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Elena L [17]
4 years ago
15

Mrs. Blalock gave her students a math test. Each problem on the test was worth 4.5 points. The grade on the test, y, can be calc

ulated using the equation y = 4.5x, where x represents the number of problems a student answers correctly. What grade would a student receive on the test if they answered 16 problems correctly?
Mathematics
2 answers:
umka2103 [35]4 years ago
7 0

Answer:

4,5*16=y

y=72

Step-by-step explanation:

Step2247 [10]4 years ago
7 0

Answer:

........

Step-by-step explanation:

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Answer:

3

Step-by-step explanation:

This one has a similar concept to the other one solved here.  brainly.com/question/24796120

Basically we follow the piece wise function.

Explanation of piece wise function

         _

        |  -x + 7,        x ≤ 1

f(x) = |  x³ - 5,       -1 < x < 2

        |  3 ,             x ≥ 2

         _

When x in f(x) is less than or equal to 1 than f(x) = -x + 7

When x in f(x) is greater than -1 but less than 2 than f(x) = x³ - 5

When x in f(x) is greater than or equal to 2 than f(x) = 3

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Now lets look back at the question

We want to find f(5,000,000,000,000,000)

Looking at the piece wise function we see that the x in f(x) (5,000,000,000,000,000) follows x ≥ 2 as 5,000,000,000,000,000 is greater than 2. When x is greater than or equal to 2, f(x) = 3, hence f(5,000,000,000,000,000) = 3

8 0
3 years ago
A washer and dryer cost a total of $1194. The cost of the washer is two times the cost of the dryer. Find the cost of each item.
trasher [3.6K]

Answer:

$398 and $796

Step-by-step explanation:

w = cost of the washer

d = cost of the dryer

w + d = $1194

w = 2d

Substitute the w into the first equation.

2d + d = $1194

3d = $1194

d = $398

Substitute d into either equation.

w=2(398)

w=$796

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3 years ago
Need help confused about what they mean
ladessa [460]
My mom is a math teacher I will ask her and hope fully she will answer if not sorry...
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3 years ago
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Answer:

The first one is 360.

The second one is 1080.

Step-by-step explanation:

I got it right.

4 0
3 years ago
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Answer:

B on e2020/edge

Step-by-step explanation:

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