3 years ago

Write the expanded notation for 15,729?

Mathematics

1 answer:

pshichka [43]3 years ago

8 0

Step-by-step explanation:

15,729 = 10 000 + 5 000 + 700 + 20 + 9

= (1 x 10000) + (5 x 1000) + (7 x 100) + (2 x 10) + (9 x 1)

We can also write it like this :

(1 x 10⁴) + (5 x 10³) + (7 x 10²) + (2 x 10¹) + (9 x 10⁰)

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A group of 52 people attend a ball game. There were three times as many men as women in the group. Write and solve a system of e

kkurt [141]

Answer:

lets call the children, c, and call adult, a,

c+a= 52 eq 1: a=52-c

c=3a eq 2

take a's value from eq 1 and plug it into eq 2

c=3(52-c)

c=156-3c

4c=156

c=39 the number of children that attended the ball game.

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Ann thought of a number N, multiplied it by 5 and added 7. Then she told the result R to Jim. side note R=5n+7 using the previou

Neporo4naja [7]

Answer:

the answer is (R-7)÷5

Step-by-step explanation:

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3 years ago

4x + 2y = 8 16x - y = 14

lys-0071 [83]

Equation 1) 4x + 2y = 8
Equation 2) 16x - y = 14

Multiply all of equation 2 by 2.

2) 2(16x - y = 14)

2) 32x - 2y = 28
1) 4x + 2y = 8

Add equations together.

36x = 36

Divide both sides by 36.

x = 1

Plug in 1 for x in the first equation.

4x + 2y = 8

4(1) + 2y = 8

4 + 2y = 8

Subtract 4 from both sides.

2y = 8 - 4

2y = 4

Divide both sides by 2.

y = 4/2

y = 2

So, x = 1, y = 2

~Hope I helped!~

7 0

3 years ago

. 25% of 900 = 225, 25% is called____ *

posledela

Answer:

25% is called a quarter of 900

Step-by-step explanation:

${ \tt{25\% = \frac{25}{100} = \frac{1}{4} }} \\$