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denpristay [2]
3 years ago
6

Can someone smart help me with this question plz :)

Mathematics
1 answer:
Gnesinka [82]3 years ago
3 0

Answer:

The answer is 41,49, 90

Step-by-step explanation:

I just did the work

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I have no idea how to solve this. Help would me much appreciated.
Otrada [13]

Answer:

Adam is 9 years old.

Step-by-step explanation:

Let d and c represent Adam's and Alicia's ages.

d = c - 15, and

c + 6 = 2(d + 6)

Rearrange d = c - 15 as c = d + 15, and then substitute d + 15 for c in the second equation.  We obtain:

d + 15 + 6 = 2(d + 6), or

d + 21 = 2d + 12

Combining like terms, we get 21 = d + 12, or 9 = d.

If d = 9 then c = d + 15, or c = 9 + 15, or c = 24.

Adam is 9 years old.

7 0
4 years ago
What is the slope of the line that passes through the points (5, -11) and (-9, 17)?
Liono4ka [1.6K]

Answer:

The slope is: A. -2

Step-by-step explanation:

Given points: (5, -11), (-9, 17)

Use the equation for slope:

m = y - y1 / x - x1

m = -11 - 17 / 5 - (-9)

m = -28 / 14

m = -2

Hope this helps! Have an Awesome Day!!  :-)

3 0
3 years ago
Large cheese pizzas cost 5$ each and large 1 toping pizzas cost 6$ each. Write an equation that represents the total cost, T of
Tasya [4]

Answer:

T = 5C + 6D

Step-by-step explanation:

5 0
3 years ago
The measures of the angles of the triangle solve for x
maksim [4K]

Answer:

x = 8

Step-by-step explanation:

if the angle is equal to 36º that means (3x+12)º = 36º so simplify the equation and solve for x

3x+12 = 36

3x = 24

x = 8

4 0
3 years ago
Read 2 more answers
135pounds 5 months later 120 pounds find percent decrease
Nataly [62]
135 ----- 100%
120 ----- x
------------------------
x = 120*100/135 = 88,8

100-88,8 = 11,2 % 

the decrease percent was 11,2 %

hope helped 
5 0
3 years ago
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