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creativ13 [48]
3 years ago
13

12-n/7=-1 what y’all think the answer is

Mathematics
2 answers:
mestny [16]3 years ago
8 0

Answer:

19

Step-by-step explanation:

12-n/7 = -1

Cross multiply

We have 12-n = -7

Collect like terms

12 + 7 = n

Therefore n = 19

mylen [45]3 years ago
3 0

Answer:

n=91

Explain:

mutiply both sides of the equation by 7: 84-n=-7

move constant to the right and change its sign: -n= -7 - 84

find the diffrence= -n= -91

change the signs: n=91

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If the original price of a watch is $130 and there is a 10% tax, what is the price of the watch, including tax?​
kvasek [131]

Answer:

$143.00

Step-by-step explanation:

130+10%(13.00)=143.00

7 0
4 years ago
At a grocery store,39 out of 60 customers use a shopping cart. What percent of the customers use a shopping cart?​
Savatey [412]

Answer:

39 is 65% of 60

65% use a shopping cart.

5 0
3 years ago
Select the problems which show the correct answers. (1.12 x 105) (6.06 x 105) Answer: 6.79 x 1010 (2 x 101)(3.0 x 101) Answer: 6
Arisa [49]
Since multiplication is commutative, we can rearrange the problem: 
(1.12*10^5)(6.06*10^5) = (1.12*6.06)(10^5*10^5)
Using the properties of exponents, we have:
(1.12*6.06)(10^10)
\\=6.7872*10^10

Again, multiplication is commutative, so we rearrange the problem; then we use the product property of exponents:
(2*10^1)(3*10^1)
\\=(2*3)(10^1*10^1)
\\=6*10^2

(2.775*10^-^4)(4.775*10^4)
\\=(2.775*4.775)(10^-^4*10^4)
\\=(2.775*4.775)(10^0)
\\=(2.775*4.775)(1)
\\=2.775*4.775=13.250625=1.3250625*10^1

5(8.14*10^2)=(5*8.14)(10^2)=40.7*10^2=4.07*10^3
6 0
4 years ago
Read 2 more answers
I need help on this
nasty-shy [4]

Answer:

the answer would be -3/4

Step-by-step explanation:

(-4,3)(0,0)

y2-y1/x2-x1

0-3/0+4

-3/4


8 0
3 years ago
2. Solve each equation. Check your solutions.<br> b. 5 +<br> - 16
Ber [7]

Answer:

Step-by-step explanation:

-11

4 0
3 years ago
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