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2 years ago

Question 3 "Try Again." Mary needs 3 feet of boondoggle for a craft project.

Mathematics

1 answer:

kati45 [8]2 years ago

7 0

Answer:

$9.00

Step-by-step explanation:

We can use conversion factors to solve this equation. The multiplication sequence that I got is shown below:

$\frac{3ft}{1}$ × $\frac{12 in}{1ft}$ × $\frac{0.25}{1in}$

Our feet and inches cancel out and we get the final expression $\frac{3*12*0.25}{1}$ , which is equal to 9, or $9.00.

Hopefully that was helpful! :)

You might be interested in

Given h(x) = -5x – 1, solve for x when h(x) = -6.

andrey2020 [161]

Answer:

h(x) = 1

Step-by-step explanation:

h(x) = both of these equations, but really only -6. Plug in 1 to x in the equation and it will equal -6.

Hope this helps

5 0

3 years ago

Olivia has a points card for a movie theater. She receives 25 rewards points just for signing up. She earns 7.5 points for each

miv72 [106K]

Answer:

0 visits

Step-by-step explanation:

According to the scenario, calculation of the given data are as follows,

Rewards for signing up = 80 points

Reward per visit = 2.5 points

Total points needed = 105

Let, number of visits = x

So, we can calculate number of visits by using following formula,

80 + (2.5 × X) = 105

2.5X = 105 - 80

2.5X = 25

X = 25 ÷ 2.5

X = 10 visits.

Hence, Olivia needs to make 10 visits in order to earn a free movie ticket

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Flying to Kimpala with a tail wind a plane averaged 158km/hr. On the return trip the plane only average 112km/hr. While flying b

lora16 [44]

The speed of wind and speed of plane in still air are 23 and 135 km/h respectively.

<u>Step-by-step explanation:</u>

Let the speed of wind and speed of plane in still air are w and p km/h respectively.

The effective speed on onward journey was

$p+w=158$ ................(1)

The effective speed on return journey was

$p-w=112$ ..............(2)

Adding equation (1) and equation (2) we get,

⇒ $(p+w)+(p-w) = 158+112$

⇒ $2p = 270$

⇒ $p = 135$

Putting value of $p = 135$ in $p+w=158$ we get:

⇒ $p+w=158$

⇒ $135+w=158$

⇒ $w=23$

Therefore ,The speed of wind and speed of plane in still air are 23 and 135 km/h respectively.

3 0

2 years ago

The combined area of a pair of congruent rectangles can be represented, in square units, by the expression 18y^2-818y 2 −8. The

sveta [45]

Answer:

$Perimeter = 12y$

Step-by-step explanation:

Given

$Area = 18y^2 - 8$ -- two rectangles

Required

Determine the perimeter of one of the rectangles

First, calculate the area (A) of 1 rectangle

$A =\frac{1}{2}Area$

$A =\frac{1}{2}(18y^2 - 8)$

$A =9y^2 - 4$

Express as difference of two squares

$A =(3y - 2)(3y+2)$

Area is calculated as:

$A = Length * Width$

So, by comparison:

$Length = 3y - 2$

$Width = 3y + 2$

The perimeter is:

$Perimeter = 2 *(Length + Width)$

$Perimeter = 2 *(3y-2+3y+2)$

Collect Like Terms

$Perimeter = 2 *(3y+3y-2+2)$

$Perimeter = 2 *(6y)$

$Perimeter = 12y$

8 0

2 years ago

The population of a town is 58,000 and is growing by 23% per year. If the trend continues, what will the population be in 8 year

mina [271]

The population in 8 yrs would be 164,720

6 0

3 years ago