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3 years ago

Easy Percent Change Problem

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

6 0

Answer:

Step-by-step explanation:

t(100-75)/100=2

t(25/100)=2

t=200/25

t=8 hours

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What is 1/6 + 1/4 + 1/3

IgorC [24]

The answer is 9/12

Brainliest pls

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4 years ago

Read 2 more answers

Simplify the sum.<br> (4u3 + 4u2 + 2) + (6u3 – 2u + 8)

WARRIOR [948]

Answer: 10u3 + 4u2 - 2u + 10

Step-by-step explanation:

( 4u3 + 4u2 + 2) + ( 6u3 - 2u + 8)

opening the bracket

4u3 + 4u2 + 2 + 6u3 - 2u + 8

collecting like terms

4u3 + 6u3 + 4u2 - 2u + 2 + 8

10u3 + 4u2 - 2u + 10

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3 years ago

Increase £101 by 16% give ur answer rounded to 2 dp

Dvinal [7]

Answer:

117.16

Step-by-step explanation:

Multiply 101 by .16 and then you add it to 101.

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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

I dont understand hope someone can help

drek231 [11]

Answer:

1/4+m=2/3

It's too short. Write at least 20 characters to explain it well.

3 0

3 years ago