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Fantom [35]
3 years ago
14

The sum of 43.9 and a number is 49.65, as shown below. What number should go in the box to complete the addition problem? 43.9 p

lus box.75 equals 49.65
Mathematics
1 answer:
Ber [7]3 years ago
6 0
43.9 + n = 49.65
43.9-43.9 + n = 49.65 -43.9
n = 5.75
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Can someone please help me
Bad White [126]

Answer:

<h2>L.A. = 384 cm²</h2><h2>S.A. = 640 cm²</h2>

Step-by-step explanation:

Lateral Area:

We have four congruent triangles with base b = 16cm and height h = 12cm.

The formula of an area of a traingle:

A_\triangle=\dfrac{bh}{2}

Substitute:

A_\triangle=\dfrac{(16)(12)}{2}=(8)(12)=96\ cm^2

L.A.=4A_\triangle=4(96)=384\ cm^2

Surface Area:

S.A.=B+L.A.

In the base we have the square with side s = 16cm. The formula of an area of a square:

A_\square=s^2

Substitute:

B=16^2=256\ cm^2

S.A.=256\ cm^2+384\ cm^2=640\ cm^2

4 0
3 years ago
The cost of flying a passenger plane from point A to point B is ​$70 comma 00070,000. The airline flies this route four times pe
Vladimir [108]

Answer:

I. $291.67 per passenger

II. $583.33 per passenger

Step-by-step explanation:

The cost of flying the passenger plane from A to B is $70,000.

If the Capacity of the plane is 240 people.

(I)At 7A.M and 4P.M., the average cost per passenger is given as:

Average Cost=Total Cost/Number of Passengers

=70000/240=$291.67 per passenger

(II)At 10AM and 1PM, the flight is only half full, it has 120 passengers.

Average Cost = 70000/120=$583.33 per passenger

4 0
3 years ago
Read 2 more answers
Estimate 12.59 _ 7.68 to the nearest whole number​
slega [8]

Answer:

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Step-by-step explanation:

if the first number in the decimal is 5 or up then you round up if its 4 or less you round down meaning it would be 13 and 8

8 0
3 years ago
Find the length of hypotenuse of a right triangle with legs of 8 and 15
Rzqust [24]

Answer:

17

Step-by-step explanation:

(8×8) + (15×15) = 289

square root of 289 is 17

3 0
3 years ago
What is 4x+y=6 written in the quadratic formula
Zigmanuir [339]
-4 +or- the square root of 1 squared - 4*6*1 all over 2*4
6 0
4 years ago
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