Answer:
18
Step-by-step explanation:
15 x 2 = 30
30 - 12 = 18
18 girls are in his class
Evaluate if x=5 x^2+10
Answer:
[tex]35[/tex]
Step-by-step explanation:
To evaluate the expression:
[tex]x^2+10[/tex]
First, consider the given information:
[tex]x=5[/tex]
Substitute the given value of [tex]x[/tex] into the expression:
[tex]5^2+10[/tex]
(Note that [tex]5^2[/tex] is the same as [tex]5*5[/tex])
[tex]5*5=25[/tex]
[tex]5^2=25[/tex]
Add:
[tex]25+10=[/tex]
[tex]35[/tex]
-
We can check our work by setting our solution equal to the initial expression:
[tex]x^2+10=35[/tex]
Substitute [tex]x[/tex] for its given value:
[tex]5^2+10=35[/tex]
Simplify [tex]5^2[/tex]:
[tex]25+10=35[/tex]
Add:
[tex]35=35[/tex]
Since both sides of the equation are equal, our solution is correct!
Answer:
35
Step-by-step explanation:
Because X=5, the equation is literally just asking 5x5=10. So, following the order of operations, I would do 5x5 first which equals 25 plus 10. Since 25+10=35. The answer is 35. Hope this helps! :p
The Hendersons went on a driving vacation. They decided to travel 1/3 of the distance on the first day. Owing to bad weather, they had to stop for the night having gone only 1/4 of the distance to the one-third point.
What fraction of the total distance did they travel the first day? Show your work and reduce to lowest terms.
Howie works at a petting zoo. He fed a piglet 1/5 of a bottle of milk, then gave 3/4 of what was left to a calf.
How much of the bottle of milk did the calf drink? Show your work and reduce to lowest terms.
Nathan used 2(5/6) loaves of bread to make sandwiches for a lunch. He made equal numbers of 4 different types of sandwiches.
What fraction of a loaf of bread did Nathan use for each type of sandwich?
Answer:
A)
[tex]\displaystyle \frac{1}{12}[/tex]
B)
[tex]\displaystyle \frac{3}{5}[/tex]
C)
[tex]\displaystyle \frac{17}{24}[/tex]
Step-by-step explanation:
Part A)
The Hendersons were traveling 1/3 of the distance on the first day.
However, they had to stop, having only traveled 1/4 of the 1/3 distance.
So, we can multiply the two fractions together.
Therefore, the fraction of the total distance they traveled is given by:
[tex]\displaystyle \frac{1}{4}\times\frac{1}{3}=\frac{1}{12}[/tex]
The Hendersons traveled 1/12 of the total distance.
Part B)
We are assuming the bottle of milk was full at the beginning.
So, at the beginning, there were 1/1 bottle of milk left.
Howie fed a piglet 1/5 of the bottle. So, there is now:
[tex]\displaystyle 1-\frac{1}{5}[/tex]
Of the bottle left.
Making common denominators and subtracting yields:
[tex]\displaystyle =\frac{5}{5}-\frac{1}{5}=\frac{4}{5}[/tex]
So, after feeding the piglet, 4/5 of the bottle of milk was still there.
3/4 of the remainder was fed to a calf.
So, the amount that was fed to the calf is 3/4 times 4/5. Therefore:
[tex]\displaystyle \frac{3}{4}\times\frac{4}{5}[/tex]
Multiply:
[tex]\displaystyle =\frac{12}{20}=\frac{3}{5}[/tex]
So, the calf drank 3/5 of the bottle of milk.
Part C)
Nathan used 2 (5/6) loaves of bread to make 4 sandwiches.
First, convert 2 (5/6) to an improper fraction. So:
[tex]\displaystyle 2\frac{5}{6}=\frac{12+5}{6}=\frac{17}{6}[/tex]
Nathan made 4 sandwiches using this. So, we will divide this by 4. Note that this is the same as multiplying by 1/4. Therefore:
[tex]\displaystyle \frac{17}{6}\times\frac{1}{4}=\frac{17}{24}[/tex]
So, Nathan used 17/24 loaves of bread per sandwich.
Which of the following are true statements about the expression -9 + 9
A The expression describes the number that is 9 to the left of -9 on the number line.
B The expression describes the number that is 9 to the right of -9 on the number line.
C The expression equals -18
D The expression equals 0
In the expression shown "p" represents a rational number.
4p
`what value of "p" makes the expression equal a number less than 4?
Answer:
Is it supposed to be in in an equation?
Step-by-step explanation:
Which of the following expressions has a simplified value of 3a – 2?
HELP ME PLEASE X(
Help me, please Thanks
Answer:
3, 9618, 152
Step-by-step explanation: pemdas -> parenthesis, exponents, multiply, divide, add, subtract.
PLEASE ANSWER ASAP! I ONLY HAVE 2 DAYS LEFT UNTIL MY COURSE ENDS AND I NEED TO GET MY GRADE UP TO B!!!
