9514 1404 393
Answer:
34
Step-by-step explanation:
In order to divide some multiple of 15 chocolate bars evenly by 21, the number of bars must be a multiple of the LCM of 15 and 21, which is 105. That number is 7 times 15, indicating the number of boys in the class must be a multiple of 7. The only number between 30-20 = 10 and 40-20 = 20 that is a multiple of 7 is 14.
There must be 14 boys in the class, so 34 students in total.
__
The boys brought a total of 210 chocolate bars, so each girl and the teacher received 10 of them.
On a coordinate grid, point A is located in the first quadrant. Point B is located at (2, - 1/2
Point C is a reflection of point B across the y-axis. Which graph shows these three points?
Answer:
the answer I think is B so
The graph attached correctly labels the points A, B and C.
What is the meaning of reflection of figure?A reflection is a mirror image of the shape. An image will reflect through a line, known as the line of reflection.
Given is that on a coordinate grid, point {A} is located in the first quadrant. Point B is located at (2, -1/2). Point C is a reflection of point B across the y-axis.
Since the complete graphs are not given. Refer to the graph attached for correct plotted points.
Therefore, the graph attached correctly labels the points A, B and C.
To solve more questions on Reflection of points, visit the link below-
https://brainly.com/question/1548989
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please solve this question asap :)
Answer:
36.695 approx 36.7
Step-by-step explanation:
find the area of the top triangle and then add it to the area of the bottom rectangle
Area of the triangle: (bh)/2
3.5*4.1=14.35
14.35/2=7.175
Area of the rectangle: bh
4.1*7.2=29.52
Total (add the two values)
29.52+7.175
=36.695
You are making a new recipe for dinner. The recipe has the following proportional relationship. 8 cups of corn for 4 cups of sauce 32 cups of 16 for cups of sauce Find the constant of proportionality. Find how many cups of corn you need for 7 cups of sauce.
(please help me with this I don't get it at all)
Answer: I’m not for sure but I think its 8 1/2
Step-by-step explanation:
PLS HELP ASAP
Which statement is correct for Triangle ABC. and Triangle A prime B prime C prime.?
Triangle ABC is similar to triangle A prime B prime C prime. because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 3. and then rotating it about the origin by 180 degrees
Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 4. and then rotating it about the origin by 90 degrees
Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 4. and then rotating it about the origin by 180 degrees
Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 6. and then rotating it about the origin by 90 degrees
Answer:
A
Step-by-step explanation:
Which values for x make this inequality false?
Answer:
0, -11, -5, and 20
Step-by-step explanation:
The inequality can be read as x is less than -12.8 (or -12.8 is greater than x)
This means that we need to pick x values that are greater than -12.8 for the inequality to be false.
The values greater than -12.8 are:
0, -11, -5, and 20
solve for x: 4.72 = 3.25 + x
what is 9/15 estiamted to 0,1/2,1
Answer:
.........
Step-by-step explanation:
What does "mean" mean in math?
Median:The number in the MIDDLE when they are IN ORDER! - Mean- The AVERAGE OF ALL NUMBERS: You add up all the numbers then you divide it by the TOTAL NUMBER of NUMBERS!
hope it helps
Answer:
The mean is the total of the numbers divided by how many numbers there are. To find the mean, add all the numbers together then divide by the number of numbers.
Step-by-step explanation:
Please mark me brainliest and thank me
The temperature in degrees Fahrenheit, F, is related to the temperature in degrees Celsius, C, by the equation F=9/5C+32.
a. In the Sahara desert, temperatures often reach 50 degrees Celsius. How many degrees Fahrenheit is this?
degrees Fahrenheit
b. In parts of Alaska, the temperatures can reach -60 degrees Fahrenheit. How many degrees Celsius is this?
degrees Celsius
c. There is one temperature where the degrees Fahrenheit and degrees Celsius are the same, so that C=F. Use the expression from the equation, where F is expressed in terms of C, to solve for this temperature.
C =
Answer:
33.8
Step-by-step explanation:
9/5C=1.8C+32=33.8
Here is the graph for one equation in a system of equations:
Match the correct equation to the scenario.
Write a second equation for the system so it has infinitely many solutions.
a) y=-3/4x+4
b) y=-3/4x+2
c) y=-3/4x+1
Write a second equation whose graph goes through (0, 1) so the system has no solutions.
a) y=-3/4x+4
b) y=-3/4x+2
c) y=-3/4x+1
Write a second equation whose graph goes through (0, 2) so the system has one solution at (4, 1).
a) y=-3/4x+4
b) y=-3/4x+2
c) y=-3/4x+1
Answer:
Step-by-step explanation:
1. y = -3/4 +4 cause that is the same line as the equation and since they are the same line it would mean there would be infinitely many solutions.
2. y=-3/4x+2 if you graph this line next to the orginal line it runs through (0,1) and you can see that its paralellel and will never meet the other line so there will be no solutions
3. for this question im confused because none of the answers fits the line that the question is asking for the closest would be y= -3/4x+2 since it runs through (0,2) but other than that none of the answers fit the line its describing.
an equation that would work though would be y=-1/4x+2
WILL GIVE BRAINLIEST AND 70 POINT! PLEASE HELP ME!
Answer:
X and Y
and for ast two answers pls give me the options
How do you convert 14x + 19y = 20 into slope intercept form?
