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anyanavicka [17]
3 years ago
13

What is the value of x and y

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
6 0

Answer:

x=3, y=3

Step-by-step explanation:

If we plug in 3 for each variable, their sum is 6, and the first equation will be true.

Sholpan [36]3 years ago
4 0

Answer:

x=y=3

Step-by-step explanation:

Given Equation:

2x+3y=15   Equation:1

x+y=6        

or x=6-y      Equation:2

Using Substitution method, put the value of 'x' in equation:1

2x+3y=15

2(6-y)+3y=15\\\\2(6)-2(y)+3y=15\\\\12-2y+3y=15\\\\12+y=15\\\\

Subtracting '12' both sides:

12+y-12=15-12\\\\y=15-12\\\\y=3\\\\

Putting value of 'y' in equation:2

x=6-y

x=6-3\\\\x=3

So, the values are:   x=y=3

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A family goes out to eat. The meal costs $44. The sales tax rate is 9%. They leave a 20% tip. How much did they spend?
REY [17]

Answer:

$56.76

Step-by-step explanation:

$56.76 because 20% of 44 is 8.80 which is the tip and 9% of 44 is 3.96 which is the tax rate giving you an answer of $56.76. Hope this helps!

6 0
3 years ago
What is the answer to his question
horsena [70]

Answer:

A. 720 per hour

Step-by-step explanation:

1200+ <em>720</em> + 720 + <u>360</u> =3000

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8 0
3 years ago
Please can someone help me ill mark brainliest
kramer
#5 is 4, #6 is graph A, and #7 is graph B. I hope this helped, Please mark as brainliest because I am 3 more away from the next level.
7 0
3 years ago
The sum of a number divided by 2 and 7 is equal to 3
n200080 [17]
I would say no but i don't know how to do your problem by how your describing it sorry :(
7 0
2 years ago
Read 2 more answers
Does somebody knows how to do this problem?
pshichka [43]

Answer:

Angle Q is 51°

Angle R is 96°

(x=5 and the exterior angle is 84°)

Step-by-step explanation:

Exterior Angle Theorem says that angle that's outside the triangle (extend a side and see the angle between the side extension and the side) IS Equal to the sum of the two angles that are farther away.

17x - 1 = 33 + 10x + 1

Get all the x's on one side of the equation.

17x-10x - 1 = 33 + 10x-10x+1

7x - 1 = 33 + 1

7x - 1 = 34 add 1 to both sides

7x = 35 divide by 7

7x/7 = 35/7

x = 5

Not finished ! Find Angle Q

10x+1 = 10(5)+1= 51°

Angle PRQ is insidethe triangle. All the angles of a triangle add up to 180°

33° + 51° + R = 180°

84° + R = 180°

R = 96°

6 0
2 years ago
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