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pickupchik [31]
3 years ago
7

I need you show me your answer for number 51

Mathematics
2 answers:
VladimirAG [237]3 years ago
6 0
Graph A is the answer
Just loon at the x and y
iragen [17]3 years ago
5 0
It's graph C. because on the first pair of numbers you can see that they both line up with the graph. Also, if you find the pattern between the numbers (x-3 and y-1) the graph C. lines up.

Hoped I helped! :)
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Two pumps can fill a pool tank in 26 hours when working together. Alone, the second pump takes twice as long as the first to fil
vesna_86 [32]

Answer:

Step-by-step explanation:

Let's say

d1 the outflow of the first pump

d2 the outflow of the second pump

V=1 is the volume of the tank

Since the second pump takes twice as long as the first to fill the tank,

V=1=k*d_1*t\\V=1=k*d_2*(2*t)\\==>\ d_1=2*d_2\\\\

Two pumps can fill a pool tank in 26 hours when working together:

V=1=k*(d_1+d_2)*26 \ ==> V=1=k*(3*d_2)*26 \  ==>k=\dfrac{1}{3*d_2*26} \\\\

How long does it take the first pump alone to fill the tank:

V=1=k*d_1*t=k*2*d_2*t=k*3d_2*26\\2*t=3*26\\\\t=\frac{3*26}{2} \\\\t=3*13\\\\t=39\ (hours)

4 0
3 years ago
The number y divided by 100
Andrej [43]
Y/ 100 is the fraction that you should get
5 0
3 years ago
6x+6y=-6, 5x+y=-13<br>Show your process please<br>Solve the linear equation​
lisabon 2012 [21]

Answer: Rewrite equations:

5x+y=−13;6x+6y=−6

Step: Solve5x+y=−13for y:

5x+y=−13

5x+y+−5x=−13+−5x(Add -5x to both sides)

y=−5x−13

Step: Substitute−5x−13foryin6x+6y=−6:

6x+6y=−6

6x+6(−5x−13)=−6

−24x−78=−6(Simplify both sides of the equation)

−24x−78+78=−6+78(Add 78 to both sides)

−24x=72

−24x

−24

=

72

−24

(Divide both sides by -24)

x=−3

Step: Substitute−3forxiny=−5x−13:

y=−5x−13

y=(−5)(−3)−13

y=2(Simplify both sides of the equation)

Answer:

x=−3 and y=2

Step-by-step explanation:

5 0
3 years ago
4 drivers/ 30 square miles is they want to offer service to country of 75 square miles, how many must they have
dmitriy555 [2]
By proportion:-

4 / 30 = x / 75  where x is number needed for  the '75' country

30x = 300

x = 10


They need 10 drivers.
3 0
3 years ago
Find the indicated limit, if it exists.
babymother [125]

Answer:  -3

Step-by-step explanation:

-10+7=-3

5 0
3 years ago
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