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Amiraneli [1.4K]
2 years ago
14

Solve the equation below

Mathematics
1 answer:
Arlecino [84]2 years ago
4 0

Answer:

(-3,8)

Step-by-step explanation:

7x+5y=19

y=8

Because we know y=8 we cane use 8 instead of y in the first equation.

   1) 7x+5(8)=19

   2) 7x+40=19

   3) 7x=-21

   4) x=-3

Checking the work)

   1) 7(-3)+5(8)=19

   2) -21+40=19

   3) 19=19

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Just completed this question as of right now it’s was : “ a common ratio between 0 and 1


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7,707 ÷ 24<br> what does this Equal and what is the remainder?
DochEvi [55]

Answer:

321 R 3

Step-by-step explanation:

the quotient is 321 with a remainder of 3

you can check your work by doing 321 * 24 + 3 = 7,707

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2 years ago
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A welder produces 7 welded assemblies during the first day on a new job, and the seventh assembly takes 45 minutes (unit time).
likoan [24]

Answer:

(a). 72.9%.

(b). 13.6 hr.

Step-by-step explanation:

So, we are given the following data or parameters or information which is going to assist us in solving this question/problem;

=> "A welder produces 7 welded assemblies during the first day on a new job, and the seventh assembly takes 45 minutes (unit time). "

=> The worker produces 10 welded assemblies on the second day, and the 10th assembly on the second day takes 30 minutes"

So, we will be making use of the Crawford learning curve model.

T(7) + 10 = T (17) = 30 min.

T(7) = T1(7)^b = 45.

T(17 ) = T1(17)^b = 30.

(T1) = 45/7^b = 30/17^b.

45/30 = 7^b/17^b = (7/17)^b.

1.5 = (0.41177)^b.

ln 1.5 = b ln 0.41177.

0.40547 = -0.8873 b.

b = - 0.45696.

=> 2^ -0.45696 = 0.7285.

= 72.9%.

(b). T1= 45/7^ - 045696 = 109.5 hr.

V(TT)(17) = 109.5 {(17.51^ - 0.45696 – 0.51^ - 0.45696) / (1 - 0.45696)} .

V(TT) (17) = 109.5 {(4.7317 - 0.6863) / 0.54304} .

= 815.7 min .

= 13.595 hr.

8 0
3 years ago
In ΔPQR, what is sin Q written as a decimal?
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Sin Q = oppo. / hypo
sin Q = 9/15
sin Q = 0.6
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Simplify the expression:<br> 10t - 40 + 3t + t
Pavlova-9 [17]

Answer:

Your <u>correct</u> answer is 14t - 40

Step-by-step explanation:

Combine like terms:

10t + 3t + t = 14t

Since there are no other integers, just tag on the -40:

14t - 40

**please mark brainliest!!

5 0
3 years ago
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