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Alik [6]
3 years ago
15

Estimated the sum. 523+295

Mathematics
2 answers:
Ghella [55]3 years ago
5 0
The answer is 820 (520+300)
BartSMP [9]3 years ago
3 0
The estimated sum is 800 because 523 can be rounded to 500 and 295 can be rounded to 300 and 500+300=800.
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Ok so Ive been having trouble with Math can anyone help??
Illusion [34]
For the first bit, put $930 + 7.5x and the second part is 58,000, 930 x 7.5 x 8
6 0
3 years ago
Which number is closest to - 102 (square root)?<br> A. -11.5<br> B. -10.0<br> C. -9.7<br> D. -11.1
andre [41]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
Read 2 more answers
George and Paul use a metal alloy that is 18.1% copper to make jewelry. How many ounces of an alloy that is 14% copper must be m
ella [17]

Answer:

Use 49 ounces of the 14% allow and 41 ounces of the 23% alloy.

Step-by-step explanation:

Each ounce of the 14% copper contains 0.14 ounce of pure copper.

Each ounce of the 23% copper contains 0.23 ounce of pure copper.

Each ounce of the 18.1% copper contains 0.181 ounce of pure copper.

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x+y  = 90

y = 90-x

0.14x + 0.23y = 0.181·90

0.14x + 0.23(90-x) = 16.29

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4.41 = 0.09x

x = 49

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Use 49 ounces of the 14% allow and 41 ounces of the 23% alloy.

7 0
2 years ago
1+1? i'm just doing this to set up my acc lol
charle [14.2K]
2 ;) was this helpful? mark me as the best!
8 0
3 years ago
Read 2 more answers
Paul has a number of counters two less than seven
valentinak56 [21]
The answer is 5 cause two less then 7 is 5.

4 0
3 years ago
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