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lisabon 2012 [21]
3 years ago
7

Please answer I need help asap

Mathematics
2 answers:
VARVARA [1.3K]3 years ago
8 0
X=5 I hope I helped you the answer of the day please give me a Brainly list
strojnjashka [21]3 years ago
6 0

Answer:

x=5

Step-by-step explanation:

\frac{x}{3} =\frac{9+6}{9} \\\\\frac{x}{3} =\frac{15}{9}

cross multiply

45=9x

solve for x by dividing 9 to get x alone

5=x

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is (3,-3) a solution to the system 5x+4y=3, 2x-5y=19 need to be taught step by step please and thank you.
8090 [49]
Basically all you’re doing is plugging in the inputs to the equations and see if they’re correct.

5(3)+4(-3)=3 this proves to be true
2(3)-5(-3)=21 not 19
8 0
3 years ago
Read 2 more answers
A car traveled 180 miles at a constant rate. Write an equation that would
Mnenie [13.5K]

Answer:

180/t = r

Step-by-step explanation:

In this question, we would have to write an equation that represents the scenario given.

We know that the car traveled 180 miles at a constant rate.

We would use the y = mx + b format for the equation, but replacing the variables with "r" and "t"

We know that 180 will be our y-variable, since that would be the base of the equation:

180 = ???

And to find how long/fast it will take the car, we would need to multiply the rate of speed "r" and time "t" in order to get our distance.

Plug it into the equation:

180 = rt

With this set up, you can find the rate of speed of the car when you know the time.

You would simply solve it as:

180/t = r

7 0
3 years ago
raul bought 2 packs of erasers he found 2 erasers in his backpack now raul has 8 erasers were in each pack?
r-ruslan [8.4K]
There was 3 erasers in each pack because 2 times 3 is 6 plus 2 equals 8. so there are 3 in each pack.
7 0
3 years ago
Read 2 more answers
Please help. Please. I will mark brainliest
kolbaska11 [484]

Answer:

what type of math is this i never seen this before

7 0
3 years ago
How many square feet of outdoor carpet will we need for this hole
Fed [463]

Answer:

40 ft²

Step-by-step explanation:

The shape of the outdoor carpet can be decomposed into 2 triangles and 1 rectangle

✔️Area of triangle 1:

Area = ½*bh

b = 6 - 3 = 3 ft

h = 11 - 7 = 4 ft

Area of triangle 1 = ½*3*4 = 6 ft²

✔️Area of triangle 2:

Area = ½*by

b = 2 ft

h = 3 ft

Area of triangle 2 = ½*2*3 = 3 ft

✔️Area of rectangle = L × W

L = 11 ft

W = 3 ft

Area of rectangle = 11 × 3 = 33 ft

✅area of outdoor carpet = 4 + 3 + 33 = 40 ft²

4 0
3 years ago
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