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3 years ago

15

Multiply. (7c+6)(-5c-4) Simplify your answer. Х

2 answers:

Semenov [28]3 years ago

7 0

Answer:

120c

Step-by-step explanation:

7c(-5c)*(-4+6)

7c+5c*4+6

12c*10

120c

Sergeeva-Olga [200]3 years ago

4 0

Answer:

the answer can be step by step explanation will be found in the answer was Matilda by 776 7 x 6 then the answer you will you - with the answer dancer used you New divide the answer that answer the simple your answer if we multiply you can contact me and say me in which is correct or wrong and I am a teacher

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The average weight of 7 potted plants is 23 pounds. An 8th potted plant is added to the pallet,

cluponka [151]

Answer:

The weight of the 8th plant is 39lb

Step-by-step explanation:

Given:

Average Weight of 7 plants = 23lb

Average Weight of 8 plants = 25lb

Required:

Weight of the 8th plant

To solve this, the total weight of the initial 7 plants need to be calculated;

$Average = \frac{Sum-of-weights}{Number-of-Plants}$

Substitute 23 for Average and 7 for Number of plants

$23 = \frac{Sum-of-weights}{7}$

Multiply both sides by 7

$7 * 23 = \frac{Sum-of-weights}{7} * 7$

$161 = Sum-of-weights$

Hence, the 7 plants weigh 161

Represent the weight of the 8th plant with E

When the 8th plant is added;

The sum of the weight becomes 161 + E

And the number of plants becomes 8

The average is calculated as thus

$Average = \frac{Sum-of-weights}{Number-of-Plants}$

$25 = \frac{161 + E}{8}$

Multiply both sides by 8

$8 * 25 = \frac{161 + E}{8} * 8$

$200 = 161 + E$

Subtract 161 from both sides

$200 -161 = 161 - 161 + E$

$39 = E$

Reorder

$E = 39$

Hence, the weight of the 8th plant is 39lb

6 0

3 years ago

You earn $100 plus 1/5 of your sales each week. What dollar amount of sales do you need this week to earn $600?

meriva

Answer:

You'll need $2,500 in sales this week to end up with $600 in income for the week.

Step-by-step explanation:

Let s represent the dollar amount of the total sales for the week.

The commission earned on such sales is 1/5, or 0.20, of s:

Commission: 0.20s

Then the correct expression for your weekly income is:

$100 + 0.20s = $600.

Solving for s, subtract $100 from both sides. Then 0.20s = $500, and through division we get s = $2,500.

You'll need $2,500 in sales this week to end up with $600 in income for the week.

8 0

3 years ago

If you spin the spinner, what is the probability of the pointer landing in the y section

german

Answer:

1/8

Step-by-step explanation:

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3 years ago

At least initially, remarriage brings which conditions?

DaniilM [7]

I think better health I hope I help u

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4 years ago

What is the expression of a b c + d e f

Sergeu [11.5K]

Answer:

Step-by-step explanation:

This is the SUM of two PRODUCTS.

4 0

4 years ago