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
olga55 [171]
3 years ago
15

Sklyer has 15 less than twice as many customers as when she started selling newspapers. She now has 155 customers. How many did

she have when she started?
Mathematics
2 answers:
arlik [135]3 years ago
8 0
155 = 2x -15
170 = 2x
85 = x

She had 85 when she first started. 

natka813 [3]3 years ago
7 0
She started with 70

hope it helps
You might be interested in
Multi digit whole number and decimal fraction operations
mart [117]
People need to start making the points a bigger value
7 0
3 years ago
The curve with equation y=ax^2+bx has a gradient of 3 at the point (2,-2). Find the values of a and b.
Airida [17]

Answer:

a = 2, b = - 5

Step-by-step explanation:

Given

y = ax² + bx

\frac{dy}{dx} is the measure of the slope at x = a

Differentiate each term with respect to x using the power rule

\frac{d}{dx}(ax^{n} ) = nax^{n-1}

\frac{dy}{dx} = 2ax + b, hence

2ax + b = 3 at (2, - 2)

Substitute x = 2 into \frac{dy}{dx}

4a + b = 3 → (1) and substitute x = 2 into y

4a + 2b = - 2 → (2)

Subtract ( 1) from (2)

b = - 2 - 3 = - 5

Substitute b = - 5 into (1)

4a - 5 = 3 ( add 5 to both sides )

4a = 8 ( divide both sides by 4 )

a = 2

7 0
3 years ago
Helps, is it 64 111 or 90?​
charle [14.2K]

Answer:

111

Step-by-step explanation:

7 0
3 years ago
Help please with this math question
Svetllana [295]
If the new technology innovation improves the production by 10%, they are increasing the amount of cars made by 10%.

Originally, 120 cars were made per day.

10% of 120 is 12.

Since the amount of cars made per day was increased by 12, we can add 12 to 120 to get 132 cars made per day (as the new unit rate).

The question asks how many cars can be produced in 5 days (after the car production increase). We can get the answer by multiplying our new daily amount of cars by 5: 132 times 5.

132 times 5 = 660

So, 660 cars can be produced in the factory in 5 days.
5 0
1 year ago
503,497 and 26,475 the value of 7 in?is ?times the value of 7 in ?
Vlad1618 [11]
1 times greater than 503,497
4 0
3 years ago
Other questions:
  • 5TH GRADE MATH TESTING PEOPLE​
    14·2 answers
  • An artist used silver wire to make a square that has a perimeter of 40 inches. She then used copper wire to make the largest cir
    13·1 answer
  • What is 12 times 2 times 5 plus 2​
    5·2 answers
  • The solutions of x^2= 16x-28
    12·2 answers
  • 24. Lynn bought a $300,000 house, paying 10% down, and financing the rest at 6%
    12·1 answer
  • What is the answer 613 + 6y =xy=8.6
    15·1 answer
  • Brian buys 1 pack of baseball cards to add to the 2 cards his friend gave him. then his mother gives him 2 more packs as a speci
    7·1 answer
  • Manita carries a box of mass 40 kg. What is the weight of the box?( g=9.8m/s)<br>​
    8·1 answer
  • What is the value of x in the solution to this system of equations?
    8·1 answer
  • Someone pls help me ASAP! Express the following as the sum of its partial fraction: 2x+4/x(x+2)(x-4)​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!