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3 years ago

4n - 30 = 7(-2n + 2) +10

Mathematics

2 answers:

schepotkina [342]3 years ago

8 0

answer to problem:

n = 3

enot [183]3 years ago

5 0

N=3
Distribute them at the numbers, add 30 to both sides of the equation then simplify. Then add 14 to both sides of the equation. Simplify again. Divide both sides of the equation by the same factor. Simplify. Answer is n=3

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Jessica bought 3/4 lb of berries. Mary bought 1/6 lb of berries less the jessica. what is the total weight of berries in pounds

Mrrafil [7]

Given that number of pounds of berries that Jessica bought = $\frac{3}{4}$ lb

Given that "Mary bought $\frac{1}{6}$ lb of berries less the jessica"

then number of pounds of berries that Mary bought

$=(\frac{3}{4}-\frac{1}{6})$ lb

$=\frac{3}{4}\cdot\frac{3}{3}-\frac{1}{6}\cdot\frac{2}{2}$ lb

$=\frac{9}{12}-\frac{2}{12}$ lb

$=\frac{7}{12}$ lb

Now we need to find the total weight of berries in pounds that they bought.

To find that we just need to add both values.

$\frac{3}{4}+\frac{7}{12}$

$=\frac{3}{4}\cdot\frac{3}{3}+\frac{7}{12}$

$=\frac{9}{12}+\frac{7}{12}$

$=\frac{16}{12}$

$=\frac{4}{3}$

Hence final answer is $\frac{4}{3}$ lb.

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3 years ago

What is 6829 km expressed in scientific notation?

Serggg [28]

Move the decimal until there is 1 whole number

6.829

3 units

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3 years ago

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Look at this equation. 48 = 12x. Which value of x makes the equation true?

kherson [118]

Answer:

x= 4

Step-by-step explanation:

simple math

48/12 = x

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A basket contains 4 green marbles and 8 blue marbles. a marble is drawn without replacement. then another marble is drawn. what

irina1246 [14]

4/12 reduces to 1/3 and 1/3 * 3/11 = 1/11

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3 years ago

What multiplication fact Can be found by using the Arrays for 2 times 9 and 5 times 9

serg [7]

An array is a visual drawing to be used in multiplication problems. For example; 1 × 2 is 2 and you draw it or visualize it like; 00
So the answer to your question would be...
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The top is the array of how it would look like to your answer tour question. Also, another way to do this is (2 + 5) × 9 = 63
And yasss your answer is 63.... ALSO

***!!! PLEASE give this a THANKS! ALSO the BRAINIEST ANSWER/QUESTION! :) :D =P =) =D

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3 years ago