Subtract 14x from both sides. Then divide both sides by 19
[tex]14x + 19y = 20\\\\19y = 20-14x\\\\19y = -14x+20\\\\y = \frac{-14x+20}{19}\\\\y = \frac{-14x}{19}+\frac{20}{19}\\\\y = -\frac{14}{19}x+\frac{20}{19}\\\\[/tex]
The equation is now in slope intercept form y = mx+b
m = -14/19 is the slope
b = 20/19 is the y intercept
You will need 120 feet of fencing to put all the way around a rectangular garden. The length of the garden is 40 feet. What is the width?
A. 20 feet
B. 40 feet
C. 4,800 feet
D. 80 feet
Answer:
A. 20 ft
Step-by-step explanation:
(120/2)-40=20
Answer:
a) 20 feet
Step-by-step explanation:
We know it's a rectangle so lengths are the same and widths are the same
If length is 40
That would mean 120-2(40) = 80
We know 2 widths of a rectange so 40/2 is 20
Therefore 20 feet.
How do you convert 20x + 9y = 9 into slope intercept form?
Answer:
[tex] y = - \frac{20}{9} x + 1 [/tex]
Step-by-step explanation:
[tex]20x + 9y = 9 \\ \\ 9y = - 20x + 9 \\ \\ y = - \frac{20}{9} x + \frac{9}{9} \\ \\\purple {y = - \frac{20}{9} x + 1} \\ this \: is \: the \: required \: \\slope \: - intercept \: form \\ \ \\ where \: \\ slope \: = - \frac{20}{9} \\ \\ y - intercept = 1[/tex]
Please help with this
Answer:r=40/9
Step-by-step explanations
HELP PLEASE THIS IS DUE AT 9:50 MY TEACHER IS STRIIIICT ABOUT HOMEWORK
Answer:
[tex] \sqrt[3]{?} 3375 [/tex]
Does anyone also understand this?
Answer:
See explanation
Step-by-step explanation:
So, the angle for QRS is the interior angle of R. The exterior angle outside of angle R is for the equation you are going to use. Because angle R is on a straight line, the interior angle of R plus the exterior angle of R will equal 180 degrees. From there you should be able to calculate the rest of the angles, I believe you should be able to calculate y first.
k/7 + 3 − 2k = −3
Explain how to solve the problem. SHOW YOUR WORK!
Answer: 42/13
Step-by-step explanation: Multiply everything by 7 to eliminate the fraction:
k+ 21 - 14k = -21
Isolate the variable:
k - 14k = -21-21
13k= -42
divide the sides by -13.
42/13
Urgent help pleaseeeeeee
Answer:
2x - 10 = 10 - 3x
Simplifying
2x + -10 = 10 + -3x
Reorder the terms:
-10 + 2x = 10 + -3x
Solving
-10 + 2x = 10 + -3x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '3x' to each side of the equation.
-10 + 2x + 3x = 10 + -3x + 3x
Combine like terms: 2x + 3x = 5x
-10 + 5x = 10 + -3x + 3x
Combine like terms: -3x + 3x = 0
-10 + 5x = 10 + 0
-10 + 5x = 10
Add '10' to each side of the equation.
-10 + 10 + 5x = 10 + 10
Combine like terms: -10 + 10 = 0
0 + 5x = 10 + 10
5x = 10 + 10
Combine like terms: 10 + 10 = 20
5x = 20
Divide each side by '5'.
x = 4
Simplifying
x = 4
Answer
pick C
Step-by-step explanation:
the answer is 2x+12
I need help right now
You are ordering pizzas to share with friends. If you consider 3 slices (or 3/8 of a pizza) to be a single serving, how many servings will you get if you order 3 pizzas?
3 slices = 3/8 of a pizza 1 pizza = 8 slices 3 pizzas = 24 slices
Answer:
I belive you would get 8 servings in 3 pizzas. 24 divided by 3 is eight
Step-by-step explanation:
Mindy's dog, Rex, weighed 80 pounds a year ago. Now he weighs 92 pounds. What is the percent increase in his weight? A. 13% B. 12% C. 15% D. 16%
Please answer ALL FOUR questions, and if you don't properly answer the questions or just steal the points I will report and get your answer removed.
Answer:
i could just use this one to get the points from the last one i answered in the comments if you dont mind :)
Step-by-step explanation:
Answer:
what are the questions?
Step-by-step explanation:
A scale model of a boat is 6 inches long. The actual boat is 42 feet long. Which statement(s) are true??
Answer:
B. 1 in = 7 ft
Step-by-step explanation:
Since on the scale the boat was 6 inches and the actual boat was 42 feet, we need to divide to see how many feet correlate to the number on inches on the scale. So we do 42 / 6, which equals 7. This means that for every inch on the scale, it will be 7 feet in real life.
5. During an local election the ratio of teens to adults who voted was 10:8. If 1,764 people voted how many were teens?
Answer:
288
Step-by-step explanation:
Answer: 288
Step-by-step explanation:
Brainliest to the first right
Please help with this
sorry i did not put the pick hear you go sorry my bad
7th grade math ◑〰️◐
help me ples its my sis agen she sint me this ples help her/me
by her /me i mean me helping her
True or False
Scale Factors can be written as fractions in simplest form.
Answer:
TRUEStep-by-step explanation:
scale factor is the ratio of the model measurement to the actual measurement in simplest form
PLS MARK AS BRAINLIEST...
HELP NOW PLEASE !!!!!
BRAINLIEST!!! Lorenzo deposited $60 in a savings account earning 10% interest, compounded annually.
To the nearest cent, how much will he have in 2 years?