Answers
Answer:
1. A
2. B
Step-by-step explanation:
They want to isolate x in both cases.
So the best choice for question 1 is A because if he adds 10 to both sides x will be positive.
On question 3 the best choice is subtracting 15 from both sides
Related Questions
Daniel says that more than half the students spent 2 1 2 hours or more on homework. Liz says more than half the students spent less than 2 1 2 hours on homework. Who is correct? Explain.
Answers
Answer:
Liz is correct
Step-by-step explanation:
Given
See attachment for complete question
Required
Who is correct? Daniel or Liz
From the attached data, we have:
[tex]Time: 1\frac{3}{4},\ 2\frac{1}{2},\ 2,\ 2\frac{3}{4},\ 1,\ 1\frac{3}{4},\ 1\frac{1}{4},\ 3,3\frac{1}{4},\ 3\frac{3}{4},\ 2,\ 2[/tex]
The total number of students is:
[tex]n = 12[/tex]
The data that represents [tex]2\frac{1}{2}[/tex] or more is:
[tex]Time: 2\frac{1}{2},\ 2\frac{3}{4},\ 3,3\frac{1}{4},\ 3\frac{3}{4}[/tex]
The frequency of this is 5
The frequency that represents [tex]2\frac{1}{2}[/tex] or less will be 7
This means that less than half spend [tex]2\frac{1}{2}[/tex] or more
and more than half spend [tex]2\frac{1}{2}[/tex] or more
Hence, Daniel is incorrect. Liz is correct
QUICK GIVING BRAINLIEST TO THE CORRECT ANSWER
Answers
0.91 as a percent is 91%
Answer:
91%
Step-by-step explanation:
0.91 = 91/100 = 91%
A cone has a height of 8.4 centimeters and a base with a radius of 5.2 centimeters. What is the volume of the cone?(PLEASE SOLVE IT)
Answers
Answer:
237.86 cm3
Step-by-step explanation:
V=πr2h
3=π·5.22·8.4
3≈237.85626cm³
Jessica is eating a bag of Sour Skittles. Her friend asks her to share, and Jessica throws over an extra bag. Her friend does not catch the bag, and it hits the ground. The distance from the ground (height) for the bag of candies is modeled by the function h(t)=−16t2+32t+4h(t)=−16t
2
+32t+4, where h(t) is the height (distance from the ground in feet) of the candies and t is the number of seconds the candies are in the air. Describe in a paragraph what the graph of this scenario would look like.
Answers
Answer:
A parabola opens downward with vertex at (1,20)
The function that models the height of bag of candies is
The graph of this function is a parabola that opens downward.
To find the maximum height of the candy bag, we complete the squares to obtain the vertex form of the function.
Factor -16 to get;
Add and subtract the square of half the coefficient of t.
Factor the perfect square trinomial:
The vertex is (1,20)
This means the maximum height after 1 second is 20 feet.
HELP PLZ BRAINIEST TO WHOEVER RIGHT
Answers
Answer:
5, 11, 10, 4, 19 ,2, 12
Step-by-step explanation:
9 is the mean
Standard deviation is 5.398 | Rounded = 5.4
Answer:
mean 9
deviation 5.8
Step-by-step explanation:
2) Find the perimeter of the figure below.
6yd 5yd 9yd 4yd
Answers
The perimeter is 24
Help no links please
Answers
solve for n
solve for n
solve for n
solve for n
solve for n
Answers
Answer:
n = 4Step-by-step explanation:
Isosceles triangle, the given angles are congruent
6n - 3 = n + 176n - n = 17 + 35n = 20n = 20/5n = 4Answer:
n = 4
Step-by-step explanation:
6n - 3 = n + 17
5n = 20
n = 4
In a right triangle, the length of one leg is 7 ft. The length of the other leg is 10 ft. What is the length of the hypotenuse?
[tex]A 149 ft. Squared \\B 51 ft. Squared\\C 17 ft\\D 289 ft. Squared[/tex]
Answers
Answer:
12^2: 7^2 + 10^2
49 + 100 = 149
12^2: 12 x 12 = 144 close enough
Step-by-step explanation:
12 is your answer
The perimeter of a square is (8x + 6) centimeters. Part A: Write an expression for the length of a side of the square. Part B: The perimeter of the square is 72 centimeters. Write and solve an equation to find the value of x, then find the side length of the square.
Answers
Step-by-step explanation:
Part A:
(8x+6)/4= 2x+ 1.5
Part B:
72= (8x+6)
8x= 72-6
8x= 66
x= 8.25
the side length = 2x+1.5= 2(8.25)+1.5= 18 centimetres
2. Welington city engineers are designing two parallel roads by the International Polo Club to help
with traffic flow during tournaments.
