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Gemiola [76]
3 years ago
15

Estimate the sum 13/30 + 2/15 and use the benchmarks 0, ,1/2,1

Mathematics
1 answer:
Inessa [10]3 years ago
7 0
13/30 is closest to 1/2
2/15 is closest to 0

estimate : 1/2 + 0 = 1/2 (or 0.5)

actual answer : 13/30 + 2/15 = 13/30 + 4/30 = 17/30 = 0.57
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A triangular bookshelf has a base of 10 inches, 12 inches, and 18 inches. Will the bookshelf fit in the corner of a square livin
Delicious77 [7]

Answer:

Not possible

Step-by-step explanation:

Since the triangular base has not a right-angled form. That is, the longest side is greater than value of hypotenuse, meaning that triangular base has a form of a obtuse-angle triangle.

  1. 10² + 12² = 18²        It is not possible because they dont equal
  2. 100+ 144= 324
  3. 244≠ 324
5 0
4 years ago
I need help ASAP please
natta225 [31]

Answer:

2j+j =21

Step-by-step explanation:

if j is Jas

Henry is 2 × Jas; which is 2j

so

j = Jas

2j = Henry

Henry + Jas = 21

input values for Jas and Henry

2j + j = 21

3 0
3 years ago
$56 they are 25% off wants to know what is the discount price
iVinArrow [24]

Answer:

$42

Step-by-step explanation:

This is an example of a percentage decrease.

To work out the percentage decrease you would first need to convert the percentage of 25% into a decimal. You can do this by dividing the percentage  of 25 by 100, this gives you 0.25. This is because percentages are out of 100.

The next step is to minus 0.25 from 1, this gives you 0.75. This is because we are working out the percentage decrease.

To work out the discounted price you would multiply the amount of $56 by 0.75, this gives you $42.

1) Divide 25 by 100.

25/100=0.25

2) Minus 0.25 from 1.

1-0.25=0.75

3) Multiply $56 by 0.75.

56*0.75=42

7 0
3 years ago
An integer is represented by x. a rational number is represented by the square root of x
kodGreya [7K]

Answer:

Step-by-step explanation:

84/18<√x<√42

42/9<√x<√41

1764/81<x<41

21.777...<x<41

but x is an integer

22≤x≤40

or x∈[22,40]

or x=22,23,24,...,40

3 0
4 years ago
Find the x-intercept and
stepan [7]
X intercept (5,0)
Y intercept (0, 2)

Hope that helps

4 0
3 years ago
Read 2 more answers
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