MATHEMATICS HIGH SCHOOL

CAN SOMEONE PLS HELP WITH THIS!!

Answers

Answer 1

Answer:

Answer:

4/5

Step-by-step explanation:

{(2/5) / (1/2)} ×1

= (2/5)÷(1/2)

= 2/5×2/1

= 4/5

Answer 2

Answer:

Answer:

4/5

Step-by-step explanation:

Because if it can eat 2/5's in 1/2 hours, then if it eats for 1 whole hour or 2/2's it will be able to eat 4/5's of it's own body weight.

Just imagine that one half hour is 1 and if you add two half hours together it makes one complete hour or 2/2. So just multiply it by 2 cause it was eating for two half hours.

$(2)/(5) * 1=2/5\n(2)/(5) *2=4/5$

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(x³-9x)/(x²-2x-3) is equal to

Answers

Answer:

Step-by-step explanation:

What do a rectangle and a rhombus have in common? Select all that apply.The opposite sides are parallel.
They have four right angles.
Their angle measures add to 360°.
They have four congruent sides.

Answers

The opposite sides are parallel.
Their angle measures add to 360°

A printer printed 68 letters in 4 seconds. If it prints letters at a constant speed, it can print ______ letters in 30 seconds.

Answers

510 letters. 68/4=17 which means 17 letters per second. You are trying to find out how many letters you can do in 30 seconds, so you just simply multiply 17 by 30 to get 510 letters. Hope this helped!

The answer is 510, Im glad I can help! Enjoy the test!

Which of these numbers below are exactly divisible by nine 107, 513, 944, 126, 802

Answers

513 and 126. You have to divide 9 by all the numbers, if the number is even then it is divisible.

The length of a rectangle is 5 centimeters less than twice its width. The perimeter of the rectangle is 80 cm. What are the dimensions of the rectangle?length = 25 cm; width = 15 cm
length = 22 cm; width = 18 cm
length = 24 cm; width = 16 cm
length = 23 cm; width = 14 cm

Answers

Answer:

Length = 25 cm , Width = 15 cm.

Step-by-step explanation:

Given : The length of a rectangle is 5 centimeters less than twice its width. The perimeter of the rectangle is 80 cm.

To find : What are the dimensions of the rectangle.

Solution : We have given

Perimeter = 80 cm .

According to question :

Let width of rectangle = W .

Length is twice its width.

L = 2W .

Length of a rectangle is 5 centimeters less than twice its width.

L = 2W - 5.

Then ,

Perimeter = 2 ( length + width).

Plug the values

80 = 2 ( 2W - 5 + W ) .

80 = 2( 3W -5) .

On dividing both sides by 2

40 = 3W - 5 .

On adding both sides by 5.

45 = 3 W .

On dividing both sides by 3.

W = 15 cm .

L = 2W - 5.

L = 2 ( 15) - 5 .

L = 30 -5 .

L = 25 cm .

Therefore, Length = 25 cm , Width = 15 cm.

Hello,

Answer A
Let's the width of the rectangle

2a-5 its length
Teh half perimeter is 80/2=40
a+2a-5=40 ==>3a=45==>a=15 and 2a-5=30-5=25

Yesterday, Jed's bank account balance was –$26.34. He deposited some money into his account so that the balance is now $42.18. How much did he deposit into his account?

A.
$15.84

B.
$16.84

C.
$68.42

D.
$68.52

Answers

It's D $68.52 due to the act that 42.18 + 26.34= $68.52

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