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3 years ago

Independent Practice

Mathematics

1 answer:

Eva8 [605]3 years ago

6 0

Answer:

B. 57°F

Step-by-step explanation:

Given:

F = n/4 + 37

Where,

F = temperature in degrees Fahrenheit

n = number of times per minute crickets chirps

Find F when n = 80

F = n/4 + 37

F = 80/4 + 37

= 20 + 37

= 57

F = 57 °F

B. 57 °F

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Which value represents a percentage between 12% and 19%?

Natali [406]

Answer:

15.5%

Step-by-step explanation:

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2 years ago

1. John’s age is three times that of his sister. When you add John’s age to his sister's age, you get 36. How old are John and h

iren [92.7K]

Answer:

sister = 6 years

John=18 years

Step-by-step explanation:

A(S) + 12 = 3 * A(S), subtracting A(S) from both sides one gets 12 = 2 * A(S). Now dividing both sides by 2 we get A(S) = 12/2 = 6 . Therefore, the age of the sister is 6 years when her brother John is three times as old, that is 18 years.

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3 years ago

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when 200 apples are sold at Rs 1.50 each there will be rupees hundred loss how many apples should be sold for rupees 150 to gain

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Answer:

Step-by-step explanation:

Sales price of 200 apples = 300

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3 years ago

In the table below, x represents the miles traveled and y represents the cost to travel by train.

Fudgin [204]

Answer:

2.25

Step-by-step explanation:

to find slope it is (y2-y1)/(x2-x1)

(15.25-8.50)/(5-2)

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3 years ago

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2. The following formula relates three quantities: Force (F), mass (m), and acceleration (a).

castortr0y [4]

Let

F--------> represent the force

m--------> represent the mass

a-------> represent the acceleration

we know that

The formula that relates three quantities: Force (F), mass (m), and acceleration (a) is equal to

$F=ma$

Part a) Solve this equation for a

$F=ma$

Divide both sides by the mass

$a=\frac{F}{m}$

therefore

the answer part a) is equal to

$a=\frac{F}{m}$

Part b) Let the force be 25 units and the mass be m = 10 units. What is the acceleration, a?

we know that

the formula of acceleration is equal to

$a=\frac{F}{m}$

in this problem

we have

$F=25\\m=10$

Substitute the values n the formula

$a=\frac{25}{10}$

$a=2.5$

therefore

the answer part b( is equal to

$a=2.5$

Part c) Let the force be F = 25 units and the acceleration be a = 5 units. What is the mass, m?

we know that

$F=ma$

Solve for m

Divide both sides by the acceleration

$m=\frac{F}{a}$

in this problem

we have

$F=25\\a=5$

Substitute the values n the formula

$m=\frac{25}{5}$

$m=5$

therefore

the answer Part c) is

$m=5$

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3 years ago

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