HELP ME OUT IM stoopid, I GIVE BRAINLIEST AND POINTS SUPER EASY

Mathematics

1 answer:

Alex17521 [72]4 years ago

4 0

Answer:

Well I figure you would use a ratio. we are given one when comparing 240 lbs to 180 calories for each mile:

240lbs/180calories = 1 mile

we.are.given another when saying a person. burns 36 calories in 1 mile. we don't know weight so we will say x lbs:

x/36calories = 1 mile

since they both equal 1 mile we know they are equal:

240/180 = 1 = x /36

we can get rid of the 1 in between and say:

240/180 = x/36

let's reduce first fraction

8/6 = x/36

cross multiply:

8*36 = 6x

divide both sides by 6

8*6 = x

x = 48

Step-by-step explanation:

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francos dad is three times his age. in 10 years, francos dad will be twice francos age plus 2. How old are franco and his dad no

konstantin123 [22]

Let

Y be the age of Franco's dad.
X Franco's age

Y = 3*X (1)
(Y +10) = 2*(X+10) +2 (2)

(3*X +10) = 2*X +20 +2

(3-2)X = 22 -10

X = 12 years old (Franco)

Y = 3*12 = 36 years old (Franco's dad)

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3 years ago

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the length of a rectangle is 5 inches more then the width. the area of the rectangle is equal to 2 inches more than 4 times the

Svet_ta [14]

P = 2(L + W)
L = W + 5
A = 4P + 2

P = 2(W + 5 + W)
P = 2(2W + 5)
P = 4W + 10

A = 4P + 2
A = 4(4W + 10) + 2
A = 16W + 42

A = L * W
A = W(W + 5)
A = W^2 + 5W

W^2 + 5W = 16W + 42
W^2 + 5W - 16W - 42 = 0
W^2 - 11W - 42 = 0
(W + 3)(W - 14) = 0

W - 14 = 0
W = 14 <==

L = W + 5
L = 14 + 5
L = 19 <==

P = 2(19 + 14)
P = 2(33)
P = 66

A = L * W
A = 19 * 14
A = 266

answer : length = 19, width = 14....perimeter = 66....area = 266

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3 years ago

How do you solve 2/5 (c+8.5) =18

Orlov [11]

Solve for c by simplifying both sides of the equation, then isolating the variable.

C=36.5

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3 years ago

How do i solve this problem

mamaluj [8]

As they are similar corresponding sides are in the same ratio, so

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3 years ago