,8}

B' = {3,5,7,9} and C' = {2, 3, 9}

so (B' n C') = {3, 9}

and A n  (B' n C') =  {3, 9}.

b)  {A U B} = { 2,3,4,5,6,7,8,9} and {B U C} = {2,4,5,6,7,8}

so (AUB) n (BUC) = {2,4,5,6,7,8}

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3 years ago
Two groups of students were asked how far they lived from their school. The table below shows the distances in miles:
Finger [1]
<span>The best answer is C because 2.17 x 2=4.34

</span><span>C. Its value for group A is double the value for Group B.</span>
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3 years ago
Not sure if it’s A or b help!!!
Sphinxa [80]
The correct answer is A
4 0
3 years ago
Read 2 more answers
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