Five times the difference of a number and 8 is 45.

Answers

Answer 1

Answer: The question is requiring that you write the given word problem expression as a mathematical expression. Let the required number be x, then the difference of the number and 8 is x - 8. Then, five times the difference of a number and 8 is 5(x - 8) = 45

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A small number of cards has been lost from a complete pack. If I deal among four people, three cards remain. If I deal among three people, two remain and if I deal among five people, two cards remain. How many cards are there?

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Answer:

Step-by-step explanation:

I had to look up how many cards in a deck to answer this question XD

This proves how little I play cards

770 is greater than,less than,or equal to 7 km

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less because 770 meter is 0.77 meters

well... first of all... is it 770 cm? 770 m?770 what?

Mr warren drove from Townsville to villaville at 70 mph and back again at a speed of 50 mph. His total driving time was 12 hours. How far apart are the two towns

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Call the distance between the towns 'D' .

The time it takes to cover a distance is (distance) divided by (speed).

It takes Mr. Warren D/70 hours on the first trip,
and it takes him D/50 hours on the return.
All together, it takes him 12 hours.

D/70 + D/50   = 12 hours

Change the fractions to
a common denominator
(350) for adding: 5D / 350 + 7D / 350 = 12

Add: 12D / 350   = 12

Divide each side by 12 :    D / 350   = 1

Multiply each side by 350 : D    = 350 miles .

Check:

Going: 350mi / 70 mph = 5 hours

Coming: 350mi / 50 mph = 7 hours

Total    12 hours    yay !

Warrendrove from Townsville à Villaville at 70 miles per hour
and from Villaville to Townsville è 50 milesper hours
He drove for a total of 12 hours.
=> 70 miles + 50 miles = 120 miles
=> 12 hours
So the unit rate of his driving is 120 miles / 12 hours
=> 120 miles / 12 hours
=> 10 miles / hour
thus, he drove in total for 10 miles per hour.
And probably the 2 towns are about 60 miles away.

Kate made a box to hold her jewelry collection. She used 42 inches of wood to build the sides of the box. If the box was 9 Inches wide, how long was the box

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We can use the 9 inches wide to determine that 18 inches of the 42 inches are the wide sides. 42 - 18 = 24, so we divide 24 by how many long sides there are, 2. 24 ÷ 2 = 12. The box was 12 inches long.

Convert y − 6 = fraction 2 over 5(x + 10) to slope-intercept form.

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The slope-intercept form:

$y=mx+b$

Convert:

$y-6=(2)/(5)(x+10)\qquad\text{use distributive property}\n\ny-6=(2)/(5)x+2\cdot2\n\ny-6=(2)/(5)x+4\qquad\text{add 6 to both sides}\n\n\boxed{y=(2)/(5)x+10}$

$6.62 for 2 pounds of tomatoes

Answers

where is the question in that???????

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