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4 years ago

6 1/9+3 1/3 = i will give brainlist !!!!!!

Mathematics

1 answer:

Lisa [10]4 years ago

8 0

9 4/9

1. convert 3 1/3 to have a denominator of 9

2. 3 1/3 x 3/3 = 3 3/9

3. 6 1/9 + 3 3/9 = 9 4/9

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The square of a certain negative number is equal to five more than one-half of that number. What is the number?

Mamont248 [21]

Answer:

-2

Step-by-step explanation:

x^2 = 5 + (1/2)x

x^2 - 0.5x - 5 = 0

x = 5/2

x = -2

6 0

2 years ago

Help.........?plsplsplpslp

k0ka [10]

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4 years ago

Comparing and ordering fractions for 9/10, 5/6 and 14/15

nadya68 [22]

Answer:

Step-by-step explanation:

LCM (10,6,15)=30

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4 years ago

17) A marble paperweight shaped like a pyramid weighs 0.15 lbs. How much does a similarly shaped

erica [24]

Answer:

The weight of the larger marble paperweight is 4.05 lb

Step-by-step explanation:

we know that

If two solids are similar, then the ratio of its weights (or volumes) is equal to the scale factor elevated to the cube

Remember that the scale factor is the ratio between corresponding sides

Let

z ------> the scale factor

x -----> the weight of the larger marble paperweight

y -----> the weight of the original marble paperweight

$z^{3} =\frac{x}{y}$

In this problem we have

$z=3$

$y=0.15\ lb$

substitute and solve for x

$3^{3} =\frac{x}{0.15}$

$x=(27)(0.15)=4.05\ lb$

therefore

The weight of the larger marble paperweight is 4.05 lb

8 0

3 years ago

Help. also explain :) please

Anuta_ua [19.1K]

The answer is £140

First you find 20% of 1200 (which is basically 20 times 12) which gives you £240.

You add £240 to £1200 which is £1440

Then you take £300 off £1440 since he already paid the deposit.

That leaves you with £1140

1140 divided by 10 is 114

5 0

3 years ago