Sarah started with 40 pieces of gum and gave away x pieces . Gerardo started with 24 pieces of gum and gave away twice as many pieces Sarah did . how many pieces of gum did Sarah give away if they had same number of pieces of gum left
A teacher wants to choose a student at random. The teacher decides to choose the first person to walk through the classroom door at the start of the lesson.
a. Explain why this is not a good method.
2. Suggest a better method.
Answer:
The first person to arrive is not random. The person that mostly arrives first every time is the person who lives closest to the school, or is a teacher's pet.
The odds of the person who lives 20km away from the school being first are way lower than anyone else.
A better method, would be everyone writes their name on a paper, and the teacher picks one at random from a hat.
Mr. Salazar was making a BBQ brisket. The brisket weighed 4 pounds. How many ounces did the brisket weigh?
Name the polygon. Then tell whether it is a regular polygon or not a regular polygon.
Answer:
not a regular polygon
Step-by-step explanation:
A regular polygon is an n-sided polygon in which the sides are all the same length and are symmetrically placed about a common center
Use linear function g(x)=3x+5
a. Given x= 1,3,5,7 what are the output values of g(x). respectively?
b.write the input and output values as ordered pairs (hint: there are four order pairs.)
c. How did the order pairs change ?
A. 8, 14, 20, 26
B. (1, 8), (3, 14), (5, 20), (7, 26)
C. As x increased by 2, g(x) increased by 6. If x increases by 1, g(x) will increase by 3.
Hope this helped.
Can you please help me
Answer:
50
Step-by-step explanation:
Angle 1 is inside a triangle. Angles in a triangle add up to 180.
Angle 1 = 180 - 90 - 40 = 50.
Angle 2 is on a straight line (180 degrees), shared with angle 1. Therefore, angle 2 is 180 - Angle 1 = 130. Angle 3 and 4 can be calculated the same way Angle 2 was calculated (1=3, 2=4).
Angle 5 is 180 - 90 - Angle 3 which is 180-90-50 which is 40.
Angle 6 is 180 - Angle 5 = 180 - 40 = 140.
Angle 8 is the same as Angle 6
Finally, Angle 7 is 180-90 = 90.
Hope that helped!
Giving brainlist to whoever answers
Answer:
False
Step-by-step explanation:
[tex]V=bhw\\V=7.5*13*2\\V=195[/tex]
7. A scatter plot was created to show the relationship
between the number of staff members and students
at various schools. The scatter plot's trend line has an
equation of y = 0.1x + 18, where y is the total number
of staff members and x is the total number of
students.
Use the equation to predict the number of students in
a school with 120 staff members.
A. 1,038 students
B. 30 students
C. 890 students
D. 1,020 students
Answer:
1020 students
Step-by-step explanation:
Given the trend line equation :
y = 0.1x + 18,
where y is the total number of staff members and x is the total number of students.
Using the equation, the predicted number of students in a school with 120 staffs ;
y = 120
y = 0.1x + 18
120 = 0.1x + 18
120 - 18 = 0.1x
102 = 0.1x
x = 102 / 0.1
= 1020 students
The vertices of trapezoid ABCD are A(3,-2), B(7,-2), C(8,- 7), and D(1, - 7). Graph ABCD and
A'B'C'D', its image after a reflection across the x-axis.
Answer:
B
Step-by-step explanation:
When reflecting a figure over the x-axis, flip the sign of the y-coordinates for the vertices.
For this figure, trapezoid ABCD, the vertices are:
A (3, -2)
B (7, -2)
C (8, -7)
D (1, -7)
Flipping the signs of the y-coordinates gives us:
A (3, 2)
B (7, 2)
C (8, 7)
D (1, 7)
The only graph that has trapezoid A'B'C'D' with vertices matching these four values is the graph for B, so the answer is B.
A line segment has an endpoint at (-1, -7). If the midpoint of the line segment is (3, -3), what
are the coordinates of the point at the other end of the line segment?
