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3 years ago

Topic Solving Percent Problems

Mathematics

1 answer:

svlad2 [7]3 years ago

3 0

Answer: Percent=60 base=120 amount= 291

Step-by-step explanation:

If amount=unknown. choose that

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How do i figure out 9 1/6 - 8 5/6 and 10 3/4 - 6 4/4?

Westkost [7]

Answer:

1) $9\frac{1}{6}-8\frac{5}{6}=\frac{1}{3}$

2) $10\frac{3}{4}-6\frac{4}{4}=3\frac{3}{4}$

Step-by-step explanation:

You can convert he mixed numbers to improper fractions:

1. Multiply the whole number part by the denominator of the fraction.

2. Add the product obtained to the numerator.

3. The denominator does not change.

Then:

$9\frac{1}{6}=\frac{54+1}{6}=\frac{55}{6}\\\\8\frac{5}{6}=\frac{48+5}{6}=\frac{53}{6}\\\\10\frac{3}{4}=\frac{40+3}{4}=\frac{43}{4}\\\\6\frac{4}{4}=\frac{24+4}{4}=\frac{28}{4}$

Observe that, in each subtraction, the denominators are equal, then you can rewrite the denominator and subtract the numerators:

$1)\ \frac{55}{6}-\frac{53}{6}=\frac{55-53}{6}= \frac{2}{6}=\frac{1}{3} \\\\2)\ \frac{43}{4}-\frac{28}{4}=\frac{43-28}{4}= \frac{15}{4}$

Divide 15 by 4. The quotient will be 3 and the remainder 3.

Then:

$\frac{15}{4}=3\frac{3}{4}$

6 0

3 years ago

What is the sum of 3+(−4) = -1

Dmitry [639]

3+-4=-1
3-4=-1
-1=-1

so the answer is:
-1 = -1

8 0

2 years ago

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1. Rob recently refinanced his monthly student loan

Alenkasestr [34]

C

14²+21²-√49
196+441-7
630

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2 years ago

In our solar system 6 of the 8 planets have moons what is the percentage of the planet have moons

umka2103 [35]

75% for your help:)…….

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2 years ago

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Matthew currently has enough money to buy 45 toy cars. If the cost of each car was 10 cents less, Matthew could buy 5 more cars.

Law Incorporation [45]

The answer is $45

Let's make the system of equations.
x - the cost of the car
y - the amount Matthew has

Matthew currently has enough money to buy 45 toy cars:
y =45x
If the cost of each car was 10 cents less, Matthew could buy 5 more cars:
y = (x - 10)*(45 + 5)

45x = (x - 0.10) * 50
45x = 50x - 5
5 = 50x - 45x
5 = 5x
x = 5 / 5
x = 1

y = 45x = 45 * 1 = $45

5 0

3 years ago