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Nookie1986 [14]
3 years ago
5

I'm thinking of two numbers. The first plus twice the second equals 11. Twice the first plus three times the second equals 50. W

hat are the numbers?
Mathematics
1 answer:
valentinak56 [21]3 years ago
3 0
2x + 4y - 2x - 3y = 22 - 50

y = -28

substitute into the 1st equation to find x

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1/2(x+10)= 1/4 (x-8) x= <br> (must be a fraction)
Alex_Xolod [135]

Answer:

x=-9\frac{1}{3}

Step-by-step explanation:

\frac{1}{2}(x+10)=\frac{1}{4}(x-8)

\frac{1}{2}x+5=\frac{1}{4}x-2

\frac{1}{2}x-\frac{1}{4}x=-5-2

\frac{3}{4}x=-7

x=-\frac{28}{3}=-9\frac{1}{3}

5 0
3 years ago
Evaluate.
Jlenok [28]
45 + 2 × [ (45 × 60) + 25]
45 + 2 × 2700 + 25
70 + 5400
5470
5 0
3 years ago
Which is the longer trip from Earth, a one-way trip to Mars or a round-trip to Venus?
dimulka [17.4K]
<span>if a trip from earth to mars, is 97/186=.52150
 
and a trip from earth to venus is 0.2774(now we have to times it by 2 since its a roundtrip),

we get .5548 we can clearly see that .5548>.52150

So roundtrip venus</span>
6 0
3 years ago
Read 2 more answers
Find the GCF of 8 and 12. WIll give brainliest for the best and most clear answer. :)
siniylev [52]

Answer:

GCF = 4

Step-by-step explanation:

The factors of 8 are: 1, 2, 4, 8

The factors of 12 are: 1, 2, 3, 4, 6, 12

The greatest common factor is 4.

I hope this helps :).

3 0
3 years ago
Read 2 more answers
Suppose that, in 1995, Germany produced 4.719 million computers. The total world production that year totaled 80 million compute
Reptile [31]

Answer:

To the nearest tenth

Percentage= 5.9%

Step-by-step explanation:

In 1995, Germany produced 4.719 million computers.

In that same year, the total computer production of the whole world was 80 million.

The percentage of the world production contributed by Germany

=Number produced by Germany/Number produced by the whole world * 100

The percentage of the world production contributed by Germany

=( 4.719/80)*100

The percentage of the world production contributed by Germany

=5.89875%

To the nearest tenth

= 5.9%

3 0
3 years ago
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