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myrzilka [38]
3 years ago
9

Can you help me please?

Mathematics
1 answer:
AnnZ [28]3 years ago
3 0
So the original equation is 3a+a+b=54.6 which is 4a+b=54.6 and so you get the equation:

4(8.7)+b=54.6
34.8+b=54.6

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I'll give u brianliest if you share the answer and how you got it
Bogdan [553]

Answer:a is 52    b is 65

Step-by-step explanation:

a:Write 65% as 65100.

65100 of 80 = 65100 × 80.

Therefore, the answer is 52. If you are using a calculator, simply enter 65÷100×80 which will give you 52 as the answer.

b: it is 65 because it is the same question but in reverse which still gives you the same answer.

Hope this helps

please give brainlyist

6 0
3 years ago
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In a class 32 students, 4students we're homesick with the flu on Thursday. what percentage of the students were absent on Thursd
Fynjy0 [20]

Answer:

12.5%

Step-by-step explanation:

4 * 100 / 32 = 12.5

6 0
2 years ago
Quinn is flying a kite. The angle of elevation formed by the kite string and the ground is 40°, and the kite string forms a stra
emmasim [6.3K]

The distance between the ground and the kite to the nearest foot is 64 ft.

<h3>What is a right angle triangle?</h3>

A right angle triangle is a triangle that has one of its sides as 90 degrees. The situation forms a right angle triangle.

Hence,

The length of the kite string is the hypotenuse side of the triangle formed.

The height between the ground and the kite is the opposite side of the triangle formed.

Therefore, using trigonometric ratio,

sin 40 = opposite / hypotenuse

sin 40 = h / 100

cross multiply

h = 100 sin 40

h = 100 × 0.64278760968

h = 64.2787609687

h = 64 ft

Therefore, the distance between the ground and the kite to the nearest foot is 64 ft.

learn more on right triangle here: brainly.com/question/27482803

#SPJ1

7 0
2 years ago
A sample of 64 observations is selected from a normal population. The sample mean is 215, and the population standard deviation
faltersainse [42]

Answer:

15 million

Step-by-step explanation:

7 0
3 years ago
[Grade 7 set 1]
Veseljchak [2.6K]

Step-by-step explanation:

No it would because you have to find the number for why and the two is the power so no it not going to be.

4 0
3 years ago
Read 2 more answers
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