39 BRAINLY POINTS PLEASE HELP.
SYSTEM OF INEQUALITIES.
PLS HELP ASAP!!!! WILL GIVE BRAINLIEST
Answer:
15.7 BRAINIEST PLS
Step-by-step explanation:
Using the hypotenuse formula to calcultate the unknown sides
we get
8.6
7.1
5
add them up and we have 15.7
Answer:
15.7
Step-by-step explanation:
cube root of 8p^6÷q^3
Answer:
2p^2/q
Step-by-step explanation:
[tex]\sqrt[3]{\frac{8p^6}{q^3} } = \sqrt[3]{\frac{(2p^2)^3}{q^3} }[/tex]
What is the missing value?
54
30%
100%
?
Answer:
the missing value is 18.
Step-by-step explanation:
First i converted the percentage to a fraction which was 30% was 3/10 or 0.3 or 3 and 100% was 1 so i took those numbers with 54, 1, 3, and Solve for an unknown value x with this fractions calculator. Find the missing fraction variable in the proportion using cross multiplication to calculate the unknown variable x. Solve the proportion between 2 fractions and calculate the missing fraction variable in equal's.
For the equation
543=x1
The cross product is
54×1=3×x
Solving for x
x=54×13
and reducing
x=18
Solution by Proportion
Since the equation is an equality
If
3 ÷ 1 = 3
Then it is true that
54 ÷ x = 3
Solving for x
x = 54 ÷ 3
x = 18
from least to greatest
Answer:
Step-by-step explanation:
.3, 1/3, 2/5, 1/2, .6
Answer:
0.3, 1/3, 2/5, 1/2, 0.6
Step-by-step explanation:
Divide 1 by 3 and you get 0.333. Divide 1 by 2 and you get 0.5. Then divide 2 by 5 and you get 0.4. From there it's easier to compare. You could also make the decimals into fractions, but comparing those would take more steps by trying to find similar denominators.
I will give brainliest to first correct answer!!!!
Answer:
Step-by-step explanation:
5^-3 --> 1/125
-5^-3 --> -1/125
(-5^-3)^-1 --> -125
(-5^-3)^0 --> 1
pamela is 10 years older than Jiri. the sum of their ages is 76. what is jiri age
Answer:
jiri's age is 66 years old
Step-by-step explanation:
76-10= 66 years old
Evaluate the algebraic expression 4v-3 if v= -5.explain
Answer:
-23
Step-by-step explanation:
Given 4v-3
evaluate when v = -5
So basically we want to find the value of the expression when the variable (v) equals -5
so
* plug in -5 for v*
4(-5)-3
4*-5=-20
-20-3=-23
So we can conclude that when v = -5 the value of the expression is -23
Answer:
4v-3 = -23Explanation:
given the expression: 4v-3
if v = -5
4v-3 (let's subsitute v)
4v-3 = 4×(-5)-3
4v-3 = -20 - 3
4v-3 = -23
Classify the polygon by its number of sides. State whether the polygon appears to be regular or not regular it’s has 8 sides
Answer:
octagon, regular
Step-by-step explanation:
it has eight sides and the side all measure the same amount
Please someone help me with this no links
Answer:
w = -12
Step-by-step explanation:
You basically have 90% of the question done. You just needed to divide -60 by 5 and then get -12.
Good Luck!!!!!
=====================================================
Explanation:
You're on the right track. You start off subtracting 35 from both sides, and then next divide both sides by 5. Your steps are 100% correct. The last thing to do is to simplify each side after what you wrote. The -60/5 on the left simplifies to -12, while the 5w/5 on the right simplifies to w. We end up with -12 = w and that's the same as w = -12.
--------------
To verify, replace every copy of 'w' with -12 in the original equation and simplify each side.
-25 = 35 + 5w
-25 = 35 + 5(-12)
-25 = 35 - 60
-25 = -25
We end up with the same thing on both sides, so the answer is confirmed.
A 14-in. diameter pizza is cut into 6 equal
slices. About how many square inches of
pizza are in each slice? Round to the
nearest square inch.
