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3 years ago

Which of the following expressions is equivalent to the expression 5(4n - 11) - 3n + 20?

Mathematics

2 answers:

WINSTONCH [101]3 years ago

7 0

17n-35 would be the correct answer

kow [346]3 years ago

6 0

20n - 55 - 3n + 20
20-3 = 17
-55+20 = -35
17n - 35

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Connor had 37 green marbles. Then he bought 3 bags of blue marbles. There were 6 marbles in each bag. How many marbles does Conn

ycow [4]

Answer:

55 marbles.

Step-by-step explanation:

You multiply 3 and 6 and that equals 18. You multiply the numbers together because you know he has 3 bags of marbles and he has 6 marbles in each bag. Then you take the 18 marbles and add them together with the 37 marbles and you get 55 marbles.

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3 years ago

Divide fractions 1/2 divided by 1/6

SVEN [57.7K]

1/2 divided by 1/6 is 3

use KCF strategy

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3 years ago

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Reil [10]

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Step-by-step explanation:

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2 years ago

Un jardín rectangular de 50 cm de largo por 34 m de ancho está rodeado por un camino de arena uniforme.Halla la anchura de dicho

Anastasy [175]

Answer:

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Step-by-step explanation:

The width of the sand road can be calculated knowing its area and the dimensions of the rectangular garden as follows:

$A_{g} = a.b$

Where:

Ag: is the area of the rectangular garden

a: is the length of the rectangular garden = 50 cm = 0.5 m

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Where:

As: is the area of the sand road

The relation between the area of the sand road and the area of the rectangular garden is the following:

$A_{s} + A_{g} = (a+2x)*(b+2x)$

$540 m^{2} + 0.5m*34m = ab + 2ax + 2bx + 4x^{2}$

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$557 m^{2} - 17m^{2} - 2x(34.5 m) - 4x^{2} = 0$

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By solving the above equation for x we have two solutions:

x₁ = -23.10 m

x₂ = 5.85 m

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I hope it helps you!

7 0

3 years ago

A sweater is on sale for 20%

bagirrra123 [75]

$72 To find out how much the sweater is without 20% off, you need to do this formula:

$60 x 20%

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So, 20% of $60 is $12.

Now, you need to add 60 and 12 together to get the original sale price.

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The answer is 72.

So the original price for the sweater is 72 dollars.

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3 years ago