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4 years ago

Find two numbers whose sum is 9 and whose difference is -1

Mathematics

2 answers:

faltersainse [42]4 years ago

7 0

4 and 5 because four plus five is nine and five minus four is one

faltersainse [42]4 years ago

4 0

Answer:

4 and 5

Step-by-step explanation:

Make a system of equations:

x+y=9

x-y=-1

x=9-y

9-y-y=-1

9-2y=-1

-2y=-10

y=5

Since y=5, x must be 4 since 4+5=9 and 4-5=-1

Hope this helped!

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Solve using a system of equations. Tickets to a local movie were sold at $6.00 for adults and $4.50 for students. If 110 tickets

Marrrta [24]

Answer:

The number of adults tickets is 80 and the number of students tickets is 30

Step-by-step explanation:

Given as :

The tickets price for adults = $6.00

The tickets price for students = $4.50

Total number tickets were sold = 110

Total Price of 110 tickets = $615.00

Now,

Let The number of adults tickets sold = A

The number of students tickets sold = S

So, according to question

A + S = 110

And 6 A + 4.5 S = 615

Or, 6 A + 6 S = 660 .....1

6 A + 4.5 S = 615 ......2

Solving the equations

( 6 A + 6 S ) - ( 6 A + 4.5 S ) = 660 - 615

Or, ( 6 A - 6 A ) ( 6 S - 4.5 S ) = 45

or, ( 6 S - 4.5 S ) = 45

or, 1.5 S = 45

∴ S = $\frac{45}{1.5}$

I,e S = 30

Put the value of S in eq 1

So, 6 A + 6 × 30 = 660

Or, 6 A = 660 - 180

Or 6 A = 480

∴ A = $\frac{480}{6}$

I.e A = 80

Hence The number of adults tickets is 80 and the number of students tickets is 30 . Answer

4 0

3 years ago

Find the missing side length in the right triangle.

Setler [38]

Answer:

5.83

Step-by-step explanation:

Pythagorean Theorem a^2 + b^2 = c^2

$5^{2} + 3^{2} = 34\\\sqrt{34} = 5.83$

7 0

3 years ago

Given the functions below, find (h+g) (10).<br> g(x) = 3x + 3<br> h(x) = - 4x + 1

alexandr402 [8]

Answer:

-6

Step-by-step explanation:

Find the sum of these two functions when x equals 10.

h(10) + g(10)

- 4(10) + 1 + 3(10) + 3

-40 + 1 + 30 + 3

Add the numbers.

-39 + 30 + 3

-6

The value of the function (h+g)(10) is -6.

6 0

3 years ago

1. Display the data in a matrix A with rows indicating years. What is element a 14?

mina [271]

Answer:

LOL i don't even know

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

PLS HELP ME WILL MARK BRAINLIEST TO BEST ANSWER!

ivann1987 [24]

Answer:

The length of the longer base is a. 33 in

Step-by-step explanation:

This is true because if the longer base is 3 more inches than 2 times the amount of the shorter base, all you have to do is 15 x 2 + 3 = 33 in

Hope it helps! =)

7 0

3 years ago

Read 2 more answers