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nexus9112 [7]
1 year ago
15

The sum of two numbers is 55 and the difference is 15 what are the numbers

Mathematics
2 answers:
Lady_Fox [76]1 year ago
7 0

x + y = 55 \\ x - y = 15 \\  \\ 2x = 70 \:  \:  \:  \:  \:  \: x = 35 \\ y = 55 - x = 55 - 35 = 20

muminat1 year ago
3 0

Answer:

55-15=40 is the correct answer

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the length of rectangle exceeds its breadth by 4 cm if the length and breadth is increased by 3 cm the area of the new rectangle
gizmo_the_mogwai [7]

Answer:

The length and breadth are 14 cm and 10 cm

3 0
3 years ago
anyone please help asap!!! The theater holds 250 people last last nights performance was sold out, students under the age of 16
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there were 60 people that are under 16 and 190 people above 16.

4 0
3 years ago
A rectangular prism with length width and height has a volume of l w h what is the volume of a prism which has a base of 5 m by
Nady [450]

v = l \: w \: h
v = 5 \times 3 \times 4
v = 15 \times 4
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4 0
3 years ago
What is the input-output table for the function f(x) = 3x^2-x+4
mojhsa [17]

Answer:

Step-by-step explanation:

The input-output table can be made by putting value of x and finding the value of f(x)

f(x) = 3x^2-x+4

f(0) = 3(0)^2-0+4 = 0-0+4 = 4

f(1) = 3(1)^2-1+4 = 3-1+4 = 2+4 =6

f(2) = 3(2)^2-2+4 = 3(4)-2+4 = 12-2+4 = 10+4 = 14

f(3) = 3(3)^2-3+4 = 3(9)-3+4 = 27-3+4 = 24+4 = 28

So put value of x and find f(x) and fill the input-output table.

x  f(x)

0   4

1    6

2   14

3    28

3 0
3 years ago
Solve by using any method of substitution<br><br>4 +8x = y <br>6x - y = 2
Bumek [7]

Answer:

(-3,-20)

Step-by-step explanation:

4 +8x = y ...... equation (1)

6x - y = 2 ........equation(2)

from equation 2

6x - y = 2

6x -(4+8x) =2

6x - 4 + 8x = 2

    +4              +4

6x - 8x = 6

-2x=6

divide by -2

x= -3

put x in equation (1) to solve for y

4 + 8x = y

4+8(-3)=y

4-24=y

-20=y

y= -20

solution = (-3,-20)

8 0
3 years ago
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