Step-by-step explanation:
81 - 1.2x <= 55
81 <= 55 + 1.2x
1.2x >= 26
x >= 26/1.2
x >= 21.66... (A)
Answer:
A
Step-by-step explanation:
Hope this helps
What is -4 1/6 x 3/5?
Answer:
Step-by-step explanation:
Harper earned $10 for 2 hours of work in her yard. At this same rate, how much would Harper earn if she worked 6 hours?
Your answer:
$20
$30
$35
$37.50
Answer:
30$
Step-by-step explanation:
10/2=5 5 is how much she earns for 1hour of work.
5x6= 30
Find the retail price if original price is 75$ and the markdown is 15%
Answer:
$63.75
Step-by-step explanation:
Answer:63.75
Step-by-step explanation:
What is the answer to 4x+3x+x
I don't know but and it's 7x+x or just 7x
Answer:
7
Step-by-step explanation:
PLEASE HELP ME
Find the slope and y-intercept of the following graph.
Answer:
y-intercept: 3
slope: 2/3
Step-by-step explanation:
The y-intercept is the point that crosses the y-axis. In this case the y-intercept is 3.
When figuring out the slope, there are some methods. I am going to be using the rise over run method. Start at one point and go up and over untill it hits another point on a graph. Start at (-3,1). Go up 4. Go over 6. You will land on the point (3,5). Your answer will be 4/6. Simplify 4/6 and then you will get 2/3.
What value of w makes the equation 145 = w + 27 true? I NEED THIS ASAP
Answer:
145 = w + 27
145 - 27 = 118
w = 118
Step-by-step explanation:
Use the subtraction method to solve problem like those!
Hope this helped!
Jacob drew this picture of his bedroom.
The ratio of an actual dimension to the
dimension in the drawing is 60:1.
a) The actual length of his bedroom is
9 m. What is the length of the
bedroom in Jacob’s drawing?
b) The width of Jacob’s bedroom in
the drawing is 12 cm. What is the
actual width of his bedroom?
Answer:
b
Step-by-step explanation:
I am not in the mood to do math and I can't think straight but this is way overdue.
Answer:
Step-by-step explanation:
625/25 as both currencies have just been multiplied by 100
Answer:
the second option
Step-by-step explanation:
should i explain why or no?
Tristan is selling plastic and wooden picture frames. He sells 7 frames total. The number of plastic frames Tristan sells is 5 less than twice the number of wooden frames. How many of each type of frame does Tristan sell?
Answer:
4 wooden and 3 plastic
Step-by-step explanation:
4 (wooden) × 2 - 5 = 3 plastic
3 (plastic) + 4 (wooden) = 7 total
The number of plastic frames is 4 and the number of wooden frames is 3.
What is equation?
A formula known as an equation uses the equals sign to denote the equality of two expressions.
Given statement:
The number of plastic frames Tristan sells is 5 less than twice the number of wooden frames.
The total number of frames sold by Tristan is 7.
Write the equation for the above statement,
p = 2w - 5
Here, p is a plastic frame and w is a wooden frame,
p + w = 7
Solve the equation by using the elimination method,
p = 4 and w = 3
Therefore, the number of plastic frames is 4 and the number of wooden frames is 3.
To know more about equation:
https://brainly.com/question/12788590
#SPJ2
Write and simplify an expression that represents the perimeter of the parallelogram.
Answer:
14 x+8
Step-by-step explanation:
Parallelogram: A parallelogram is a special type of quadrilateral in which opposite sides are equal and parallel.
We have to find the perimeter of parallelogram
Perimeter of parallelogram= sum of all four sides
Let first side= 3 x+9
Second side= 4 x-5
third side= 3 x+9
fourth side side= 4 x-5(opposite sides of parallelogram are equal)
Perimeter= 3 x+9+ 4 x-5+ 3 x+9+ 4 x-5+
Perimeter= 14 x+ 8
Answer:
14 x+8
Step-by-step explanation:
For the function y = 4x – 2, what is the value of the function when x is equal to -3?
14
-14
-10
10
Answer:
-14
Step-by-step explanation:im in 8thgrade plus this 4x 4 -3 -12 -2=-14 bam easy
plus
Money in a particular savings account increases by about 6% after a year. How much money will be in the account after one year if the initial amount is $100?
Answer:
hjhg
Step-by-step explanation:
Answer:
106
Step-by-step explanation:
6% • 100
0.06 • 100 = 6
6 + 100
106
What is the sum of 2/5 and -4/5?
A. -4/5
B. -2/5
C. 2/5
D. 4/5
Answer:
C
Step-by-step explanation:
Answer:
2/5 + (-4/5) = -2/5!
⭐ Please consider brainliest! ⭐
Step-by-step explanation:
Use this table of average number of three-point shots per game: graph the points, then choose the sentence that best describes this function.
Year Attempts
1991 28.0
1992 29.8
1993 33.0
1994 34.3
1995 34.0
The average number of three-point shots has increased since 1991.
The average number of three-point shots has remained unchanged since 1991.
The average number of three-point shots increased, then decreased greatly since 1991.
The average number of three-point shots has decreased since 1991.
