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kobusy [5.1K]
3 years ago
9

Answer what Property 1) 17+0=17 2)-16*1=-16 3)10*1/10=1 EXPLAIN TOO

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
7 0
17 + 0 = 17
additive identity property....which basically states if u add a number to 0, it results in the original number
==============
-16 * -1 = -16
multiplicative identity property...which basically states if u multiply a number by 1, it results in the original number
==============
10 * 1/10 = 1
inverse property of multiplication...which states that any number multiplied by its reciprocal will equal 1. The reciprocal of a number can be found by just flipping the number.
examples :
10 (or 10/1)...its reciprocal is 1/10
4/5...its reciprocal is 5/4
-2 (or -2/1)...its reciprocal is -1/2

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james' daily wage was $5 more than Davis's. Although James worked 3 days less than David, they earned $180 each. Find the number
zalisa [80]

Answer: 9 days

Step-by-step explanation:

Let x represent James' daily wage

James' daily wage was $5 more than Davis's. It means that Davis's daily wage will be $(x-5)

Let y represent number of days that James worked. James worked 3 days less than David. It means that the number of days that Davis worked would be (y + 3) days

they earned $180 each. Total amount of money earned by either of of them is the product of wage and the number of days worked.

Since James earned $180, then

180 = xy - - - - - - - - 1

Since Davis also earned $180, then

180 = (x - 5)(y + 3)

xy +3x -5y -15 = 180 - - - - - - - - 2

Substituting xy = 180 into equation 2

It becomes

180 + 3x - 5y -15 = 180

3x - 5y = 180 - 180 + 15

3x - 5y = 15 - - - - - - -3

From equation 1, x = 180/y

Substituting x = 180/y into equation 3, it becomes

3 × 180/y - 5y = 15

540 - 5y^2 = 15y

5y^2 + 15y -540 = 0

Dividing through by 5

y^2 + 3y -108 = 0

y^2 + 12y - 9y -108 = 0

y(y + 12) - 9(y + 12) = 0

y + 12 = 0 or y - 9 = 0

y = -12 or y = 9

Since the number of days cannot be negative, then,

Number of days that James worked will be 9 days

8 0
3 years ago
What is the 32nd term of the arithmetic sequence where<br> a1 = 14 and a13 = -58?
liq [111]
The nth term of an arithmetic sequence is found from:
n_{th}\ term=a+(n-1)d
Plugging in the given values, we get for the 13th term:
-58=14+12d
12d =-58 - 14 = -72
d = -6
So, the 32nd term is:
a_{32}=14+(32-1)-6=-172
5 0
3 years ago
Anyone know the answer??
Xelga [282]

Answer

3.5 x 10^{3}

Step-by-step explanation

3 0
3 years ago
At a school, 1 out of every 3 girls who tried out for basketball made the
nikdorinn [45]

Answer:

1:2

Step-by-step explanation:

because only one gets into the team

and the remaining two don't make the team

8 0
3 years ago
What is the product of (3a + 2)(4a2 - 2a + 9)?
natka813 [3]

Answer:

12a³+2a²+23a+18

Step-by-step explanation:

(3a+2)(4a²-2a+9)=

12a³-6a²+27a+8a²-4a+18=

12a³+2a²+23a+18

If you need more explanation, reply to this answer.

4 0
3 years ago
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