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Jobisdone [24]
3 years ago
10

4. Simplify the expression. -3(b – 7)

Mathematics
2 answers:
ruslelena [56]3 years ago
5 0
-3b+21

hope this helps

tamaranim1 [39]3 years ago
3 0
-3b+21. hope that helped
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im stuck on this . and somebody give me a clear right answer because people r giving me wrong answers
statuscvo [17]

Answer:

-1

Step-by-step explanation:

S = <u>y</u> = <u>8</u> = -1

x 8

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8 0
4 years ago
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Victor sold cupcakes and cookies yesterday. Each cupcake sold for $2.25 and each cookie sold for $0.50. At the end of the
lidiya [134]

answer:number of cupcakes sold is 13  Number of cookies sold is 27  

Step-by-step explanation:

Let x represent the number of cupcakes that Victor sold.  Let y represent the number of cookies that Jane sold.  Each cupcake sold for $2.25 and each cookie sold for $0.50. At the end of the day,  This mean Victor had 2.25x 0.5y = 42.75 - - - - - - - - - -1she sold 40 cupcakes and cookies combined, it means thatx y = 40Substituting x = 40 - y into equation 1, it becomes2.25(40 - y) 0.5y = 42.7590 - 2.25y 0.5y = 42.75- 2.25y 0.5y = 42.75 - 90- 1.75y = - 47.25y = - 47.35/-1.75y = 27x = 40 - yx = 40-27 = 13

3 0
3 years ago
Please help! 15 points!
Anvisha [2.4K]
Fiind out the degrees in the middle then u get the answer
5 0
3 years ago
How can we change a linear equation ( y = -9.4x+7.4 ) to a quadratic equation?​
babunello [35]

Answer:

47x+5y=37 is the answer to your question .

Step-by-step explanation:

3 0
3 years ago
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Samuel is looking at the floor plan of his house to determine how much carpet he needs to buy for his basement. Based on the flo
DerKrebs [107]

Answer:

B) First, find two areas using (4m x 10m = 40m2) and (8m x 3m = 24m2). Next, add (40m2 + 24m2 = 64m2).

Step-by-step explanation:

Samuel should is looking to find the area of his basement in order to cover it with carpet.

An area is calculated by multiplying two dimensions (so answers A and D are not it).

Best solution is to divide the area into two large rectangles then ADD them together to get the total area.

The only scenario where he could have subtracted something based on his plan is if he would have multiplied the 10m by the 12m then subtracted the area that is not part of his basement (7mx8m).  He would have achieved the same result of course, but by going a different way.

3 0
3 years ago
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