1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anestetic [448]
3 years ago
8

Find the sum −1/2(7z+4)+15(5z−15)

Mathematics
2 answers:
nlexa [21]3 years ago
7 0

Answer:\frac{143x-453}{2}

sattari [20]3 years ago
4 0

Answer: \frac{143x - 453}{2}

Step-by-step explanation:

You might be interested in
Rearrange to make x the subject of 4(x-3)/a=y
IrinaVladis [17]

Answer: x = a*y + 3

Step-by-step explanation:

To make x the subject of the equation, first, we open the bracket

4x - 12/a = y

Then cross multiply:

4x - 12 = a * y ( a*y means the product of the two variables)

Add 12 to both sides of the equation

4x = a*y + 12

Divide both sides by 4 to get the value of x

x = a * y + 12/4

x = a*y + 3

I hope this helps.

4 0
3 years ago
Candle food is on sale for 20% of the original price what is the discount of the key if the original price is $1.35
Evgesh-ka [11]

Hi there!

To calculate a discount or a mark-up in the price of a retail item, you need to multiply the given price of the item by the percentage, like so:

1.35 × 0.2 = 0.27

Then you add or subtract as necessary. In your case you would subtract since you are trying to find a discount price.

1.35 - 0.27 = 1.08

So the final price of the product after the discount is $1.08

Your friend, ASIAX

5 0
3 years ago
Help quick Given f(x) and g(x) = k⋅f(x), use the graph to determine the value of k.
Salsk061 [2.6K]

Answer:

k = -3

Step-by-step explanation:

F(x) has a positive slope

g(x) has a negative slope

Let x = -3

The y value goes from 1 to -3

g(x) = k⋅f(x)

-3 = k(1)

-3 = k

6 0
3 years ago
Eight less than the product of two and a number x xx.
avanturin [10]

2x -8 that’s how u write it in an expression

6 0
3 years ago
Read 2 more answers
A giant hummingbird can flap its wings at a rate of 13 flaps per second, how many times
antoniya [11.8K]

Answer:

780 flaps per second

Step-by-step explanation:

just multiply 13×60

8 0
3 years ago
Other questions:
  • Which equation models the trend line? y = -1.3x + 2 y = 1.3x + 2 y = -1.3x - 2 y + 1.3x - 2
    7·1 answer
  • The length of the table is 9 feet . Express the length in inches
    8·2 answers
  • Find two SQUARE numbers that have a sum of 130
    5·1 answer
  • $4.29 per pound for ham OR 2 pounds of ham for $8.50
    7·2 answers
  • The elevation of Mt. Everest is 29,028 feet. The elevation of the Dead Sea is –485 feet. What is the difference in the elevation
    7·2 answers
  • Which relation is a function? {(1, 2), (2,4), (−1, 2), (0,3)}
    7·1 answer
  • Fractorise the following (a-b)²+(a-b)​
    9·1 answer
  • Steven wants to buy a $520 bicycle steven has no money saved but will be able to deposit $45 into a savings account when he rece
    9·1 answer
  • A new car is purchased for 20700 dollars. The value of the car depreciates at 7.25% per year. To the nearest year, how long will
    14·1 answer
  • Express each of the following as a fraction in its simplest form
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!