All categories

3 years ago

Would someone help me understand this type of math

Mathematics

1 answer:

Svetlanka [38]3 years ago

6 0

I never understand that

You might be interested in

Please help me I'm almost done

sukhopar [10]

Answer:

$\mathsf {SA = 112 in.^{2} }$

Step-by-step explanation:

$\textsf {Formula used :}\\\implies \textsf {SA = 2(length * width + width * height + length * height) }$

$\textsf {Given :}\\\textsf {Length = 5 in.}\\\textsf {Width = 4 in.}\\\textsf {Height = 4 in.}$

$\textsf {Solving :}$

$\implies \mathsf {SA = 2 (5 * 4 + 4 * 4 + 5 * 4)}$

$\implies \mathsf {SA = 2 (20 + 16 + 20)}$

$\implies \mathsf {SA = 2 (56)}$

$\implies \mathsf {SA = 112 in.^{2} }$

5 0

2 years ago

Nicole is playing a video game where each round lasts 3/44 of an hour. She has scheduled 3 3/4 hours to play the game. How many

Marrrta [24]

Let's not think about the problem, let's think about the fractions and dividing. We're are trying to find how many sets of 3/44 are in 3 3/4. We need to divide. Using keep change and flip, we can divide successfully.
Let's make sure the first fraction is improper.
15/4÷3/44=?
Keep, Change, and Flip.
15/4×44/3
660/12
Let's simplify.
55.
So Nicole can play 55 rounds.

7 0

3 years ago

Jaimie said that one million less than 26 470 035 000 was 26 370 035 000. Kristin said that 0.008 was less than one thousandth.

Novosadov [1.4K]

Jaimie was wrong, because 26,470,035,000-one million(1,000,000) = 2.646904e10
And Kristin was right because 0.008<1,000 is a true statement.

3 0

3 years ago

A shop sells a party hat at x dollars and a mask at y dollars. On a particular morning, 3 hats and 4 masks were sold for $27. In

Aleks [24]

Answer:

Cost of each hat: $5

Cost of each mask: $3

Step-by-step explanation:

Let be "x" the cost in dollars of a party hat and "y" the cost in dollars of a mask.

Set up a System of equations using the information given in the exercise:

$\left \{ {{3x+4y=27} \atop {3x+6y=33}} \right.$

You can use the Elimination Method to solve this System of equations:

1. You can multiply the first equation by -1.

2. Then you must add the equations.

3. Solve for "y".

Then:

$\left \{ {{-3x-4y=-27} \atop {3x+6y=33}} \right.\\.....................\\2y=6\\\\y=\frac{6}{2}\\\\y=3$

4. Now you can substitute the value of "y" into any original equation.

5. Finally, solve for "x" in order to find its value.

Then:

$3x+4(3)=27\\\\3x=27-12\\\\x=\frac{15}{3}\\\\x=5$

5 0

4 years ago

For every dollar increase in the price of music CDs sold by a record label, the demand for the CDs drops by 100. However, 4,000

JulsSmile [24]

I think its D, I'm probably wrong.

6 0

4 years ago