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lora16 [44]
3 years ago
8

write an equation: 1) the sum of an integer and the next consecutive integer is 37. what is the integer? 2) the product of a who

le number and the next consecutive whole number is 30. what is the number? 3) the total value, in cents, of d=dimes and five times as many nickels, is 105 cents. how many dimes and nickels are there? 4) the width of a rectangle is w, and its length is 5cm less than its width. the perimeter of the rectangle is 66cm. what is the rectangles width? length?
Mathematics
1 answer:
gayaneshka [121]3 years ago
5 0
Ok, so the question is asking for equations so I won't solve them

consecutive integers are 1 apart


1. (n)+(n+1)=37, integer is 18
2. n(n+1)=30, integer is 5
3. 10d+5(5d)=105, 3 dimes and 15 nickles
4. 66=2(w+w-5), w=19, l=14
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That's very interesting.  I had never thought about it before.
Let's look through all of the ten possible digits in that place,
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-- 0:
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-- 1:
    A number greater than 10 with a 1 in the units place could be
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-- 2:
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-- 3:
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-- 4: 
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-- 5:
   A number greater than 10 with a 5 in the units place is a multiple
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-- 6:
   A number greater than 10 with a 6 in the units place is an even
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-- 7:
   A number greater than 10 with a 7 in the units place could be
   a prime (17, 37 etc.) but it doesn't have to be (27, 57) .

-- 8:
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-- 9:
   A number greater than 10 with a 9 in the units place could be
   a prime (19, 29 etc.) but it doesn't have to be (39, 69) .

So a number greater than 10 that IS a prime number COULD have
any of the digits  1,  3,  7,  or  9  in its units place.

It CAN't have a  0,  2,  4,  5,  6,  or  8 .

The only choice that includes all of the possibilities is  'A' .

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