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valentinak56 [21]
3 years ago
12

Find two numbers if their sum is -11 and their difference is 41

Mathematics
2 answers:
larisa [96]3 years ago
8 0

Answer:

The numbers are 12 and −29

Step-by-step explanation:

ale4655 [162]3 years ago
6 0

Answer:

x = 15

y = -26

hence, the numbers are 15 and -26

Step-by-step explanation:

let's take the numbers be x and y

now, we know

=》x + y = -11

=》x - y = 41

so, if we add these equations we get,

=》x + y + x - y = -11 + 41

=》2x = 30

=》x = 30 ÷ 2

=》x = 15

replacing the value of x in the equation 1, we get :

=》x + y = -11

=》15 + y = -11

=》y = -11 - 15

=》y = -26

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Completa el enunciado siguiente. Luego usa una recta numérica para hallar la suma 4 + (-7).
bagirrra123 [75]
Respuesta Es -3 (tried my best I’m only in Spanish two my main language is English)
8 0
2 years ago
A cafe sells puffs. 5/9 are beef and 1/3 are chicken. The remaining 18 are tuna. Calculate 1. What fraction of the puffs are tun
Ksivusya [100]
Let n be the total number of puffs. Now we can write:
n=\frac{5}{9}n+\frac{1}{3}n+18
Adding the fractional value of n, we get:
n=\frac{5+3}{9}n+18
Simplifying and rearranging gives us:
n-\frac{8}{9}n=18
Therefore we can simplify to get:
\frac{1}{9}n=18
and finally
n=18\times9=?
The fraction of the puff that are tuna is found from:
\frac{18}{18\times9}=\frac{1}{9}
7 0
3 years ago
Read 2 more answers
For the following telescoping series, find a formula for the nth term of the sequence of partial sums
gtnhenbr [62]

I'm guessing the sum is supposed to be

\displaystyle\sum_{k=1}^\infty\frac{10}{(5k-1)(5k+4)}

Split the summand into partial fractions:

\dfrac1{(5k-1)(5k+4)}=\dfrac a{5k-1}+\dfrac b{5k+4}

1=a(5k+4)+b(5k-1)

If k=-\frac45, then

1=b(-4-1)\implies b=-\frac15

If k=\frac15, then

1=a(1+4)\implies a=\frac15

This means

\dfrac{10}{(5k-1)(5k+4)}=\dfrac2{5k-1}-\dfrac2{5k+4}

Consider the nth partial sum of the series:

S_n=2\left(\dfrac14-\dfrac19\right)+2\left(\dfrac19-\dfrac1{14}\right)+2\left(\dfrac1{14}-\dfrac1{19}\right)+\cdots+2\left(\dfrac1{5n-1}-\dfrac1{5n+4}\right)

The sum telescopes so that

S_n=\dfrac2{14}-\dfrac2{5n+4}

and as n\to\infty, the second term vanishes and leaves us with

\displaystyle\sum_{k=1}^\infty\frac{10}{(5k-1)(5k+4)}=\lim_{n\to\infty}S_n=\frac17

7 0
3 years ago
3) When mixing a paint color, you need to use 2 gallons of white and 3 gallons of blue. How many gallons of
elixir [45]

Answer:

I think the answer is 25

Step-by-step explanation:

So, if you add 2 and 3, you get 5.

Multiply 5 by 10 to get 50

Divide 50 by 2 to get 25

So, you'll need 25 gallons of paint.

Hope this helped!

(Please mark as Brainliest <3)

6 0
2 years ago
Y = 5-3x, Darw the graph of the function. Use the find the value of y when x=4, and when x = 5​
stellarik [79]

Answer:

The line passes through (4, -7) and (5, -10).

Step-by-step explanation:

When x = 4, y = 5 - 3(4), or 5 - 12, or -7.  Thus the point (4, -7) lies on the graph.  Similarly y = 5 - 3(5) = -10 when x  = 5.  Thus, the line also goes through (5, -10).  Plot these two points and draw a line through them.  Doing this will result in the desired graph.

6 0
2 years ago
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