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
malfutka [58]
3 years ago
15

X - 7 = 13. Its for homework and this is my first time learning on this, Pls help

Mathematics
1 answer:
zalisa [80]3 years ago
4 0

Step-by-step explanation:

x -7 = 13

+7 +7

x = 20

hope this helps

You might be interested in
Mandy is selling pancakes and waffles at her diner. On Monday she sold a total of 300 pancakes and waffles. If she charges $3 pe
elena-s [515]

Answer:

Mandy sold 250 pancakes and 50 waffles.

Step-by-step explanation:

From the information given, you can say that the sum of pancakes and waffles is equal to 300:

x+y=300

Also, the statement indicates that she charges $3 per pancake, $1 per waffle, and made a total of $800 and you can express this as:

3x+y=800

You have the following equations:

x+y=300 (1)

3x+y=800 (2), where:

x is the number of pancakes she sold

y is the number of waffles she sold

Now, you can solve for x in (1):

x=300-y (3)

Then, you can replace (3) in (2):

3(300-y)+y=800

900-3y+y=800

900-800=2y

100=2y

y=100/2

y=50

Finally, you can replace the value of y in (3) to find x:

x=300-50

x=250

According to this, the answer is that Mandy sold 250 pancakes and 50 waffles.

5 0
2 years ago
Which ordered pair is a solution to the system of linear equations Y= -7x+2 and y=9x-1
evablogger [386]

\left\{\begin{array}{ccc}y=-7x+2\\y=9x-1\end{array}\right\Rightarrow 9x-1=-7x+2\\\\9x-1=-7x+2\ \ \ |+1\\9x=-7x+3\ \ \ |+7x\\16x=3\ \ \ \ |:16\\x=\dfrac{3}{16}\\\\\text{substitute the value of x to the second equation}\\\\y=9\cdot\dfrac{3}{16}-1\\\\y=\dfrac{27}{16}-\dfrac{16}{16}\\\\y=\dfrac{11}{16}\\\\\text{The solution is}\ \left(\dfrac{3}{16};\ \dfrac{11}{16}\right)

3 0
3 years ago
Ucini 12 VEGA LENA Gu 654 WENN WAREN Dita PHP The value of a share of stock decreases in value at a rate of $1.40 per hour durin
bekas [8.4K]

Answer: 1. x/h x h or $1.40/1h x 3.5h

2. $4.90

Step-by-step explanation: $1.40/1h x 3.5h= 1.4 x 3.5= 4.9

3 0
3 years ago
Mike and Jun Wen were practicing the long jump during track practice. Mike jumped 9.5 feet. Jun Wen jumped 11.75 feet. How much
andriy [413]
2.25 feet. 11.75 - 9.5 = 2.25.
3 0
3 years ago
Read 2 more answers
Ashton is depositing money into a checking account. After 3 months there is $120 in the account. After 6 months, there is $240 i
Talja [164]

The constant rate of change of the account is $40 or Increasing by $40 per month.

Step-by-step explanation:

Consider the provided information.

Joanne is depositing money into a bank account. After 3 months there is $120 in the account. After 6 months there is $240 in the account.

Rate of change is known as how one quantity change in relation to other.

The rate of change can be calculated as:

y2-y1/x2-x1  

Now use the above formula to calculated the rate of change.

240 - 120/6-3

120/3

40

Hence, the constant rate of change of the account is $40 or Increasing by $40 per month.

8 0
2 years ago
Other questions:
  • Which of the following employees has the greatest total employee compensation?
    5·2 answers
  • Suppose that you wish to cross a river that is 3900 feet wide and flowing at a rate of 5 mph from north to south. Starting on th
    14·1 answer
  • 70,000 is______ times as much as 700.
    10·2 answers
  • Rebecca and dan are biking in a national park for three days they rode 5 3/4 hours the first day and 6 4/5 hours the second day
    5·1 answer
  • How do you write 79% as a fraction, mixed number, or whole number in simplest form?
    6·2 answers
  • Write an expression to represent the product of 6 and the square of a number plus 15.
    6·2 answers
  • What is the circumference of the given circle in terms of pi?
    15·2 answers
  • . Use π ≈ 3.14 to estimate the circumference of the circle.
    15·2 answers
  • Assume that Brad makes an initial investment of $2,000. Use your formula to find the final balance of the savings account after
    5·1 answer
  • Daid1784 pls help (again)
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!