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AfilCa [17]
3 years ago
8

HELP ASAP !!!!!!!! PLEASE

Mathematics
1 answer:
umka21 [38]3 years ago
7 0

Answer:

15

Step-by-step explanation:

Using the formula:

P = 2 (a+b)
where P is the perimeter, b is base and a is side lengths

Solving for a:

a = \frac{P}{2} - b

a = \frac{70}{2}-20

a =15

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Joe is the oldest of three brothers whose ages are consecutive even integers. Three times age of the Middle brother is 12 less t
ohaa [14]

Answer:

The age of Age of Joe is 14 years .

Step-by-step explanation:

Given as :

The statement is

Three times age of the Middle brother is 12 less than twice the sum of the ages of Joe and the youngest brother .

As The age of brothers are consecutive even integers

Let The Age of oldest brother Joe = 2 x + 4

Let The Age of middle brother  = 2 x + 2

Let The Age of younger brother  = 2 x

<u>Now, According to statement</u>

3 × (2 x + 2) = 2 × [ (2 x + 4) + (2 x) ] - 12

Or, 3 × 2 x + 3 × 2 = 2 × (2 x + 4) + 2 × (2 x) - 12

Or, 6 x + 6 = 2 × 2 x + 2 × 4 + 4 x - 12

Or, 6 x + 6 = 4 x + 8 + 4 x - 12

Or, 6 x + 6 = 8 x - 4

Or, 8 x - 6 x = 6 + 4

Or, 2 x = 10

∴    x = \dfrac{10}{2}

i.e  x = 5

So, The age of Age of oldest brother Joe = 2 x + 4 = 2 × 5 + 4 = 14 years

The Age of middle brother = 2 x + 2 = 2 × 5 + 2 = 12 years

The Age of younger brother  = 2 x = 2 × 5 = 10 years

Hence, The age of Age of Joe is 14 years . Answer

5 0
4 years ago
Name the place wich each number was rounded 2.607 to 2.61
Jlenok [28]

Answer: Hundredths place

3 0
4 years ago
The length of a rectangle is 4m longer than its width.
FromTheMoon [43]

Call the length a, the width b

Perimeter = (a+b) x 2

We have : a - b = 4 and (a+b) x 2 = 56

-> a + b = 28
-> a - b = 4

=> a+b + (a-b) = 32
2a = 32
a = 16
b = 56:2-16 = 12

So, the length = 16 and the width = 12

8 0
3 years ago
The Math Club had a car wash to raise money for a competition. The members charged $10 for each car they washed. What is the ind
Fudgin [204]

Answer:

The dependent variable for this case is the amount of money charged and the independent variable would be the number of cars washed.

And the reason why is because the dependnet variable is the variable of interest (money earned) and the independent the variable that controls the amount of money earned

Step-by-step explanation:

From the info given by the problem we know that the Math Club had a car wash to raise money for a competition. The members charged $10 for each car they washed.

The dependent variable for this case is the amount of money charged and the independent variable would be the number of cars washed.

And the reason why is because the dependnet variable is the variable of interest (money earned) and the independent the variable that controls the amount of money earned

8 0
3 years ago
No links please need help
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He literally or she sorry by the way but they said clearly no links they should kick people with that
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