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fiasKO [112]
4 years ago
12

243/8-(541/8)= how to solve it

Mathematics
1 answer:
alexgriva [62]4 years ago
7 0
\frac{243}{8} - (\frac{541}{8} ) 

First, simplfy brackets. / Your problem should look like: \frac{243}{8} - \frac{541}{8}
Second, join the denominators. / Your problem should look like: \frac{243-541}{8}
Third, simplify. / Your problem should look like: - \frac{298}{8}
Fourth, simplify \frac{298}{8} to \frac{149}{4}
Fifth, convert to a mixed fraction. / Your problem should look like: -37 \frac{1}{4}

Answer as fraction: -37 \frac{1}{4}
Answer as decimal: -37.25

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Which statement is true about the graphed function?
zubka84 [21]

Answer:

Option A.

Step-by-step explanation:

In the given graph there are four intervals in which we have to find the nature of function.

1). In the interval (-∞, -0.7)

f(x) < 0

Because for every value of x, value of the function is negative.

2). In the interval (-0.7, 0.76)

f(x) > 0

For each value of x, value of the function is greater than 0.

3). In the interval (0.76, 2.5)

f(x) < 0

Because in this interval value of the function is negative.

4). Interval (2.5, ∞)

f(x) > 0

Because value of the function for every value of x, is greater than 0.

When we compile all four properties Option A. comes out to be the right option.

7 0
3 years ago
Find the area of this irregular figure. All angles are right angles. 128 in2 296 in2 256 in2 80 in2
kupik [55]

Answer:

256in²

Step-by-step explanation:

Just add the area the two Rectangals = A=128*2 = 256in² or calclute the whole and deduct the 2 missing sqares 16

384-128=256in²

5 0
4 years ago
Find the amount of an annuity that consists of 25 quarterly payments of $800 each into an account that pays 8% interest per year
blsea [12.9K]

Answer: 400

25 x 800 = 20,000 x 8% = 1,600 / 4 = 400

6 0
3 years ago
Alloy is a mixture of metals. Suppose that a certain alloy is made by mixing 90 grams of an alloy containing 50% of copper with
oksano4ka [1.4K]

Answer:

Final alloy

  • weighs 160 grams
  • contains 69.5 grams of cooper
  • percent of cooper in alloy is 43.4375\%

Step-by-step explanation:

Suppose that a certain alloy is made by mixing 90 grams of an alloy containing 50% of copper with 70 grams of an alloy containing 35% copper.

50% alloy contains

90\cdot 0.5=45 grams of cooper

35% alloy contains

70\cdot 0.35=24.5 grams of cooper

Final alloy

  • weight =90+70=160 grams
  • contains cooper =45+24.5=69.5 grams
  • percent of cooper in alloy =\dfrac{69.5}{160}\cdot 100\%=43.4375\%
7 0
3 years ago
Which arrangement shows 3 4/5, 3.75, 3.6, and 27/8 in order from least to greatest?
Andrews [41]
The answer would be B.
3 0
3 years ago
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