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garik1379 [7]
3 years ago
9

What is x when 5x 3y = 19.?

Mathematics
1 answer:
Kay [80]3 years ago
8 0
I am assuming the x is supposed to mean multiplication...
5 x 3y = 19  Simplify

15y = 19  Divide

15y /15= 19/15
y = 1.2666

or rounded its 1.3
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Carlos went to gas station A and paid $54 for 25 gallons. Sasha went to gas
RideAnS [48]

Answer: Sasha

Step-by-step explanation:

carlos- 54 divided by 25 equals 2.25 dollars for each gallon

sasha- 31.25 divided by 15 equals 2.083333(3 repeats)

They are both really close on price, but sasha's is cheaper

5 0
3 years ago
Rationalise the denominator.<br>1/√5+√2​
Pani-rosa [81]

Answer:

Exact Form:

  √5 + 5√2

__________

       5

Decimal Form:

1.86142715

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Step-by-step explanation:

N/A

3 0
3 years ago
Read 2 more answers
Please help me i cannot understand these Questions
emmainna [20.7K]

Answer:

In the last task, the result is 17+3x/6

Step-by-step explanation:

X+5/3 - 2x-7/6 + x/2

2(x+5)-(2x-7)+3x <em>/</em><em>6</em>

2x+10-2x+7+3x <em>/</em><em>6</em>

17+3x/6

I dunno this task above, I hope this one is correct :))

6 0
3 years ago
If Jaime is riding at 14 miles per hour and Cori is riding at 0.40 km per minute, how far will each of them bike in two hours? 1
natali 33 [55]

Answer:

Jaime: d = 45.08\ km

Cori: d = 48km

Step-by-step explanation:

Given

V_1 = 14\ miles/hour

V_2 = 0.40\ km/hour

Time\ (t)\ = 2\ hours

Solving Jaime Distance;

d = vt

Substitute values for v and t

d = 14\ miles/hour * 2\ hours

d = 28\ miles

Convert to kilometer

d = 28 * 1.61\ km

d = 45.08\ km

Solving Cori Distance:

d = vt

Substitute values for v and t

d = 0.40km/min * 2\ hours

Convert hours to minute

d = 0.40km/min * 2 * 60\ min

d = 0.40km * 2 * 60

d = 48km

3 0
3 years ago
Firefighters need to use a 60-foot ladder to save a child. She is 50 feet above street
mr_godi [17]

Answer:

The ladder must be placed at a distance of 33.2 feet from the bottom of the building

Step-by-step explanation:

From what we have here, we are looking at a right angled triangle with the hypotenuse which is the length of the ladder

The height of the child is 50 feet from ground level

So we need to get the third side of the triangle

We can get this by considering the use of Pythagoras’ theorem

This will give us the length of the third side of the triangle

From Pythagoras’ the square of the hypotenuse is equal the sum of the squares of the two other sides

Let the unknown side be x

Thus;

60^2 = 50^2 + x^2

x^2 = 60^2 - 50^2

x^2 = (60-50)(60+50)

x^2 = (10)(110)

x^2 = 1100

x = square root of 1100

x = 33.166

To the nearest tenth, this is 33.2 feet

3 0
3 years ago
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