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yKpoI14uk [10]
3 years ago
6

10 points

Mathematics
1 answer:
Sophie [7]3 years ago
4 0

it is d I'm pretty sure. if not, a

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Toni simplified the expression , 22 × (16 −32 +1) ÷ 8. For Toni's first and second steps, he simplified the expression inside th
Anna007 [38]
When you subtract and add what is in the parentheses you would get -15 so I’m guessing he didn’t go from left to right when working inside the parentheses but when you solve the whole problem out you would get the answer: -41.25 If I missed something or you need me to show the work just let me know but I hope this helps !
6 0
3 years ago
Simplify the given expression. Assume that no variable equal 0.
marissa [1.9K]

Answer:

The answer I think is correct is B

Step-by-step explanation:

I hope that's corrected?

5 0
2 years ago
The sum of liz's and melinda's ages is 28. if liz was 1/3 melinda's age 6 years ago, how old will liz be next year?
Mrrafil [7]
The first thing we must do for this case is to define variables:
 We have then:
 x: liz's age
 y: melinda's age
 We now write the system of equations:
 x + y = 28

x-6 = (1/3) (y-6)
 By solving the system graphically we have that the age of each one is currently:
 x = 10

 y = 18
 Next year, the age of liz is:
 x + 1 = 10 + 1 = 11

 Answer:
 
Next year, Liz's age is 11 years.
 
Note: see attached image for the graphic solution.

3 0
3 years ago
Solve the equation for the given variable. justify each step.
s344n2d4d5 [400]

Answer: y=\frac{5-9x}{2}

s=-30+10t

Step-by-step explanation:

9x + 2y = 5; y

9x-9x+2y = 5-9x

2y=5-9x

y=\frac{5-9x}{2}

1/15s - 2/3t = -2; s

(1/15s - 2/3t = -2)*15     ==> Get rid of fraction by multiplying both sides by 15

s - 30/3 t=-30

s-10t=-30

s=-30+10t

5 0
2 years ago
Every 4 inches in the blueprint represents 7 feet of the actual buildings One of the walls on the blueprint measures 21 inches i
tatiyna

Answer: The answer should be 36.75 inches.


Step-by-step explanation:


21 inches divided by 4 inches = 5.25

Multiply 5.25 by 7, which equals 36.75


5 0
3 years ago
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