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Leto [7]
3 years ago
9

The directions for mixing an insect spray say to use 2 7/8 ounces of chemical in each gallon of water. How many ounces of chemic

al should be mixed with 3 2/3 gallons of​ water? First, estimate the answer to the application problem. Then find the exact answer.
Mathematics
1 answer:
otez555 [7]3 years ago
7 0
Estimate : 
2 7/8 ounces ≈ 3 ounces
3 2/3 ounces ≈ 4 ounces 

1 gallon needs about 3 ounces of chemical
4 gallons needs about 3 x 4 = 12 ounces of chemical

------

Actual:

1 gallon = 2 7/8 ounces of chemical
3 2/3 gallon = 2 7/8 x 3 2/3 ounces of chemical.
[Assuming you can use the calculator to compute]
3 2/3 gallon = 10 13/24 ounces of chemical.
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What is the equation of this parabola?
nataly862011 [7]

Answer:

y = - x² + 4

Step-by-step explanation:

The equation of a parabola whose vertex is on the y- axis is

y = ax² + c

where a is a multiplier and c is the y- intercept

• If a > 0 then minimum vertex

• If a < 0 then maximum vertex

Here vertex is a max, thus a = - 1 and c = 4

Then equation of parabola is

y = - x² + 4

3 0
3 years ago
What is the result when the number 50 is increased by 6%? Round your answer to the nearest tenth.
Readme [11.4K]

Answer:

53

Step-by-step explanation:

So all you have to do is multiply 1.06 * 50 = 53

3 0
4 years ago
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Do you know how to do this question
Sever21 [200]

Percentage of the area shaded = 55%

Solution:

Perimeter of the square = 40 cm

Each side of the square = \frac{40}{4} = 10 cm

Area of the square = \text{side}^2

                               = 10²

                               = 100

Total area of the square = 100 cm²

The unshaded portion is two triangles.

Base of the smaller triangle = 10 cm – 7 cm = 3 cm

Height of the smaller triangle = 10 cm

Area of the smaller triangle = \frac{1}{2}\times \text{base}\times \text{height}

                                              $=\frac{1}{2}\times 3\times 10

Area of the smaller triangle = 15 cm²

Base of the larger triangle = 10 cm – 4 cm = 6 cm

Height of the larger triangle = 10 cm

Area of the larger triangle = \frac{1}{2}\times \text{base}\times \text{height}

                                              $=\frac{1}{2}\times 6\times 10

Area of the larger triangle = 30 cm²

Area of the shaded portion = Area of the square – Area of the smaller

                                                   triangle – Area of the larger triangle

                                              = 100 cm² – 15 cm² – 30 cm²

Area of the shaded portion = 55 cm²

Percentage of the area shaded = \frac{\text{Area of the shaded portion}}{\text{Total area of the square}}\times100\%

                                                    $=\frac{55}{100}\times100\%

Percentage of the area shaded = 55%

8 0
4 years ago
During ski season,the owner of ski shop has determined that the number of customers in a day is greater then or equal to 50 more
Scilla [17]

The question is incomplete. Here is the complete question:

During ski season,the owner of ski shop has determined that the number of customers in a day is greater than or equal to 50 more then the temperature(Fahrenheit) . Write an inequality for the problem and determine the constraints on the variables.

Answer:

N\geq T+50

Step-by-step explanation:

Let the number of customers be 'N' and the temperature in Fahrenheit be 'T'.

Given:

Number of customers is related to temperature in Fahrenheit as:

Number of customers is greater than or equal to 50 more than the temperature in Fahrenheit. This means,

N\geq T+50

Now, since 'N' represents number of customers and number can never be a negative quantity. So, the only constraint for this inequality is that the number of customers must be greater than or equal to 0.

So, N\geq 0

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4 years ago
The inverse of F(x) is a function.<br> F(X)
Kay [80]
I’m pretty sure it’s true. :)
8 0
3 years ago
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