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3 years ago

How do I add fractions with different denominations?

1 answer:

7 0

1.Write down the fractions.
2.Find a common denominator.
3.Multiply both numbers on the first fraction by the bottom number of the second fraction.
4.Multiply both numbers on the second fraction by the bottom number of the first fraction.
5.Line both fractions up side by side with their new numbers.
6.Add together the numerators of the two fractions.
7.Take the common denominator that you figured out in Step 2 and add it on the bottom of your new numerator.
8.Put the new numerator on top and the new denominator on bottom.
9.Simplify and reduce.

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What is the solution set of the equation 3x2 = 48 ?

nalin [4]

Answer:

Step-by-step explanation:

6=48

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3 years ago

Jenna uses 18 inches of ribbon for each box she wraps. How many yards of ribbon does she needs to wrap 4 boxes?

eduard

Answer:

Jenna needs 2 yards of ribbon to wrap 4 boxes.

Step-by-step explanation:

First, we can find how many inches of ribbon she needs.

18*4=72

She needs 72 inches of ribbon for 4 yards.

There are 36 inches in a yard.

72/36=2

Jenna needs 2 yards of ribbon to wrap 4 boxes.

6 0

3 years ago

Read 2 more answers

Answer question 8,9 and 10 with full details.

Lelechka [254]

Answer:

See Explanation

Step-by-step explanation:

8. (1)

Area of trapezoid = 1/2(sum of || sides) *perpendicular distance

36 =1/2(x+ y) * 6

36 = ((x + y)*3

36/3 = x + y

12 = x + y

x + y = 12.... (1)

8(2)

It is given that:

x = 2y....(2)

From equations (1) & (2)

2y + y = 12

3y = 12

y = 12/3

y = 4

From equation (2)

x = 2y = 2*4

x = 8

Area of square = 1 square m

Side of square = 1 m

Area of circle = 1 square m

$\pi {r}^{2} = 1 \\ {r}^{2} = \frac{1}{\pi} \\ r = \frac{1}{ \sqrt{\pi} } \\ c = 2\pi \: r \\ c = 2\pi \times \frac{1}{ \sqrt{\pi} } \\ c = 2 \sqrt{\pi} \\ c = 2 \sqrt{3.14} \\ c = 2 \times 1.77200451 \\ c = 3.54400902 \\ c = 3.544 \\ difference = 3.544 - 1 = 2.544 \\difference \approx \: 2.54$

4 0

3 years ago

HELP...here say:write five decimals that have at least 3 digits to the right of the decimal point.Write the expanded form and th

just olya [345]

27÷9=3
1+2=3
1×3=3
10-7=3
27-24=3

8 0

3 years ago

Which graph represents this equation? y = 1/2x^2 + 2x - 6

s2008m [1.1K]

Answer:

Step-by-step explanation:

y = 1/2x^2 + 2x - 6

When, x = 0, y = - 6

you don't need to find another variable. Because in number C u can find a graph that has y= -6 when x =0.

6 0

3 years ago