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Ber [7]
2 years ago
12

Jessica's age plus Mike's age is 20. Mike is 4 years younger than Jessica. How old is Mike?

Mathematics
2 answers:
patriot [66]2 years ago
8 0

Answer:

mike is 8 and Jessica is 12 (12+8= 20)

Step-by-step explanation:

if jessica is 12 then 4 years younger would make mike 8

plus 8 plus 12 is 20

sergiy2304 [10]2 years ago
4 0

Answer:

5

Step-by-step explanation:

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attashe74 [19]

-a²-3b³+c²+2b³-c²

= -(3)² - (3×2)³ + (-3)² + (2 × 2)³ - ( -3)²

= 9 - 24 + 9 + 16 - 9

= 1

answer is 1.


5 0
2 years ago
GOOD MORNING! \(:0:)/
Elza [17]

Answer:

Good morning.

Step-by-step explanation:

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8 0
2 years ago
Read 2 more answers
The sum of three numbers is 120 the first number is five less than the second the third number is three times the second what ar
VladimirAG [237]

Answer:

1st number: 20

2nd number: 25

3rd number: 75

Step-by-step explanation:

x + y + z = 120

x = y - 5

z = 3y

plug that in!

(y-5) + y + (3y) = 120

remove the parenthesis (I used them to show you what I was replacing), and add like terms.

5y - 5 = 120

move -5 to the other side

5y = 120 + 5

5y = 125

divide both sides by 5

y = 25

now that you have one number, use the equations from before to solve for the rest!

x = (25) - 5

z = 3(25)

_____________________________________________________

x = 20

y = 25

z = 75

4 0
3 years ago
Kevin is 3 times as old as Daniel. 4 years ago, Kevin was 5 times as old as Daniel. How old is kevin now?
puteri [66]
K = Kevin's age
D = Daniel's age

K = 3D

K - 4 = 5(D - 4)

Plug in 3D for the K values in the second equation.

3D - 4 = 5(D - 4)   Use the Distributive Property
3D - 4 = 5D - 20   Add 4 to both sides
     3D = 5D - 16     Subtract 5D from both sides
    -2D = -16            Divide both sides by -2
       D = 8 
 Now, plug that D value into the original equation.

K = 3D    Plug in the D value
K = 3(8)   Multiply
K = 24

Finally, you can double check your math.

4 years ago, Daniel would've been 4 and Kevin would be 20, so Kevin would've been 5 times as old as Daniel.  And 8 x 3 = 24.

So, Kevin is 24.
3 0
3 years ago
Read 2 more answers
Which expression is equivalent to (265x^16)^1/4?
inn [45]

Answer:

265x/8

I have no idea if this is correct, sorry if it isn't.

6 0
3 years ago
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