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Ahat [919]
3 years ago
15

PLEASE HELP ME!!!!!!!!!!!

Mathematics
1 answer:
mariarad [96]3 years ago
3 0
From the first 2 statements again , x + 8 = y.

area of the hole would be 4x  cm^2
area of sheet without hole is 9y cm^2

9y - 4x =76   ------------- eqn one

y = x + 8 ----------------eqn two

subs eqn two into one and u got it 

btw what questions are these :o

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Hayley and Tyler are on the cross-country team. Tyler can run 1 mile (at a
ANTONII [103]

The person who ran farther is Hayley.

<h3>Who ran farther?</h3>

Average speed is the total distance travelled per time.

Average speed = total distance / total time

Tyler's average speed =  1 / 8.30 seconds = 0.12 miles per minute

The distance covered by Tyler in 10 minutes = 0.12 x 10 = 1.2 miles

Distance covered by Hayley in 10 minutes : 10 = 8x

x = 10 / 8 = 1.25 miles

To learn more about average speed, please check: brainly.com/question/21734785

#SPJ1

7 0
2 years ago
PLEASE HELP I NEED THIS I AM GIVING LOTS OF POINTS!!!!!!!!!!! How many 1/3 inch cubes does it take to fill a box with width 2 2/
maria [59]
<h3>Answer:  560</h3>

===================================================

Work Shown:

Let's find out how many smaller cubes are needed to go along the 2 & 2/3 inch side length of the bigger box.

First convert to an improper fraction

2 & 2/3 = 2 + 2/3 = 6/3 + 2/3 = 8/3

Divide this over the side length of the small cube to get

8/3 divided by 1/3 = (8/3)*(3/1) = 24/3 = 8

So we need exactly 8 small cubes along the 2 & 2/3 inch side length.

Let A = 8 so we can use this later.

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

Repeat the same steps for the 3 & 1/3 inch side length

3 & 1/3 = 3 + 1/3 = 9/3 + 1/3 = 10/3

10/3 divided by 1/3 = (10/3)*(3/1) = 30/3 = 10

We need 10 cubes along the 3 & 1/3 inch side length.

Let B = 10.

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

Repeat for the 2 & 1/3 inch side length

2 & 1/3 = 2 + 1/3 = 6 + 1/3 = 7/3

7/3 divided by 1/3 = (7/3)*(3/1) = 21/3 = 7

We need 7 cubes along the 2 & 1/3 inch side length

Let C = 7

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

Multiply out the values of A,B,C to get

A*B*C = 8*10*7 = 560

This means we need 560 cubes that are each 1/3 of an inch along the the side to fill up a box that has dimensions of 2 & 2/3 inches by 3 & 1/3 inches by 2 & 1/3 inches.

5 0
3 years ago
What is 28/40 in simplest form?
Artemon [7]
7/10 is the answer.....

8 0
3 years ago
Read 2 more answers
The probability that a certain make of car will need repairs in the first eight months is 0.6. A dealer sells three such cars. W
irina [24]

Answer:

There is a 1.8% chance that one of the cars will need a repair in the first month.

Step-by-step explanation:

It’s actually very simple, as we just have to multiply the 0.6% by 3, considering that there are three cars, and we then get the answer; 1.8%.

Hope This Helped!

5 0
3 years ago
(-7) • (-5) what does it equal to
stepan [7]

Answer:

35

Step-by-step explanation:

  1. Negative × negative = Positive
  2. -7 × -5 = 35

I hope this helps!

5 0
3 years ago
Read 2 more answers
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