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Tatiana [17]
3 years ago
12

A florist has 30 carnations and 42 roses. He wants to put the flowers in vases so that each vase has the same number of flowers

Mathematics
1 answer:
Nesterboy [21]3 years ago
4 0

Note that

  • 30=2·3·5;
  • 42=2·3·7.

Find the grearest common factor GCF(30,42). You can see that numbers 30 and 42 have common factors 2 and 3, then

GCF(30,42)=2\cdot 3=6.

This gives that the greatest number of identical vases florist can fill is 6. Each vase will contain

  • 30:6=5 carnations;
  • 42:6=7 roses.

Therefore, in each vase will be 12 flowers (5 carnations and 7 roses).


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Find the missing angle! Please add an explanation!
AlladinOne [14]

Answer:

The answer is: 58^\circ

Step-by-step explanation:

If we add the angles inside a triangle, we must have 180^\circ. So we have an 57^\circ angle and an 65^\circ angle, their sum is 122^\circ, so the missing angle must be 180^\circ-122^\circ=58^\circ

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The speed of a stream is 2 mph. A boat travels 20 miles upstream in the same time it takes to travel 40 miles downstream. What i
nataly862011 [7]

Answer:

<em>The speed of a boat in still water is 6 miles per hour. </em>

Step-by-step explanation:

t = \frac{20}{s-2}  (upstream)

t = \frac{40}{s+2}  (downstream)

\frac{20}{s-2} = \frac{40}{s+2}

40 ( s - 2 ) = 20 ( s + 2 )

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<em>The speed of a boat in still water is 6 miles per hour.</em>

5 0
2 years ago
ANSWER FAST!!!!!!!
Lemur [1.5K]

Answer:

The angle between the 190 ft. side and the 330 ft. side is 57.9^o

Step-by-step explanation:

<u>The Law of Cosines</u>

When we know the value of all sides of a triangle, we can compute all of its interior angles by using the Law of Cosines, which is a generalization of the Pythagoras's theorem. If a,b, and c are the known sides of a triangle and \alpha is the angle formed by sides a and b (opposite to c), then

\displaystyle c^2=a^2+b^2-2ab\ cos\alpha

We'll use the values a=190, b=330, c=280 because we want to compute the angle opposite to c

\displaystyle cos\alpha =\frac{a^2+b^2-c^2}{2ab}

\displaystyle cos\alpha =\frac{190^2+330^2-280^2}{2(190)(330)}

\displaystyle cos\alpha =\frac{36100+108900-78400}{125400}

\displaystyle cos\alpha =\frac{66600}{125400}=0,5311

\displaystyle \alpha= arccos\ 0.5311

\boxed{\displaystyle \alpha= 57.9^o}

5 0
3 years ago
Showing algebraic support, find the value of x.
Travka [436]

Answer:

x = 52.5

Step-by-step explanation:

The triangle on the left has 2 congruent sides, thus is isosceles

The base angles of an isosceles triangle are also congruent, thus

x = \frac{180-75}{2} = \frac{105}{2} = 52.5

3 0
3 years ago
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