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LuckyWell [14K]
4 years ago
6

Estimate: 9,210 - 88 A)9100 B)8900 C)9000 D)9200

Mathematics
2 answers:
Romashka [77]4 years ago
8 0

Answer:

A

Step-by-step explanation:

valentinak56 [21]4 years ago
4 0

Answer:

A would be the closest!

Step-by-step explanation:

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24 = -6 (m+1) + 18 <br> What is the answer?
kirill115 [55]

Answer:

m = -2

Step-by-step explanation:

24 = -6(m + 1) + 18 (Given)

24 = -6(m) + -6(1) + 18 (Distributive Property of Equality)

24 = -6m - 6 + 18 (Simplify)

24 = -6m + 12 (Simplify)

24 - 12 = -6m + 12 - 12 (Subtraction Property of Equality)

12 = -6m (Simplify)

\frac{12}{-6} = \frac{-6m}{-6} (Division Property of Equality)

-2 = m (Simplify)

m = -2 (Distributive Property of Equality)

3 0
3 years ago
While playing a video game a player collected 18 of the 45 available coins right and simplify a fraction to represent the situat
Tema [17]

Answer:

2 / 5

Step-by-step explanation:

Fractions are written in the form part/whole, in this case, the part is 18 and the whole is 45 so the fraction would be 18 / 45 which simplifies to 2 / 5.

7 0
4 years ago
The perimeter of a playing field for a certain sport is 334ft. The field is a rectangle, and the length is 47 ft longer than the
babunello [35]

Answer:

The dimensions of the rectangle = 60ft by 107ft

Where 60 ft = Width of the playing field

107ft = Length of the playing field

Step-by-step explanation:

A playing field is Rectangular is shape, hence,

The formula for Perimeter of a rectangle = 2(L + W)

P = 334 ft

L = 47 + W

W = W

Hence we input these values in the formula and we have:

334 = 2(47 + W + W)

334 = 2(47 + 2W)

334 = 94 + 4W

334 - 94 = 4W

240 = 4W

W = 240/4

W = 60

There fore, the width of this playing field = 60 ft

The length of this rectangle is calculated as:

47 + W

47 + 60

= 107 ft

The length of this playing field = 107ft

Therefore the dimensions of the rectangle = 60ft by 107ft

6 0
3 years ago
Order the numbers 0.64, 2/3, 65%, and <br> 7/10 from least to greatest.
ExtremeBDS [4]

Answer:

0.64, 65%, 2/3, 7/10.

Step-by-step explanation:

2/3=0.667

65%=0.65

7/10=0.7

From least to greatest:

0.64, 65%, 2/3, 7/10

6 0
3 years ago
Read 2 more answers
How much of 30% HCI and 45% HCI would be needed to mix and produce 50 liters of 35% HCI
VladimirAG [237]

Answer:

  • 33 1/3 liters of 30%
  • 16 2/3 liters of 45%

Step-by-step explanation:

Let x represent the liters of 45% solution needed. Then the amount of HCl in the mix is ...

  0.45x +0.30(50 -x) = 0.35(50)

  0.15x = 0.05(50) . . . . . simplify, subtract 0.30(50)

  x = (0.05/0.15)(50) = 50/3 = 16 2/3 . . . liters of 45% HCl

33  1/3 liters of 30% and 16 2/3 liters of 45% HCl are needed.

_____

<em>Comment on the solution</em>

You may notice that the general solution to a mixture problem of this sort is that the fraction of the mix that is the highest contributor is ...

  (mix % - low %) / (high % - low %) = (.35 -.30) / (.45 -.30) = .05/.15 = 1/3

5 0
4 years ago
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