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suter [353]
3 years ago
10

Three less than two times a number is 5. What is the number? equation: n =

Mathematics
1 answer:
amm18123 years ago
7 0
1/2n -3 = 5
1/2n = 8
n = 4

Hope I helped :)
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A rectangular park is 50 meters wide and 90 meters long. Give the length and width of another rectangular park that has the same
larisa [96]

Answer:

l = 100\,m and w = 40\,m

Step-by-step explanation:

The formulas for the area and perimeter of a rectangle are, respectively:

A = w\cdot l

p = 2\cdot (w + l)

The perimeter is equal to:

p = 2\cdot (50\,m + 90\,m)

p = 280\,m

Area is likewise equal to:

A = (50\,m)\cdot (90\,m)

A = 4500\,m^{2}

Then, equations are now described:

A = w \cdot l

140\,m = w + l

Likewise, the equation of area is simplified afterwards:

A = (140\,m - l)\cdot l

A = 140\cdot l - l^{2}

The area is reduced inasmuch as length is increased. Let assume that length is 100 meters. The length and width are described herein:

l = 100\,m and w = 40\,m

7 0
3 years ago
The number of miles driven varies directly with the number of gallons of gas used. If 8 gallons of gas are used to drive 204 mil
Alik [6]

Answer:

3672

Step-by-step explanation:

If  8 gallons of gas were used to drive 204 miles  multiply  18x204=3,672 miles

8 0
3 years ago
Multiplication using the distributive property practice Hannah homework lesson 25 chapter tonight P 91 question number two in th
melamori03 [73]

Solve out the actual multiplication problem: 18 x 5 = 90

So you can see that the final answer is 9 tens.

hope that helps :)

5 0
3 years ago
Tania believes that if she increases the price of an item (mark up) by 10% and then decrease it (mark down) by 10%,she will have
dezoksy [38]
She is incorrect as 10% of the higher marked up price is larger than 10% of the original price.

For example: If you mark up $100 by 10% you get $110.

If you mark down $110 by 10%, you will get $99, as 10% of $110 ($11) is larger than 10% of $100 ($10).
5 0
3 years ago
I need the answers please help
Andrej [43]

Answer:

For the first one: 2+3(1) = 5

Second one: 5=5

Third one: 1 = -2 + 3

Last one: 1=1

Step-by-step explanation:

4 0
3 years ago
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