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vodomira [7]
3 years ago
15

Jenny bought a wok for £9.60 in a 20% off sale. What was the price of the wok before the sale?

Mathematics
1 answer:
emmasim [6.3K]3 years ago
4 0

Answer:

£12

Step-by-step explanation:

9.60 = 80% times y.

9.60 = 0.8y

Then, divide each side by 0.8 to get the equation in shape to solve for y.

y = 9.60/0.8

y=12

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Ervin sells vintage cars. Every three months, he manages to sell 13 cars. Assuming he sells cars at a constant rate, what is the
Vladimir [108]
Ervin sells 13 cars per 3 months so 13/3=4.3 cars per month. 

this means that 

___month___     ___cars sold___

          1                         4.3
          2                     2*4.3
          3                     3*4.3
          :                           :
          n                     n*4.3

the linear function representing the cars sold per month is f(n)=4.3*n

(Practically, this means that the expected number of cars sold after n months is a whole number close to 4.3*n.)

Answer:

the slope is 4.3 (13/3)

7 0
3 years ago
Inessa is making ice tea. She has ice cubes which she uses to cool the ice tea. Each ice cube lowers the temperature of the liqu
uranmaximum [27]

Answer:

  -12

Step-by-step explanation:

6 times -2 is -12.

_____

"Lowers by 2°" can be represented by an integer of -2.

5 0
3 years ago
Please answer!!!!<br> Express (x + 9)2 as a trinomial in standard form.
Ghella [55]

Answer:

x² +18x +81

Step-by-step explanation:

(a+b)²=a²+b²+2ab

(x+9)² = x²+9²+2*x*9= x² +18x +81

4 0
3 years ago
Kyle is stringing a necklace with beads he puts black beads on 5/8 of the string and white beads on 1/4 of the string Kyle think
Alexeev081 [22]

Answer:Kyle’s claim is not reasonable

Step-by-step explanation:

Total length of the string of the necklace that Kyle covered with black beads is 5/8.

Total length of the string of the necklace that Kyle covered with white beads is 1/4.

Total length of the string of the necklace that Kyle covered with black beads and white beads is would be

1/4 + 5/8 = 7/8 = 0.875

Kyle thought that he will cover 6/12 of the string with beads. 6/12 = 0.5

It means that he covered more than 6/12. Kyle's claim was wrong

3 0
3 years ago
Melissa has more than 40 coins in her collection which inequality the nuber of coinsin melissas collection
nata0808 [166]

Answer:

X > 40

Step-by-step explanation:

Given that:

Let number of coins in her collection is more Than 40

To represent the number of coins in Melissa's collection as an inequality :

Let total number of items in her collection = X

Coins in her collection > 40

Hence, coins in her collection can be represented as :

X > 40

4 0
3 years ago
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