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pickupchik [31]
2 years ago
12

Explain how you would use algebra tiles to solve x - 3 = 7

Mathematics
2 answers:
Andrew [12]2 years ago
7 0

Answer:

Start by laying out 7 tiles, and then adding 3. Whatever that number of tiles is equals x.

x = 10

10 - 3 = 7

SVEN [57.7K]2 years ago
4 0
Answer: x=10
explanation: switch subtraction to addition to both sides and add 3 to both sides making it 7 + 3 witch equals 10
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A. 28 <br> B. b - 28 <br> C.b + 28<br> D.b
NISA [10]

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b - 28

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6 0
3 years ago
The value of a car reduces by 30% every 6 months. A car costs $15,000 when new. What is the value of the car after 2 years?
Allisa [31]
6 months goes into 2 years 4 times
30 x 4 = 120
120% of 15,000 is
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3 0
3 years ago
6+16k factored using the GCF
ICE Princess25 [194]
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8 0
3 years ago
Read 2 more answers
The owner of a convenience store keeps track of how many customer buy lunch food during the "noon rush" each day for four days a
alexdok [17]

Answer:

c) 62.

Step-by-step explanation:

Let x represent number of customers came in on the fifth day.

We have been given that the mean number of customers for those four days is 52. So total number of customers on 4 days would be 4 times 52 that is 208 customers.

We know that mean of a data set is equal to sum of all data points divided by number of data points.

Total number of customers on 5 days would be 208+x and total number of days is 5.

Since we need a mean of 54, so we can set mean of 5 days equal to 54 as:

\frac{208+x}{5}=54

Multiply both sides by 5:

\frac{208+x}{5}*5=54*5

208+x=270

208-208+x=270-208

x=62

Therefore, 62 customers must come in on the fifth day to make the five-day mean 54 and option 'c' is the correct choice.

4 0
3 years ago
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