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liberstina [14]
1 year ago
12

I tried to do it and I don’t understand??

Mathematics
1 answer:
vlada-n [284]1 year ago
3 0

Answer:

Perimeter = 46.6 m

Area = 78.36 m²

Step-by-step explanation:

Perimeter is just the outsides, so add 3.7 + 12.3 + 4.5 +11 AND the sides you aren't given. To find them, you do 11-3.7 = 7.3 and 12.3-4.5 = 7.8. So you add 3.7 + 12.3 + 4.5 + 11 + 7.3 + 7.8 = 46.6

Area is the inside, so you multiply length by width. You can split it different ways, but I multiplied by 3.7*12.3 first, giving 45.51. Now to find the area of the other box, you need to subtract 11 by 3.7, which we saw was 7.3. Now we can multiply 7.3 by 4.5, which is 32.85. Then you add 45.51 and 32.85 to get 78.36.

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How do you do this question??????
Temka [501]
 c is correct.
(Pe)²/(De)³=(Pj)²/(Dj)³ (Pe stands for period of Earth, De for Distance of Earth from Sun, 
Because Dj=5.2De
(Pe)²/(De)³=(Pj)²/(5.2De)³
Pj=√(5.2³)(Pe)²=(5.2³)(1)² ≈11.9 =(note: Pe=1 earth year)
5 0
3 years ago
Please help solve this system y=3x+15 and y =5x+9
Harrizon [31]

Answer:

(3, 24)

Step-by-step explanation:

5 0
3 years ago
The time, t, it takes a runner to cover a specified distance is inversely proportional to the runner's speed. If Jann Avery runs
Sveta_85 [38]

To solve this problem you will need this tool, it is the formula of speed :

<em>speed = distance/time</em>

(I suggest you to remember this one for life, it is a really useful one)

Let's check how long that Jackie nice dude will take to finish the race...

Jann avery runs at an average of 6 mph (miles per hour), so we already got the speed for our formula. And she will finish the race in 2.1 hours so we got the time. What do we miss ? The distance.

Let's write what we already know to solve this puzzle :

6 = d / 2.1

Where d is that unknown distance..  So we are in front of an equation here let's solve it :

d / 2.1 = 6

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Now that we know that distance, for the race, we can see if that poor Jackie Donofrio has all his chances to catch Jann Avery...

We already know his speed... and since we have the distance, we write :

4 = 12.6 / t

Where t is the unknown time, for Jackie, to finish the same race. Let's solve the equation :

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Good Luck

5 0
2 years ago
What is the perimeter of the triangle?​
yulyashka [42]

i am edditing my post because i got the answer wrong

6 0
2 years ago
Jeremiah always rides his bike to and from work. The total
Katen [24]

From the computation done, the total kilometers that he uses last month will be 262.8 kilometers.

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Therefore, the kilometers that he rode his bike to and from work last month will be;

= 14.6 × 18.

= 262.8 kilometers.

Learn more about equations on:

brainly.com/question/13763238

7 0
2 years ago
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