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3 years ago

Solve for "y" 6.3=0.9y y=

Mathematics

1 answer:

Zolol [24]3 years ago

7 0

$6.3=0.9y \ \ / *10 \\ \\10\cdot 6.3=10\cdot 0.9y \\ \\63=9y \ \ /:9\\ \\y=\frac{63}{9}\\ \\y=7$

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200% of d is 11 what is D

olga nikolaevna [1]

If 200 percent is 11 then 100 is 11/2 which is exactly 5.5.

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3 years ago

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Simplify (8.3) 2.10.(6-1)

vagabundo [1.1K]

Answer:

$8 .3 \times 2.10.5$

Step-by-step explanation:

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Which is the graph of the function: f(x) = x2 - 4x + 3

Nina [5.8K]

Answer:

Option 1

Step-by-step explanation:

To find the graph of the quadratic function, we find it's zeros.

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

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3 years ago

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3 years ago

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gulaghasi [49]

Answer:

n ≥ 3.74

Min #of friends = 4

Step-by-step explanation:

There are some info missing. Let me say those:

Given

Cost of Headphones = $345

Grandma and Uncle will give = $45

Now let x be the donation of each friend, so x = 20, and

let y be the correct answer friends, y = 0.25

Now, let n represent the number of friends who's gonna give Benjamin $0.25.

Also, we know his Total Income must be greater than or equal to the cost for him to buy the headphone. Thus we can say:

Total Income ≥ Cost

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TOtal Income = 45 (from relatives) + 4n(20) (4n donation friends each giving 20) + 0.25n (n people giving 0.25 each).

Thus, we have:

Total Income ≥ Cost

45 + 80n + 0.25n ≥ 345

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Therefore, the minimum number of friends who must pay Benjamin $0.25 for each correct answer in order for him to meet his goal is 4.

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4 years ago