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2 years ago

A rectangular sheet of paper is 12 cm long and 10 cm wide. 2 3 Find its perimeter.

Mathematics

2 answers:

jeka57 [31]2 years ago

5 0

Answer:

44 cm

Step-by-step explanation:

The paper has two sides of 12 cm = 24 cm

and two sides of 10 cm = 20 cm

total 24 + 20 = 44 cm

Aleks04 [339]2 years ago

3 0

Answer:

perimeter is 44cm

Step-by-step explanation:

We've learnt that perimeter equals the sum of all sides;

1) Make a list of your data:

Width is 10cm

Length is 12cm

2) Write the formula down and solve:

Perimeter = Length + width + length + width

P= 10+12+10+12

P=22+22

P= 44

Therefore the perimeter is 44cm

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J1, J2 and J3 are three junctions on a motorway. The distance from J2 to J3 is 8.7 miles. The distance from J1 to J2 is one-thir

leonid [27]

Answer:

11.6 miles

Step-by-step explanation:

Given that:

Distance from J2 to J3 = 8.7 miles

Distance between J1 and J2 = 1/3 of J2 toJ3

Hence, distance between J1 and J2 becomes :

1/3 * 8.7 miles = 2.9 miles

Distance from J1 to J3 equals :

(J1 to J2) + (J2 to J3)

2.9 miles + 8.7 miles

= 11.6 miles

5 0

3 years ago

Donnel practiced the piano 3 hours longer than Marcus. Together they practiced the piano for 11 hours. How many hours did each b

andriy [413]

Here is the equation: $x+(x+3)=11$ ⇒ $x+x+3=11$

You need to get "x" by itself so minus 3 from each side

$x+x+3-3=11-3$ ⇒ $x+x=8$ ⇒ $2x=8$

Divide 8 by 2

$8$ ÷ $2=4$

x=4

So each 4 is equivalent to 4

Lets check:

$4+(4+3)=11$ ⇒ $4+4+3=11$ ⇒ $11=11$

So that means that Marcus practiced the piano for 4 hours and Donnel practiced for 7

4 0

3 years ago

Use the Distributive Property to write each expression as an equivalent algebraic expression. (7 + a)3 Question 4 options: 3(7a)

AysviL [449]

Answer:

(B)21+3a

Step-by-step explanation:

An expression is said to be distributive when:

$(a+b)c=a \cdot c+b \cdot c$

Given the algebraic expression: (7 + a)3

Applying the distributive property

$(7 + a)3 = 7 \cdot 3+a \cdot 3\\=21+3a$

An equivalent expression is 21+3a.

The correct option is B

5 0

3 years ago

Tom and Martin both worked 9 hours this week and sold $360 worth of meals. Their hourly wages are $2.15 and $2.50, respectively.

serious [3.7K]

Tom and Martin worked <u>9 hours</u> this week.

These are their hourly wages:

Tom: $2.15

Martin: $2.50

This means that:

Tom earned 9 x $2.15 in wages, which is equal to $19.35.

Martin earned 9 x $2.50 in wages, which is equal to $22.50.

--------------------

Now, we've been told that Tom and Martin sold $360 worth
of meals but we were not told how much they received in tips.

For all intents and purposes, let's say that they received $n
in tips. 15% of $n in tips would be less than 20% of $n
in tips. Now, Martin is already going to be receiving a higher
wage, and the fact that he is going to be receiving 20% of
$n in tips compounds the logical conclusion that at the end
of the week, he'd be leaving work with more money than Tom.

Answer:

Martin made more money than Tom.

3 0

3 years ago

PLZ HELP ME WITH THIS

VARVARA [1.3K]

Answer:

-16s+40

Step-by-step explanation:

4 0

3 years ago

A rectangular sheet of paper is 12 cm long and 10 cm wide. 2 3 Find its perimeter.​

A rectangular sheet of paper is 12 cm long and 10 cm wide. 2 3 Find its perimeter.