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4 years ago

What is one half plus four ninths

2 answers:

6 0

1
+
9

4

Since these fractions have different denominators, we need to find the least common multiple of the denominators
The least common multiple of 2 and 9 is 18, so we need to multiply to make each of the denominators = 18
2

1
∗
9

9
=
18

9

9

4
∗
2

2
=
18

8

Since these fractions have the same denominator, we can just add the numerators
18

9
+
18

8
=
18

17

Bas_tet [7]4 years ago

4 0

Answer:

17/18

Step-by-step explanation:

1/2 + 4/9

9/18 + 8/18 (need common denominators to add)

17/18

cannot simply because 17 is prime

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The perimeter of a rectangular carpet is 34 feet. The length of the carpet is one foot shorter than twice the width a) Write and

zysi [14]

Answer:

a.) 3x = 18 (where x = width)

b.) Area = 66 squared feet

Step-by-step explanation:

2{x + (2x-1)} = 34

3x - 1 = 17

x = 6 feet

length = 11 feet

Area = x (2x -1)

4 0

3 years ago

Combine like terms.<br> By – 4z + 3y + 5z = 11y + [? ]z

Sliva [168]

Answer:

11y + 1z

Step-by-step explanation:

Like terms are ones that have the same variable (or set of variables).

8y - 4z + 3y + 5z

= (8 +3)y +(-4 +5)z

= 11y +1z

Usually written as 11y+z.

7 0

4 years ago

Which expression is equivalent to

taurus [48]

Answer:

Step-by-step explanation:

7 0

3 years ago

Please help me on this one.

EleoNora [17]

3(j+4)-9=9
3j + 12 -9 =9
3j +3 =9
3j =6
j=2

7 0

3 years ago

Read 2 more answers

In trapezoid ABCD with bases AB and DC , diagonals intersect at point O. Find the length of diagonal BD , if BO=6 cm and: AO/OC

aalyn [17]

Answer:

8 cm

Step-by-step explanation:

... BO/OD = AO/OC = 3/1

Written another way, this is ...

... OD : BO = 1 : 3

Now, BD = OD + BO, so we have

... BD : BO = (OD +BO) : BO = (1 +3) : 3 = 4 : 3

That is, BD = 4/3 × BO

... BD = 4/3 × 6 cm = 8 cm

6 0

3 years ago