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3 years ago

The sum of two numbers is 24. if five times the smaller is added to twice the larger, the result is 78. find the two numbers

Mathematics

1 answer:

rewona [7]3 years ago

4 0

The value of small number is 10 and larger is 14

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PLEASE ANSWER ASAP !!!

Inga [223]

Answer:

The answer is x = -6

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2 years ago

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Identify the variables in the graph describe how the variables are related

Alex17521 [72]

The time(h), would be the independent variable and the temperature(C) would be the dependent variable.

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3 years ago

Answers for both boxes please

sleet_krkn [62]

Answer:

x = -5 y = -3

Step-by-step explanation:

-3x + 2y = 9

multiply the 2nd equation by 3 to set it up for elimination

3(x - 3y)= 3(4)

3x-9y = 12

so now combine both to add

-3x + 2y = 9

3x - 9y = 12

Adding both gives you

-7y = 21

divide both by -7 and you get

y = -3

and you substitute y back into equation to get x

x - 3 (-3) = 4 gives you

x + 9 = 4

x = 4 - 9

x = -5

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2 years ago

Two ships leave the same port in different directions, forming a 120° angle between them. One ship travels 70 mi. and the other

kondaur [170]

Answer : Distance between the ships to the nearest miles = 106.03 ≈ 106 mi.

Explanation :

Since we have shown in the figure below :

a=70 mi.

b=52 mi.

c=x mi.

$\text{Since two ships leaves the same port in different directions forming a }120\textdegree\text{angle between them.}$

So, we use the cosine rule , which states that

$c^2=a^2+b^2-2ab.cosC\\\\x^2=70^2+52^2-2\times 70\times 52\times cos(120\textdegree)\\\\x^2=4900+2704-7280\times (-0.5)\\\\x^2=7604+3640\\\\x^2=11244\\\\x=\sqrt{11244}\\\\x=106.03$

So, c = x= 106.03 mi.

Hence, distance between the ships to the nearest miles = 106.03 ≈ 106 mi.

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3 years ago

I need help from you guys I have to teach in class on friday and I'm in 7th grade what can I teach help you guys anything like p

anygoal [31]

Have you learned about the Pythagorean theorem? a² + b² = c² . . . you should teach them about this.

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3 years ago

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