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xxTIMURxx [149]
3 years ago
11

An expression is shown.

Mathematics
1 answer:
babunello [35]3 years ago
6 0

Answer:

1 ¹⁄₁₄

Step-by-step explanation:

[Step 1] [convert mixed fractions to improper fractions]

1 3/7 divided by 1 1/3 →

a b/c = b + a(c) / c = (b + ac) / c.

3 + 1(7) / 7 divided by 1 + 1(3) / 3 →

10 / 7 divided by 4 / 3.

[Step 2] [flip the numerator and denominator(take the reciprocal) of the fraction you are dividing by and multiply]

10 / 7 divided by 4 / 3 →

a / b → b / a = 1 / (a / b) = (a / b) ^ -1.

10 / 7 multiplied by (3 / 4).

When you multiply 2 fractions, you multiply across. Numerator × Numerator / Denominator × Denominator.

a / b × c / d = (a × c) / (b × d).

10 / 7 multiplied by (3 / 4) →

10 / 7 × 3 / 4 →

(10 × 3) / (7 × 4) →

30 / 28.

[Reduce completely until the denominator or numerator is prime or can only be divided by one and itself to remain an integer]

30 / 28 →

15 / 14.

[Find the difference between the numerator and denominator and that will be the numerator of the mixed fraction or the remainder, the denominator will be the same denominator of the improper fraction and the whole part will be how many times the denominator can fit in the numerator of the improper fraction]

[Or you can do long division and you will add the quotient (top number above long division bar) and the remainder.]

a / b = (# times b fits into a) + (remainder / b).

15 / 14 = (# times 14 fits into 15) + (1 / 14).

15 / 14 = 1 + (1 / 14)

15 / 14 = 1 ¹⁄₁₄

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the area of a triangle is 6 and 3/8 square yards. The height of the triangle is 2 and 1/2 yards. What is the length of the base
Otrada [13]

Solution:

<u>Note that:</u>

  • Area of triangle = 6 3/8 yd²
  • Height of triangle = 2 1/2
  • Area of triangle = 1/2 x base x altitude

<u>Use the formula to find the base of the triangle.</u>

  • 1/2 x base x altitude = 6 3/8 yd²
  • => 1/2 x base x 2 1/2 = 6 3/8 yd²
  • => 1/2 x base x 5/2 = 6 3/8 yd²
  • => 5/4 x base = 6 3/8 yd²
  • => base = 6 3/8 ÷ 5/4 yd
  • => base = 51/8 x 4/5 yd
  • => base = 51/2 x 1/5 yd
  • => base = 51/10 yd

The length of the base is 51/10 yards.

8 0
2 years ago
Read 2 more answers
∠A=6x+5 ∘ space, start color blueD, angle, A, equals, 6, x, plus, 5, degree, end color blueD \qquad\green{\angle B=4x + 45^\circ
anyanavicka [17]

Answer:

Step-by-step explanation:

Find the required figure in the attachment. From the figure, <A = <B (alternate interior angle)

Given

∠A=6x+5

∠B=4x+45

Since <A = <B hence;

6x+5 = 4x+45

Collect the like terms

6x-4x = 45-5

2x = 40

Divide both sides by 2;

2x/2 = 40/2

x = 20

Hence the value of x is 20°

Next is to get the measure of <A

Since <A = 6x+5

Substitute x = 20° into the expression

<A = 6(20)+6

<A = 120+6

<A = 126°

Hence the measure of <A is 126°

5 0
4 years ago
When a new machine is functioning properly, only 4% of the items produced are defective. Assume that we will randomly select two
erastovalidia [21]

Answer:

For each part selected, the probability of a defective part being produced must be 0.04.

The parts must be selected independently.

Step-by-step explanation:

For each part, there are only two possible outcomes. Either they are defective, or they are not. Each part has a 4% probability of being defective, and the probability of a part being defective is independent of other parts, that is, they are selected independently. These are the conditions under which this situation would be a binomial experiment.

So the correct answers are:

For each part selected, the probability of a defective part being produced must be 0.04.

The parts must be selected independently.

4 0
3 years ago
What are the two least likley sums to be rolled on two regular dice? Why?
Furkat [3]

Answer:

I think its 2 and 12

Step-by-step explanation:

Any double is not so likely as  say a 7 ( there are more ways to get a 7 than say  a double 1  because a 7 may be  a 6&1 , 2&5 or 3&4 but there's one 1 way to get  a double 1).

I think it must be 2 (double 1) and 12 ( double 6)  because there are no other ways to get these totals. Other doubles can give same value as other combinations For example  double 2  =  value  4 and 3 and 1 = 4.

6 0
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A backpack is normally $64.99 but is discounted ti $45.49. What percent of the original does Maria pay?
Setler [38]

Answer:30%

Step-by-step explanation:

3 0
3 years ago
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