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3 years ago

2x + 2y = -4 3x - 2y = 9

Mathematics

1 answer:

Murrr4er [49]3 years ago

5 0

Answer:

x = −y −2

Step-by-step explanation:

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What is m over pi=7.3? Thx

Verizon [17]

M=7.3pi
M= 7.3(3.14)

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4 years ago

True or false points are usually name by using a lowercase single letter

Scilla [17]

Answer:

true

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3 years ago

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The smallest square number which can be divisible by 11 and 5

Elena L [17]

Answer:

3025

Step-by-step explanation:

let's look at it in this concept.

For a number to be divisible by 11 and 5. it must be a multiple of the LCM of 11 and 5.

LCM of 11 and 5=55

therefore the number is 55x, where x is a positive integer.

it is a said that the number is a perfect square

therefore the square root of 55x must be an integer.

$\sqrt{55x} = \sqrt{5 \times 11 \times x}$

the smallest value of x to make 55x a perfect square is....

$x = 11 \times 5 = 55$

Therefore the number is.... .

$55x = 55(55) = 3025$

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3 years ago

jack ran 1.5 kilometers on the treadmill, then walked 475 meters before running another 2.5 kilometers how many kilometers did j

qaws [65]

We need first consider what data we have available:
a = run 1.5km
b = then run 2.3km
c = walk 475m
x = a + b + c = how many km he done on treadmill
before we go anywhere, we need to unify the units, we need to change meters to fraction of kilometers, kilo meant 1000, therefore:
1km = 1000m
475m / 1000m = 0.475km
now we can substitute:
x = a + b + c = 1.5km + 2.3km + 0.475km = 4.275km
we can round that up to first decimal point and then:
4.275km = 4.3km
answer is then:
jack done on the treadmill 4.275km or rounded up 4.3km

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3 years ago

If your car can travel 20 miles on 1 gallon of fuel how many litres were used to travel 130 miles? Step by step

Bezzdna [24]

Answer:2600 Gallons

Step-by-step explanation: You first have to take 130 and times it by 20 then times it by 1. make sure you add labels

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3 years ago