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sergey [27]
4 years ago
11

3t+u=561

Mathematics
1 answer:
fgiga [73]4 years ago
8 0
Look, solve it first for" b "
u=561 - 3t
t =906 - 7b
So, 2b+7(906 -7b)+5(561 - 3(906-7b)=1758
gain the b then substitute by the result in the second equation then gain the value of t and solve the first equation.
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In a 30°- 60° - 90° right triangle, the shorter leg has a length of 4.
Studentka2010 [4]
In a 30°-60°-90° triangle, the ratio of the legs is \sqrt{3}:1

So if the shorter leg is 4, then the longer leg is 4\sqrt{3}
5 0
4 years ago
The two salespeople for s local adverts firm are Trinity and Jason. Trinity sold $2330 in ads and Jason sold $1740. What fractio
LenKa [72]

Answer:

Part 1) Trinity 233/407

Part 2) Jason 174/407

Step-by-step explanation:

we know that

Trinity sold $2,330 and Jason sold $1,740

so

step 1

Find out the total sales

The total sales is equal to Trinity's sales plus Jason's sales

so

$2,330+$1,740=$4,070

step 2

The fraction of total sales that Trinity sold is equal to divide the sales of Trinity by the total sales

2,330/4,070

Simplify

233/407

step 3

The fraction of total sales that Jason sold is equal to divide the sales of Jason by the total sales

1,740/4,070

Simplify

174/407

7 0
4 years ago
How do you do this???
Lina20 [59]

Answer:

Step-by-step explanation:

estimate, appraise, evaluate, value, rate, assess mean to judge something with respect to its worth or significance.

6 0
3 years ago
Read 2 more answers
Plz help i dont understand
Elina [12.6K]
You can search in google if you want for the "inscribed quadrilateral conjecture"

and if you want... I can give you a quick proof of it

hmmm in short, if you inscribe a quadrilateral polygon in a circle
it will have 4 angles

each pair of opposite angles, are "supplementary angles", or they add up to 180°

so.. that said in yours, R+P = 180 and Q+O = 180 as well

you only need Q

so  \bf \measuredangle Q+\measuredangle O=180\qquad 
\begin{cases}
\measuredangle Q=2x+4\\\\
\measuredangle O=2x
\end{cases}\implies (2x+4)+(2x)=180

solve for "x"

how big is Q? well, 2x + 4 :)
5 0
4 years ago
Given that
yulyashka [42]

Answer:

y = - 49

Step-by-step explanation:

Given

7x - 2y = 35 ← substitute x = - 9 into the equation

7(- 9) - 2y = 35, that is

- 63 - 2y = 35 ( add 63 to both sides )

- 2y = 98 ( divide both sides by - 2 )

y = - 49

5 0
3 years ago
Read 2 more answers
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