Answers
Answer:
159
Step-by-step explanation:
180 - 21
PLEASE HELP! THIS IS DUE IN 10 MINS (I WILL GIVE BRAINLIEST)
SHOW UR WORK PLEASE
Answers
Answer:
35
Step-by-step explanation:
if chiefs lost by 25, packers have 25 more points.
packers - 25 = chiefs
equation: packers - 25 = 10
packers = 10 + 25
packers = 35 points
Answer:
35 pts
Step-by-step explanation:
10+25=35
10+10=20
+15
35
lol
find the area of a semi circle when the radius is 10cm.
give the answer in term of pi
Answers
Answer:
A = 50π cm²
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
Area of a Circle: A = πr²
r is radiusStep-by-step explanation:
*Note: A semicircle is half a full circle.
Step 1: Define
Radius r = 10 cm
Step 2: Solve for A
Rewrite Area of Circle Formula: A = 0.5πr²Substitute in r [Area of Semicircle Formula]: A = 0.5π(10 cm)²[Area] Evaluate exponents: A = 0.5π(100 cm²)[Area] Multiply: A = 50π cm²how much fencing is required to enclosed a circular garden whose radius is 14 m? use 22/7 for π
Answers
Answer:
[tex]circumference = 2\pi \: r \\ = 2 \times \frac{22}{7} \times 14 \\ 88 \: m \: fence[/tex]
10 x 23 x 4 divided by 54 x 4
Answers
Answer: roughly 4.2593
Step-by-step explanation:
920/216
put the equation through a calculator
approx. 4.2593
Answer:
17.037037
Step-by-step explanation:
Move the correct words to the angle.
line segment
ray
endpoint
right angle
obtuse angle
Answers
Answer:
top box: ray
bottom box: endpoint
Step-by-step explanation:
top box: a ray is a line that doesn't stop and that is represented by a arrow on the end of it
bottom box: an end point is where a ray, or line segment stop and since i see two rays that stop there it is an endpoint
I need help ASAP, pls
Answers
volume of a rectangular prism is V=L•W•H/3
so the problem would look like V=9•9•5/3
PLEADE HELP ILL WILL GIVE GAFT BRAINLIEST BRAINLIEST PLEAS EPLEASE PLEASE
Answers
Answer:
The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate.
The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other. Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k.
Hope this helps!
Step-by-step explanation:
Someone help me please! :(
Answers
Because each side is 90 and 9 x 4 = 360
Carmen will randomly pick one marker from a bowl and one crayon from another bowl.
- There are 4 green markers, 3 brown markers, and 1 purple marker.
- There are 6 orange crayons and 2 yellow crayon.
What is the probability of picking a brown marker and a yellow crayon?
Answers
Yellow crayon- 2/8 = 1/4 because there are 2 yellow out of a total 8. If we simplify that and divide 2 from both sides, we get 1/4. :) Hope that helps! <3
Find the area of each figure
Answers
Answer:
1824in. 2
Step-by-step explanation:
first, we need to cut it to two figure (a triangle and a rectangle), then calculate each of the area.
the area of triangle
= 12in.×48in.×1/2
= 576in.2×1/2
= 288in.2
the area of rectangle
= 32in.×48in.
= 1536in.2
the area
= 288in.2+1536in.2
= 1824in.2
HELP!
What is the measure of angle BGC??
Answers
90 degrees
Explanation:
I’m not 100% sure, but it’s opposite to a 90 degree.
3x - x + 4 = 0
Need Step by Step PLZ
Answers
Answer:
3x - x + 4 = 0
2x = -4
x = -4 ÷ 2
x = -2
[/text]\blue{ \boxed{{Learn{\tt \colorbox {blue}{ \: with \: Aulia ✾ }}}}}[\text]
Answer:
anyone help if you can
Answers
Answer:
The answer is C
Step-by-step explanation:
HOPE it helps!!:))))
the answer to this question
Answers
8.6
Expiration
What is the length of each leg of the triangle below?
Answers
Answer:
Just multiply and divide the parallel sides.
Step-by-step explanation:
А ?B xº 73° What is the value of x?
I just need angle a and x
Answers
a straight line is 180 degrees and we are given one angle so just do 180-173.
Find the volume and round to the nearest tenth
Answers
Answer:
6 x 4 = 24
24 x 15.3 = 367.2
half of 4 is = 2
2^2 = 4
4 x 3.14 = 12.56
12.56 divided by 2 = 6.28
6.28 x 15.3 = 96.084
367.2 + 96.084 =
463.284 ft3 is your answer.
Evaluate.
f(x)=17-5x at x=a-3
Answers
x= 17/5
You can paint 8 square feet in 2 hours. How many square feet can you paint in 7 hours
Answers
How this helps
8 square feet = 2 hours
°divide 2hrs to 8 square feet
1hr = ?
2÷8 =4
so,
1hr = 4 square feet
●In 1 hour 4 square feets will be covered•4 square feet can be painted in 1 hour.
*now to find how many square can be painted in 7 hrs.
°multiply no. of hours to hd no. of square feet per hour.
7hrs = ?
7×4 =28
So,
●28 square feet would be covered in 7 hours.may this helps you
bye