Answer:1999 29.9
Step-by-step explanation:
Answer:
The average number of three-point shots has increased since 1991.
Step-by-step explanation:
I just took the test (your welcome)
(◠﹏◠)
Find the diameter of a circle with a circumference of 162π yd
Please help!
Thank you! :)
Answer: Isn't a circle always 360??
Step-by-step explanation:
Answer:
d ≈ 51.57
Sorry if this is not helpful.
Ankur estimated the quotient of 15 and one-third divided by (negative 4 and two-thirds) to be 3. Which best describes his error?
Ankur multiplied the compatible numbers 15 and –3.
Ankur found that the quotient of a positive number and a negative number is negative.
Ankur found that the quotient of a positive number and a negative number is positive.
Ankur added the compatible numbers 15 and –3.
Answer:
123/78
Step-by-step explanation:
Answer:
its C, Ankur found that the quotient of a positive number and a negative number is positive.
Step-by-step explanation:
i got it right on edge
which equation represents a line that passes through points (0, 6) and (2, 0) y = -1/3x + 2 y = -1/3x + 6 y = -3x + 2 y = -3x + 6
The answer is y = 3x + 6. I corrected it to 3x becuase it wouldn't work if it was -3x. If -3x is one of the choices then mark that as the answer.
which equation represents a line that passes through points (0, 6) and (2, 0)
y = -1/3x + 2
y = -1/3x + 6
y = -3x + 2
y = 3x + 6
We have to plug in the coordinates into the equation. If x or y solved from the equation equal a coordinate in the coordinates, then it will be the correct equation.
1) 6 = -1/3x + 2
-1/3x = 4
x = 12
This equation doesn't work. Even if the other pair works, it still doesn't satisfy (0,6).
2) 6 = -1/3x + 6
-1/3x = 0
x = 0
0 = -3x + 2
-3x = -2
x = 2/3
This equation doesn't work. Even if the other pair works, it still doesn't satisfy (2,0).
3) 6 = -3x + 2
-3x = 4
x = -4/3
This equation doesn't work. Even if the other pair works, it still doesn't satisfy (0,6).
4) 6 = 3x + 6
3x = 0
x = 0
0 = 3x + 6
3x = 6
x = 2
This equation works.
What is the slope of this line?
−36
negative 3 sixths
−2
negative 2
−12
Answer:
its -2
Step-by-step explanation:
Answer:
-2Step-by-step explanation:
The rise is -6 and the run is 3.
[tex]\frac{rise}{run}= \frac{-6}{3}[/tex]
-6 divided by 3 is -2.
Hope this helps :)
Find an expressiom for the shaded region. Simplify.
Answer:
x is 2 x is 1 2x-2=0 x-2 =1
stop! please help my teachers are very strict and this needs to be turned in in two hour could you help me out?
1. Mr. Colvin drove 1,268 miles in 12 hours. What was his average unit rate of speed in miles per hour? Round to the nearest tenth.
2.True or False: The fraction 3/4 is the same representation as 75%.
3. Put these values in order from least to greatest. 2/3, 80%, 0.25, 1.
;w;
Isabelle is plotted a pentagon on a grid. So far, she has plotted and connected the three points shown on the grid below. To complete the pentagon, she can choose only from the points below.
(2.0) (-2,0), (-2, 4), (2, 4)
How can Isabelle complete her pentagon?
Connect the point already at (0-2) to a new point at (2.0), and then connect
(2.0) to (-2,4)
Connect the point already at (0-2) to a new point at (-2, 0), and then connect (-2, 0) to (-2. 4).
Connect the point already at (0-2) to a new point at (-2, 0), connect (-2, 0) to (24), and then connect (2,4)
to (-2.4)
Connect the point already at (0-2) to a new point at (2.0), connect
(20) to (2.4) and then connect (2.4) to (-2. 4)
Mark this and retum
Save and Exit
Nex
Sub
C
Answer:
Isabelle is plotting a pentagon on a grid.
So far, she has plotted and connected the three points shown on the grid below.
On a coordinate plane, lines connect points (negative 2, 4), (negative 3, 2), and (0, negative 2).
To find:
To complete the pentagon, choosing only from the points below. (2, 0), (–2, 0), (–2, 4), (2, 4).
How can Isabelle complete her pentagon?
Solution:
Consider the attached figure, while going through the following steps.
A five sided polygon is called the pentagon.
As Isabelle already plotted and connected the three points, we need to connect the remaining 2 points to obtain a pentagon.
So, from the attached figure, it's clear that, Isabelle needs to connect the points (2, 0) and (2, 4).
By plotting and connecting these above points, Isabelle can complete her pentagon.
Step-by-step explanation:
above, hope this helps!
Plz and thank you I need help
Answer:
ummm there is nothing
Step-by-step explanation:
On a coordinate and point A is at (-3.0 -5.4) and point B is at (-3.0, 5.4) Point B is a reflection of point A across the -axis. Input either a lowercase x or y
Answer:
reflection of y-axis
Step-by-step explanation: