The surface area of the composite shape is 1560 square inches
<u>Step-by-step explanation:</u>
The surface area of the top cardboard is,
SA = 5 x area of each side
Because one side is attached with another cardboard box . So while finding the area only 5 sides are calculated.
SA = 5 ( 10 x 10)
= 500 square inches
The surface area of the rectangular prism cardboard,
Given that,
l = 20 in
w =15 in
h = 8 in
A = 2(lw + wh + hl) - 100
We are subtracting 100 because it is the area of one side of the square cardboard box on top of the rectangular prism box .
A = 2(300 + 120 + 160) - 100
= 2(580) - 100
= 1160-100
= 1060 square inches
Total surface area = SA + A
= 500 + 1060
= 1560 square inches
Answer:
k = 27/5
Step-by-step explanation:
Divide 5 on bot sides
5k/5 = 27/5
k= 27/5
so, k = 27/5 OR 5.4
Well, we do not know how many fish Rita has, so lets represent that with y. Anyway, it says that catherine has twice as many fish as Rita. So that will be 2y. And Stella has twice as many as catherine, so that will be 2 x 2y. And that will be 4y. So Ruth has y, catherine has 2y and stella has 4y. And the total is 70. So that means that the number of fishes added together will be 70. That can be represented as;
y + 2y + 4y = 70
y is the same as 1y. And when you add y + 2y + 4y, you will get 7y. So
7y=70
Divide the both sides by 7. That will be;
y= 7 . So Rita has 7 fishes. Hope i helped.
Answer: 36 people
Step-by-step explanation:
1. The number of people that aspire to become doctor is:
360 people*0.65=234 people
2. The number of people that aspire to become police is:
360 people*0.05=18 people
3. The number of people that aspire to become pilot is:
360 people*0.2=72
4. The sum of people that do not aspire to become entrepreneurs is:
234 people+18 people+72 people=324 people
5. Therefore, the number of people that aspire to become entrepreneurs is:
360 people-324 people=36 people
Answer:
Step-by-step explanation:
common ratio is -3
10-3=7
7-3=4
4-3=1
etc
