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
Ad libitum [116K]
2 years ago
10

Nancy and Kevin collect coins. Nancy has x coins. Kevin has 9 coins fewer than five times the number of coins Nancy has. Write a

nd simplify an expression for the total number of coins Nancy and Kevin have.
Mathematics
1 answer:
Alexus [3.1K]2 years ago
3 0

Answer:

x + (5x-9)

Step-by-step explanation:

x stands for the number of coins Nancy has

Kevin has 9 less than 5 times what Nancy has, so his part of the expression is 5x-9

To find the total number of coins they have, you have to add Nancy's number of coins x plus Kevin's number of coins 5x-9

x + (5x-9)

But you have to put parentheses around Kevin's 5x-9 so that part of the expression is calculated first, as per order of operations

You might be interested in
40 can be written as the product of its prime factor like this
Ganezh [65]

100 as a product of its prime factors:

100=2 \times 2 \times 5 \times 5

100=2^2 \times 5^2

8 0
3 years ago
Read 2 more answers
Match each pair of points to the equation of the line that is parallel to the line passing through the pointsB(5,2) and C(7,-5)Y
a_sh-v [17]

we will select each points and find equation of line

option-A:

points are B(5,2) and C(7,-5)

x1=5,y1=2 , x2=7 , y2=-5

Firstly, we will find slope

m=\frac{y_2-y_1}{x_2-x_1}

we can plug values

m=\frac{-5-2}{7-5}

m=-3.5

we can use point slope form of line

y-y_1=m(x-x_1)

we can plug values

y-2=-3.5(x-5)

y=\frac{-7}{2}x+\frac{39}{2}...........Answer

option-B:

points are D(11,6) and E(5,9)

x1=11,y1=6 , x2=5 , y2=9

Firstly, we will find slope

m=\frac{y_2-y_1}{x_2-x_1}

we can plug values

m=\frac{9-6}{5-11}

m=-0.5

we can use point slope form of line

y-y_1=m(x-x_1)

we can plug values

y-6=-0.5(x-11)

y=\frac{-1}{2}x+\frac{23}{2}...........Answer

option-C:

points are F(-7,12) and G(3,-8)

x1=-7,y1=12 , x2=3 , y2=-8

Firstly, we will find slope

m=\frac{y_2-y_1}{x_2-x_1}

we can plug values

m=\frac{-8-12}{3+7}

m=-2

we can use point slope form of line

y-y_1=m(x-x_1)

we can plug values

y-12=-2(x+7)

y=-2x-2...........Answer

option-D:

points are H(4,4) and I(8,9)

x1=4,y1=4 , x2=8 , y2=9

Firstly, we will find slope

m=\frac{y_2-y_1}{x_2-x_1}

we can plug values

m=\frac{9-4}{8-4}

m=1.25

we can use point slope form of line

y-y_1=m(x-x_1)

we can plug values

y-4=1.25(x-4)

y=\frac{5}{4}x-1...........Answer

option-E:

points are J(7,2) and K(-9,8)

x1=7,y1=2 , x2=-9 , y2=8

Firstly, we will find slope

m=\frac{y_2-y_1}{x_2-x_1}

we can plug values

m=\frac{8-2}{-9-7}

m=-\frac{3}{8}

we can use point slope form of line

y-y_1=m(x-x_1)

we can plug values

y-2=\frac{3}{8}(x-7)

y=\frac{3}{8}x-\frac{5}{8}...........Answer

option-F:

points are L(5,-7) and M(4,-12)

x1=5,y1=-7 , x2=4 , y2=-12

Firstly, we will find slope

m=\frac{y_2-y_1}{x_2-x_1}

we can plug values

m=\frac{-12+7}{4-5}

m=5

we can use point slope form of line

y-y_1=m(x-x_1)

we can plug values

y+7=5(x-5)

y=5x-32...........Answer



7 0
3 years ago
Read 2 more answers
For every 6kg a child's weight, pediatricians prescribe 17mg of acetaminophen. If Lexie weighs 48 kg, how many milligrams of the
Finger [1]
The answer will be 136mg
48/6=8
8*17=136mg
5 0
3 years ago
What is the answer for this?
anygoal [31]

6m and 15m have a GCF of 3m, so divide both of them by 3m to simplify the fraction.

\frac{6m/3m}{15m/3m}=\frac{2}{5}

4 0
3 years ago
Read 2 more answers
In a sample of 62 cups, the average diameter was found to be 3.07in. with a standard deviation of 0.21. Give a point estimate fo
Marina CMI [18]

Answer:

Population standard deviation (σ) = 0.3 in

Step-by-step explanation:

Sample mean = 3.07 in

Sample standard deviation (s) = 0.21 in

Sample size (n) = 62 cups

Population standard deviation (σ) = ?

The point estimate for the population standard deviation is given by sample standard deviation divided by the square root of the sample size:

\sigma = \frac{s}{\sqrt{n}}\\\sigma = \frac{0.21}{\sqrt{62}}\\\sigma = 0.03\ in

6 0
3 years ago
Other questions:
  • Drake has 3 Grammy wins and little Wayne has 5 Grammy wins. select all proportional relationships tat have the same ratio to tha
    12·1 answer
  • Work out 4/9 + 2/9 and simplify where possible (it isnt 6/9)
    5·1 answer
  • Which trigonometric values equal 0? Check all that apply.
    13·2 answers
  • PLS ANSWER NOW WILL EARN BRAINLIEST IF RIGHT
    13·1 answer
  • HELP ME
    15·2 answers
  • Three more than the product of two and a number
    11·1 answer
  • I need help...............................
    13·1 answer
  • Help please! Thank you!!
    5·2 answers
  • A Family spent a total of $73.75 on movie tickets and snacks. Each ticket cost $12.50, and each snack cost $4.75. If the family
    14·2 answers
  • 22. Using the graph, state the approximate
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!