All categories

3 years ago

6. Ziad has 26 money bills in his

Mathematics

2 answers:

valkas [14]3 years ago

8 0

Answer:

1000 bills = 7

500 bills = 19

Step-by-step explanation:

x=number of 1000 bills

y= number of 500 bills

(you can even invert them, no problem)

the system is

x + y = 26

1000x + 500y = 16500

therefore

x=26-y

using this value in the next equation

1000*(26-y) + 500y = 16500

26000 - 1000y + 500y = 16500

-500y = - 9500

y=9500/500= 19

x=26-19= 7

solniwko [45]3 years ago

5 0

Answer:

you would divide 16500 by 500 and 1000

Step-by-step explanation:

so i got 12 and 16.5

You might be interested in

If lines A and B are parallel and angle 6 has a measure of 127°, what is the measure of angle 8?

RUDIKE [14]

If line A and B are parallel, then both angle 6 and 8 are corresponding angles, which mean they are the same.

SInce angle 6 is 127 degrees, then angle 8 is also 127 degrees

8 0

2 years ago

Need help with this asap

ipn [44]

Answer:

SSS

Step-by-step explanation:

All sides with the same amount of lines are congruent

5 0

2 years ago

If you don’t help me your a criminal

STALIN [3.7K]

Answer:

take angle U as reference angle

using sine rule

sin U=opposite/hypotenuse

sinU=42/42

sin U=1

sin 90=1

therefore the value of U is 90 degree

Step-by-step explanation:

6 0

2 years ago

Which graph best represents the relationship between time and the average mass?

natita [175]

The second graph or the letter B

3 0

2 years ago

An arch is in the shape of a parabola. It has a span of 100 feet and a maximum height of 25 ft.

faltersainse [42]

Answer:

$y=-\frac{1}{100}(x-50)^2+25$

the height of the arch 10 feet from the center is 24 feet

Step-by-step explanation:

An arch is in the shape of a parabola. It has a span of 100 feet, the vertex lies at the center 50 and the maximum height of 25 ft.

Vertex at (50,25)

vertex form of the equation is

$y=a(x-h)^2+k$ , (h,k) is the center

$y=a(x-50)^2+25$

the parabola starts at (0,0) that is (x,y)

$0=a(0-50)^2+25$

subtract 25 from both sides

$-25=a(-50)^2$

$-25=a(2500)$

divide both sides by 2500

$a=-\frac{1}{100}$

$y=-\frac{1}{100}(x-50)^2+25$

the height of the arch 10 feet from the center.

center is at 50, 10 feet from the center so x=40 and x=60

$y=-\frac{1}{100}(40-50)^2+25$

y=24

the height of the arch 10 feet from the center is 24 feet

4 0

2 years ago