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lara [203]
2 years ago
9

Anna has 15% less money than John

Mathematics
1 answer:
Korolek [52]2 years ago
4 0

Answer:

Step-by-step explanation:

hold on how much does john have?

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How do you convert 15 feet to centimeters?
hram777 [196]
To convert 15 ft to centimeters you have to multiply 15 x 30.48, since 1 ft is 30.48 cms

So, if you want to calculate how many centimeters are 15 feet you can use this simple rule.

3 0
4 years ago
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A rectangular solid with a square base has a volume of 5832 cubic inches. (Let x represent the length of the sides of the square
Aleks04 [339]

Answer:

a) 18 in x 18 in x 18 in

b) S = 1944\ in2

Step-by-step explanation:

a) Let's call 's' the side of the square base and 'h' the height of the solid.

The surface area is given by the equation:

S = 2s^2 + 4sh

The volume of the solid is given by the equation:

V = s^2h = 5832

From the volume equation, we have that:

h = 5832/s^2

Then, using this value of h in the surface area equation, we have:

S = 2s^2 + 4s(5832/s^2)

S = 2s^2 + 23328/s

To find the side length that gives the minimum surface area, we can find where the derivative of S in relation to s is zero:

dS/ds = 4s - 23328/s^2 = 0

4s = 23328/s^2

4s^3 = 23328

s^3 = 23328/4 = 5832

s = 18\ inches

The height of the solid is:

h = 5832/(18)^2 = 18\ inches

b) The minimum surface area is:

S = 2(18)^2 + 4(18)(18)

S = 1944\ in2

8 0
3 years ago
A line with a slope of -2 passes thru the point (4,7)
Tpy6a [65]

Answer:

y - 7 = -2(x - 4)

Step-by-step explanation:

We are asked to write the equation of a line in point slope form

Step 1 : find slope

We are given the slope to be -2

Slope m = -2

Step 2: substitute m into point slope form

y - y_1 = m( x - x_1)

y - y_1 = -2 ( x - x _1)

Step 3: substitute the point into the equation

y - y_1 = -2( x - x _1)

( 4 , 7)

x_1 = 4

y_1 = 7

y - 7 = -2( x - 4)

We don't need to open the bracket because we are asked to write the equation in a point slope form

6 0
3 years ago
John is planning his trip using a map with a scale that is 1cm:40km. According to the map his destination is 3.8 cm from the cit
ahrayia [7]

Answer:

He should get gas before leaves because if 1cm=40km       3.8=150km

Step-by-step explanation:


8 0
4 years ago
Jared Kushner.......
mel-nik [20]

Answer:

huh?

Step-by-step explanation:

^,÷&&÷&#^÷^#*#;#^#&

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