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Deffense [45]
4 years ago
6

How to subtract positive and negative numbers

Mathematics
1 answer:
Sophie [7]4 years ago
8 0

Answer:

1-4=-3

Step-by-step explanation:

1-4

=-(4-1)

=-3

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A person is trying to quit chewing gum. They decide they will have 64 pieces in week 1, but each week has half as many as the we
Svet_ta [14]

Answer:

8 weeks

Step-by-step explanation:

week 1=64

week2=32

week3=16

week4=8

week5=4

week6=2

week7=1

week8=.5=0

5 0
3 years ago
Read 2 more answers
Barbara charges $3.50, plus $2.25 for each hour she babysits. If Barbara charges $21.50, how many hours does she babysit?
MAVERICK [17]

Answer:

8 hours

Step-by-step explanation:

The equation is 2.25X + 3.50 = 21.50

X represents the unknown amount of hours she worked. 2.25 is the cost per hour. 3.50 is the fee she charges for every gig. That fee only happens once a gig so naturally it wasn't the number x was placed with.

2.25X + 3.50 = 21.50

2.25X + 3.50 - 3.50 = 21.50 - 3.50

2.25X = 18

<u>2.25X</u> = <u>1</u><u>8</u>

2.25 2.25

X = 8

8 0
3 years ago
Please help me with number 8 please!!
forsale [732]
The answer to number eight is
That it would have to reflect in the middle and it has Proportional angles.
7 0
2 years ago
Given: -3(2x + 7) = -29 – 4x; Prove: x = 4
sergey [27]

Answer:

See steps below

Step-by-step explanation:

-3(2x+7)=-29-4x

Use the distributive property

-6x-21=-29-4x

Add 21 to each side

-6x=-8-4x

Add 4x to both sides

-2x=-8

Divide by -2

x=4

8 0
3 years ago
Twelve large bottles of water cost $9. a. How many bottles can you buy for $3?
Neko [114]
You can buy 4 bottles
7 0
3 years ago
Read 2 more answers
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