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4 years ago

{8x [1+(20-6)]}÷ 1/2=

1 answer:

7 0

You would do 20-6 which = 14. + 1 =15. times 8= 120 then divide that by 1/2 = 240 if you do 120 divided by .5 in a calculator thats what you get. i hope that helps you

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Use proportional reasoning to solve for the missing value in each of the following scenarios. Enter a numerical answer only.A bu

yuradex [85]

Q1. A business jet burns 300 gallons of gasoline per hour. How many gallons of gasoline will the jet burn in a three hour flight?

Let the number of gallons required in 3 hours be = x

$\frac{x}{3}=\frac{300}{1}$

$x=900$ gallons.

Answer: The business jet burns 900 gallons of gasoline in a three hour flight.

Q2. On average, one gallon of gasoline weights approximately six pounds. How many pounds does fifty gallons of gasoline weigh?

Let the weight in pounds of 50 gallons be = x

$\frac{1}{6}=\frac{50}{x}$

$x=300$ pounds

Answer: Fifty gallons of gasoline weighs 300 pounds.

Q3. For every one yard, there are thirty-six inches. Convert 2,124 inches to an equivalent number of yards.

Let the number of yards be = x

$\frac{1}{36}=\frac{x}{2124}$

$36x=2124$

$x=\frac{2124}{36}=59$ yards

Answer: 2,124 inches = 59 yards

Q4. A person who weighs 240 pounds burns 180 calories per mile of running. If a person burns thirty-six calories by running one mile, how much does the person weigh?

Let the weight of the person be = x

$\frac{240}{180}=\frac{x}{36}$

$180x=240\times36$

$180x=8640$

$x=48$ pounds

Answer: A person who weighs 48 pounds, burns thirty-six calories while running one mile.

Q5. A rice casserole recipe serves four people and requires two tablespoons of butter. How many people will the rice casserole serve if the recipe is scaled to require six tablespoons of butter?

Let the number of people who can be served be = x

$\frac{4}{2}=\frac{x}{6}$

$2x=24$

$x=12$

Answer: A rice casserole that requires six tablespoons of butter serves 12 people.

5 0

3 years ago

The Carr School Band purchases pizza and drinks for their end-of-year celebration. Each pizza costs $10 and each drink costs $2.

Advocard [28]

Answer:

4n + 100 = C

7n = C

by elimination 7n - 4n - 100 = 0

3n = 100

n = 100/3 (33.33)

*need to sell 34 pizzas

n= number of pizzas

c= cost

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

The area of a square floor on a scale drawing is 100 sq cm, and the scale of the drawing is 1cm:2ft. What is the area of the act

likoan [24]

Square root of 100 = 10 cm. Next, 10*2 = 20^2 = 400 ft. Next, convert cm into ft, which would make 100 into about 3.3 ft. The ratio would then be about 3/400. Does that help?

7 0

4 years ago

What is an imaginary number?

trapecia [35]

An imaginary number is a complex number that can be written as a real number multiplied by the imaginary unit i, which is defined by it's property i² = −1. The square of an imaginary number bi is −b². For example, 5i is an imaginary number, and it's square is −25.

8 0

3 years ago

Brainliest to first correct Answer!

zhannawk [14.2K]

First you need to find the slope, which is (y2-y1)/(x2-x1)
Plug the points in as (1-4)/(-1-1) -> -3/-2
The slope is 3/2, or 1.5
Point slope form is y-y1 = m(x-x1)
Plug in the slope (m) and the first point
y-4 = 1.5(x-1) <-- That's point slope form
To get standard form (ax+by=c), you can use point slope form

y - 4 = 1.5(x - 1)
y - 4 = 1.5x - 1.5
y = 1.5x + 2.5
-1.5x + y = 2.5 <-- Standard Form

4 0

4 years ago