Answer:
25.64 in² per slice
Step-by-step explanation:
14 diameter = 7 radius
area of whole = π7² = 153.86 in²
153.86/6 = 25.64 in²
The mean of data set A is 42. The mean of data set B is 47. The mean absolute deviation (MAD) of both data sets is 25. What is the difference of the
means as a multiple of the MAD?
The difference of the means is.......? times the MAD
HELP!
Answer:
The difference of the means is 2 times the MAD
Step-by-step explanation:
Mean of data set A = 42
Mean of data set B = 47
MAD of both data sets = 2.5
Difference of their means = 47 - 42 = 5
Thus, the difference of their means = 2 × the MAD
= 2 × 2.5 = 5
Therefore:
The difference of the means is 2 times the MAD
Is the ordered pair (-5, 4 a solution of
the system of linear equations whose
graph is shown? Explain your reasoning.
Answer:
No
Step-by-step explanation:
No, (-5, -4) is not a solution to the system of equations. In order for a point to be a solution to a system of equations, the lines have to intersect at that point in a graph. Looking at the given graph, the lines do not intersect at (-5, -4), but at (-4, -5) instead. Thus, (-5, -4) is not a solution.
(15 points!) What is the m
EG is parallel to FH and AD is the transversal.
We know that the interior angles on the same side of the transversal are supplementary.
Angle EBC and Angle FCB are interior angles on the same side of the transversal.
So, Angle EBC + Angle FCB = 180°
=> Angle EBC + 76° = 180°
=> Angle EBC = 180° - 76°
=> Angle EBC = 104°.
Answer — 104°
whats the answer on this question
k + 12 = g + 12
comparing rational and irrational numbers page 26 of spectrum math
Answer:123456780-0987654321234567876543212345676543212
Step-by-step explanation:UGLY FAT Pig took 5000 kids in his basement and he ate them but they were fake kids and they were bombs and he heard the beep bep beep sound but instead of beep it was ugly fat pig and he die this is your only right answer
Answer:
Irrational means you have a never ending number such as 8.90919273788..... A rational number means it ends such as 36 or 5.113
What is the sum of 39 + 5 + 768 + 3668?
Answer:
4480
Step-by-step explanation:
Answer:
4,480
Step-by-step explanation:
39+5=44
44+768=812
812+3668=4,480
Hope this helps :)
Three side lengths of a right triangle are given. Does it matter where you substitute the lengths in the Pythagorean Theorem? Explain.
Can someone please solve this x + 7 = 12
Answer:
x=5
Step-by-step explanation:
change to x=12-7
subtract
x=5
I will mark as brainliest. Thank you!
Answer:
2
24
5
4
Step-by-step explanation:
The given recipe makes 8 bags.
To make 16 bags, Lily needs twice as many ingredients because 8 + 8 = 16.
Since 1 cup of raisins makes 8 bags, 2 cups of raisins will make 16 bags.
To show the mathematical way:
Variable w = number of cups of raisins
1/8 = w/16
Cross multiply
1 × 16 = 8 × w
16 = 8w
2 = w
2 cups of pretzels makes 8 bags so 6 cups of preztels will make how many bags?
Set up an equation:
Variable x = number of bags
2/8 = 6/x
Cross multiply
2 × x = 8 × 6
2x = 48
x = 24
6 cups of pretzels will make 24 bags.
If 0.5 cup of pecans = 2.5 cups of crackers, then 1 cup of pecans = y cups of crackers?
Variable y = number of cups of crackers
Set up equation:
0.5/2.5 = 1/y
Cross multiply
0.5 × y = 2.5 × 1
0.5y = 2.5
y = 5
1 cup of pecans will need 5 cups of crackers
2 cups of pretzels = 8 bags, so 1 cup of preztels = z bags?
Variable z = number of bags
Set up equation:
2/8 = 1/z
Cross multiply
2 × z = 8 × 1
2z = 8
z = 4