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4 years ago

Help please...........

Mathematics

1 answer:

zubka84 [21]4 years ago

3 0

I think the answer is B

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9{[(9 X 9 - 10) = 2] – 5}

Lina20 [59]

Answer:

Step-by-step explanation:

9{[(9×9-10)-2]-5}

=9{[(81-10)-2]-5}

=9{[71-2]-5}

=9{69-5}

=9(64)

=576

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3 years ago

Expand and Simplify 4(g + 5) + 3(g – 2)

Montano1993 [528]

The solution is 7g+14

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3 years ago

Danny’s supermarket has 1 litter water bottles normally priced at $1.50 reduced 25%

geniusboy [140]

Answer: Danny's supermarket

Step-by-step explanation:

Danny's price- 0.75x1.5= $1.12 for 1 liter water bottle

Marta's price- $1.50 for 1.25 liter water bottle

1.12x1.25=1.40, if Danny was selling a 25% bigger bottle(making the bottle size equal to Marta's) it would cost $1.40, the lower price

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2 years ago

5a+18≤6(a+3)-a . the solution in set builder notation

Ket [755]

Answer:

{a | always(true)}

Step-by-step explanation:

this means that this will always be true regardless of the value for a

8 0

3 years ago

Read 2 more answers

A new field has a perimeter of 220 m and a width of 62 m. A bag of canola seed will cover 185 m2 of ground. How many bags of can

siniylev [52]

Answer:

Step-by-step explanation:

Assuming the field is a rectangle, the perimeter is found through the equation:

$P = 2l + 2w$

Since we know the perimeter and width, we can substitute and solve for the length.

$(220) = 2l + 2(62)\\220 = 2l + 124\\96 = 2l\\l = 48\\$

Using the length and width, we can find the area.

$A = lw\\A = (48)(62)\\A = 2976$

The area is 2976 squared meters. We divide by the area a bag of canola seed can cover and round up if necessary to find the total number of bags.

$n = 2976 / 185\\n = 16.09$

Because we need a whole bag in order to cover for the decimal area, we round up to 17 bags.

7 0

3 years ago