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solmaris [256]
3 years ago
6

20 grams is 60% of what weight

Mathematics
1 answer:
Assoli18 [71]3 years ago
7 0

Answer:12

Step-by-step explanation: 0.6 x 20= 12

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A rectangle has a length (2x−5) and a width of (x−3) . What is the area of the rectangle?
mrs_skeptik [129]

Answer:

2x² - 11x + 15

Step-by-step explanation:

Find the area of the rectangle by multiplying the length and width together, using FOIL

(2x - 5)(x - 3)

Multiply the first terms:

(2x)(x) = 2x²

Multiply the first term in the parentheses by the last term in the second set of parentheses:

(2x)(-3) = -6x

Multiply the second term in the first set of parentheses by the first term in the second set:

(-5)(x) = -5x

Multiply the last terms:

(-5)(-3) = 15

Add these all together, then add like terms

2x² - 6x - 5x + 15

2x² - 11x + 15

So, the area of the rectangle is 2x² - 11x + 15

4 0
3 years ago
How do I solve -2 = 12/x?​
pychu [463]

Answer:

x = -6

Step-by-step explanation:

-2 = 12/x

-2x = 12

x = 12/-2

x = -6

6 0
3 years ago
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What is 50/400 simplified
tresset_1 [31]
50/400 is 1/8 simplified
7 0
3 years ago
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Find the area and the circumference of a circle with radius 7 cm.
natka813 [3]

<em>answers \\ area = 153.86 \:  {cm}^{2}  \\ circumference = 43.96 \: cm \\  \\ solution \\ radius = 7cm \\ area \: of \: circle = \pi {r}^{2}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  \: 3.14 \times  {7}^{2}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 3.14 \times 49 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  153.86 \:  {cm}^{2}  \\ circumference \: of \: circle = 2\pi \: r \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 2 \times 3.14 \times 7 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 43.96 \: cm \\ hope \: it \: helps \\ good \: luck \: on \: you r \: assignment</em>

5 0
4 years ago
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You invested $11,000 in two accounts paying 3% and 7% annual interest, respectively. If the total interest earned for the year w
Trava [24]

Answer:

I invested $ 10,000 at 7% per year, and $ 1,000 at 3% per year.

Step-by-step explanation:

Given that I invested $ 11,000 in two accounts paying 3% and 7% annual interest, respectively, if the total interest earned for the year was $ 730, to determine how much was invested at each rate, the following calculation must be performed:

5,000 x 0.07 + 6,000 x 0.03 = 530

8,000 x 0.07 + 3,000 x 0.03 = 650

10,000 x 0.07 + 1,000 x 0.03 = 730

Therefore, I invested $ 10,000 at 7% per year, and $ 1,000 at 3% per year.

6 0
3 years ago
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