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Anna007 [38]
3 years ago
13

Explain how you can use mental math to compare 7 pounds to 120 ounces.

Mathematics
2 answers:
alexgriva [62]3 years ago
3 0
By using my brain I can figure it out.
siniylev [52]3 years ago
3 0
Well there is 16 ounces in a pound and there is 7 pounds so 120 divided by 16 is 7.5 so 120 ounces is more than 7 pounds.
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Lelu [443]
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6 0
3 years ago
In triangle ABC, the measure of angle A is 90 ° . Angle B is congruent to angle C. What is the measure of angle B in degrees?
densk [106]

Answer: 45 degrees

Step-by-step explanation:

3 0
2 years ago
The mean of 3 consecutive terms in an arithmetic sequence is 10, and the mean of their squares is 394. What is the largest of th
poizon [28]
Let the numbers be:
a, a+b, a+2b
mean of the numbers is:
(a+a+b+a+2b)/3=10
(3a+3b)/3=10
a+b=10
thus second term is 10

The sum of square will be:
((10 - b)² + 10² + (10 + b)²<span>) / 3 = 394 
</span>(100 - 20b + b² + 100 + 100 + 20b + b²<span>) / 3 = 394
</span><span>(300 + 2b</span>²<span>) / 3 = 394
</span>(150+b²)=591
b²=441
b=-21,21

thus the numbers will be:
10-21, 10, 10+21
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5 0
3 years ago
I need help to answer this please help and give me a step by step so I can understand it I may or may not have forgot 5(7p+13)
MrRissso [65]

Answer: 35p+65

Step-by-step explanation: Distribute the 5 to the 7p and 13.

5x7p=35p

5x13=65

Add these together to get 35p+65.

6 0
2 years ago
Read 2 more answers
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