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pentagon [3]
3 years ago
9

Sunny earns $12 per hour delivering cakes. She worked for x hours this week. Unfortunately, she was charged $15 for a late deliv

ery on Tuesday. How much money did Sunny earn this week? WRITE YOUR ANSWER AS AN EXPRESSION.
Mathematics
2 answers:
dlinn [17]3 years ago
4 0
12x - 15

Since Sunny earns $12 per hour and she worked x hours, the total pay is 12x.
She was charged $15, so the total amount is 12x - 15.
PSYCHO15rus [73]3 years ago
4 0

Answer:

12x-15

Step-by-step explanation:

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If f(x)=4x-2 and g(x)=-8x+7, find h(x)=f(x) - g(x)
user100 [1]

Answer:

h(x)=12x-9

Step-by-step explanation:

We are given the two functions:

f(x)=4x-2\text{ and } g(x)=-8x+7

And we want to find:

h(x)=f(x)-g(x)

So, by substitution:

h(x)=(4x-2)-(-8x+7)

Simplify. Distribute:

h(x)=(4x-2)+(8x-7)

Rearrange:

h(x)=(4x+8x)+(-2-7)

Combine like terms. Hence:

h(x)=12x-9

3 0
3 years ago
Lindsay is 5 years younger than Mark. Seven years ago, the sum of their ages was 31.
Rashid [163]

Answer:

The present age of Mark is 25 years.

And present age of Lindsay is  20 years.

Step-by-step explanation:

Let us assume:

The present age of Lindsay = l

The present age of Mark = m

⇒ Age of Lindsay seven years ago =  (l -7) years

and Age of Mark seven years ago =  (m -7) years

According to question:

Lindsay is 5 years younger than Mark    ⇒   l = m  - 5

Seven years ago, the sum of their ages was 31  ⇒  (l-7) + (m -7)  = 31

So, the given set of equation are:

l = m  - 5    .........  (1)

(l-7) + (m -7)  = 31

⇒ ((m - 5) -7) + (m -7)  = 32  (from (1)

or, m -12 + m - 7  = 31

or, 2m = 31 + 19 = 50

⇒ m = 50 / 2  = 25, or m  = 25

Hence,the present age of Mark = 25 years

So,the present age of Lindsay = 25 - 5 = 20 years

7 0
3 years ago
Which shows two expressions that are equivalent to (-7)(-15)(-5)?
shusha [124]
B is the correct answer

C and D would be incorrect as 7 and 15 multiplies to 105 not 115
A is incorrect as -5 and -15 make a positive 75 not a negative 75
8 0
3 years ago
3-(2)/(9)b=(1)/(3)b-7
UkoKoshka [18]

Answer:

b=18

Step-by-step explanation:

8 0
3 years ago
Percent notation of 0.23
PIT_PIT [208]
The percent notation of 0.23 is 23% (\frac{23}{100}).

Hope this helps !

Photon
8 0
3 years ago
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