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balu736 [363]
3 years ago
13

What is 5x5 - 16 x 30?

Mathematics
2 answers:
Juli2301 [7.4K]3 years ago
5 0

Answer:

-455

Step-by-step explanation:

Remember PEMDAS. Order of Operations. First, group (5x5) - (16x30). Then do the multiplication in each set of parenthesis. You will get 25-480. Then subtract to get -455.

blsea [12.9K]3 years ago
3 0

Answer:

the answer is 270

Step-by-step explanation:

...........

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The left and right page numbers of an open book are two consecutive integers whose sum is 385. Find these page numbers.
Alona [7]
Consecutive integers are integers that follow one another. For example, 2,3,4,5,etc.... are consecutive integers

So algebraically, consecutive integers follow the form x, x+1, x+2, etc...

Since the sum of two consecutive integers is 239, this means:

x%2Bx%2B1=239

2x%2B1=239 Combine like terms on the left side

2x=239-1Subtract 1 from both sides

2x=238 Combine like terms on the right side

x=%28238%29%2F%282%29 Divide both sides by 2 to isolate x

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So our first number is x=119

So to find the next number, simply add 1 to it to get 119%2B1=120

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3 years ago
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4 0
3 years ago
Solve using the elimination method. 5r-2s=21 & 2r+5s=20
cestrela7 [59]
I hope this is correct. I solved it using the addition elimination method. The answer is s= 2, and r= 5. I hope that was helpful.
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Answer:

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Step-by-step explanation:

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4 0
2 years ago
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