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Svet_ta [14]
3 years ago
10

Melanie finds paint at the store for $4.95 per gallon. She also finds a Paintbrush for $3.75. Write an equation for y, the total

cost, for x gallons of paint and 1 paintbrush. Question 3 options: y = 4.95x + 3.75 y = 3.75x + 4.95 y = 8.7x y = 1.2x
Mathematics
2 answers:
storchak [24]3 years ago
7 0

Answer:

y = 4.95x + 3.75

Step-by-step explanation:

I have taken this test, I also go to K12. I have for 4 years and I have been on brainly for 3 so welcome to the K12 Brainly party.

WINSTONCH [101]3 years ago
5 0

Answer:

y = 4.95x + 3.75

Step-by-step explanation:

i have been with k12 for 2 years and brainley for 4 months

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4 years ago
Molybdenum rods are produced by a production line setup. It is desirable to check whether the process is in control, i.e. equal
ikadub [295]

Answer: Test statistic = -8 and rejected region is  (-∞,-1.966) and (1.966, ∞)

Step-by-step explanation:

Since we have given that

X is the length of a rod.

Sample Mean = 2 inches

Standard deviation = 0.5 inches

n = 400

Hypothesis are

H_0:\mu=2.2\\\\H_1:\mu\neq 2.2

Test statistics would be

t=\dfrac{\bar{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}}\\\\t=\dfrac{2-2.2}{\dfrac{0.5}{\sqrt{400}}}\\\\t=-8

Degrees of freedom = n-1 =400-1 =39

and \alpha =0.05\\\\\dfrac{\alpha }{2}=\dfrac{0.05}{2}=0.025

Using the t-distribution table, we get that critical value z = 1.966

Since the two tail test will be applied to this,

So, the acceptance region will be (-1.966, 1.966)

Hence, the rejected region will be (-∞,-1.966) and (1.966, ∞)

5 0
3 years ago
Chloe has a small dog and a large dog. Each day, the small dog eats 3/4 cup of dog food, and the large dog 2 1/2 cups of dog foo
svet-max [94.6K]

Answer:

A

Step-by-step explanation:

small dog eats 3/4 cup each day

large dog eats 1 cup each day

~after 1 week (x7)~

small dog = 5.25 cups

large dog = 7 cups

(7-5.25=1.75)

= therefore 1 and 3/4 cups

6 0
3 years ago
Read 2 more answers
What's the expanded notation for 876,543,210.25?
Sunny_sXe [5.5K]
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7 0
3 years ago
Read 2 more answers
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