Answer:
the answer is b
29. Solve the equation below.
30. Sol
5x + 1 = -49
CAN YOU PLEASE HELP ME
A new string is chosen and knotted with all the other strings to create a second row. This process is repeated until there are enough rows to make a bracelet to fit around your friend's wrist. Are the number of knots proportional to the number of rows? Explain your reasoning.
Answer:
Yes, the number of knots is proportional to the number of rows.
Step-by-step explanation:
The number of knots is proportional to the number of rows, because whenever there is a new row then it implies that there is new knot.
Meaning, as the number of rows increases, the number or knots increases. This is a proportional relationship.
PLEASE HELPP!!!
The dimensions of triangle B are twice the dimensions of triangle A. The area of triangle A is 28 cm2.
What is the area of triangle B?
A.
112 cm2
B.
18 cm2
C.
12 cm2
D.
27 cm2
Answer:
Area of triangle B is 112 cm²
Option A is correct option.
Step-by-step explanation:
The dimensions of triangle B are twice the dimensions of triangle A.
Area of triangle A = 28 cm²
We need to find area of triangle B
We know that if base = b and height = h for triangle A
The area of triangle A will be: [tex]Area_A=\frac{1}{2}\times b \times h[/tex]
The dimensions for triangle B will be:
[tex]h_B = 2 h_A\\b_B = 2 b_A[/tex]
Putting in formula we get:
[tex]Area_B=\frac{1}{2}\times b\times h \\Area_B=\frac{1}{2}\times (2b)\times 2(h)\\Area_B=4( \frac{1}{2}\times b\times h)\\Area_B=4(Area_A)[/tex]
SO, we get [tex]Area_B=4(Area_A)\\[/tex]
We have Area_A = 28 cm²
Area of triangle B Area _B is:
[tex]Area_B=4(28)\\Area_B=112\:cm^2[/tex]
So, Area of triangle B is 112 cm²
Option A is correct option.
14. What is the solution of the system?
5x - y= -7
3x - y= -2
-2.5, -5.5
-2.5, 11
5, 2.5
2.5, 5.5
Answer: -2.5, -5.5
Step-by-step explanation:
5x - y= -7
3x - y= -2 multiply by -1
5x - y= -7
-3x + y= +2 we add both equations
2x=-7+2, 2x=-5, x=5/2= -2.5
5(-2.5)-y=-7
- 12.5-y= -7 we simplify and get
-y=-7+12.5, -y=5.5, y=-5.5
Rebecca buys a shirt for $38.
She finds out the shirt is 25% off
and there is 8% sales tax. If
Rebecca has $40, how much change
will she receive?
Answer:
$8.46
Step-by-step explanation:
This is assuming that the sales tax is applied on the pre discounted item.
What is the probability of tossing two coins and having them both land on heads?
50%
33.3%
75%
25%
Answer:
25%
Step-by-step explanation:
Since there are two coins, it's 50%, and since there are two sides to choose from, that would mean 25%. There's a 25% chance either will lie on heads, tails, or both heads or both tails.
Answer:
25%
Step-by-step explanation: because one coin landing on heads is 50%, but since there are two coins you cut 50% in half
how to do this question plz answer my question
write as a single fraction in its simplest form 2x -1 / 3 - 2/x + 1
Answer:
(2x^2 + x-7)/3x+ 3
Step-by-step explanation:
Here, we want to write the following as a single fraction;
2x-1/3 - 2/x + 1
That will be;
(2x-1)(x + 1) -2(3)/3(x+ 1)
= 2x^2+ 2x-x-1-6/3(x + 1)
= (2x^2+x-7)/3(x+1)
= (2x^2 + x-7)/3x+ 3
Select all the correct answers.
Which tables have a lower unit rate than the rate represented in the equation?
y=3/5x
More than one answer
Answer:
x=24
y=21
Step-by-step explanation:
ok budy mark me as brainlsit
C AND E
if theirs 5 answers then its c and e.
1. Sheena and her friends want to form a team to play recreational soccer. They want a combination of males and females for the soccer team. They want to have no more than 7 players on their team.
Part A: Write an inequality to represent the situation. Part B: Graph the inequality and shade the area where the possible solutions would
lie. Part C: What is the difference between the ordered pairs that fall on the line and
the ones that fall in the unshaded area?
Part D: Determine whether these combinations of males, m, and females, f, can be
present.
Find the equation of the line that has a slope of a and a y-intercept of 1.
Answer:
y=ax+1
Step-by-step explanation:
y=mx+b where m=slope and b=y-intercept
y=ax+1
15PTS PLEASE HELP ASAP!
(dont write random answers pls)
look at the pic attached:
Answer
the answer would be
D(5,-2).
Answer:
D(-6, 1)
Step-by-step explanation:
To determine the solution we can start by calculating the slope of AB;
A(-1, 4), B(2, -5)
m = -5 - 4 / 2 - (-1) = -9 / 3 = -3
Then CD, if to be perpendicular, should have the 'negative reciprocal' of the slope of AB. In other words it should have a slope of 1/3. We are given point C as (3, 4) so let's take each of the given options for point D, and find the slope using the two points. If the slope is 1/3rd then that is the correct option.
Now I already know the answer, so instead of going through all the options I will just check the slope with the correct answer choice. You will find the slope to be 1/3rd;
C(3, 4), D(-6, 1)
m = 1 - 4/- 6 - 3 = -3/-9 = 1/3rd
Correct, as you can see
So your solution is option c
Write the quadratic equation in standard form: 2x^2+3x+7=x
2x²+3x+7=x
2x²+3x-x+7=0
2x²+2x+7=0
3) Write an equation of a
line that has a slope of -3
and goes throughh
the
point (-4, 6)
m = -3
point = (-4,6)
You need to put this in point slope form.
y - 6 = - 3( x + 4 )
distribute
y - 6 = -3x - 12
add 6 to 12
y = -3x - 6
answer : y=-3x-6
What is the value of s ?
Please help
No guessing
Answer:
s = 17Step-by-step explanation:
use Pythagorean theorem a² + b² = c²
where a = 8
b = 15
c = s (which is unknown)
plugin values into the formula:
a² + b² = c²
8² + 15² = s²
s = √(64 + 225)
s = √289
s = 17
1. Greg bought a huge Christmas tree. He had to pay a
25% advance to reserve the tree. How much did he pay
to reserve the tree if the cost of the tree is $300?
Answer:
Answer: $1,200
Step-by-step explanation:
Since multiplying 25% would take off 25% from 300, do the opposite (aka divide .25 from 300).
300/.25 = 1,200
Jose buys a bike for $185.00. He used a coupon that saved him 20%, how much did Jose pay for the bike?
Answer:
he paid $37 is the answer for the question
9514 1404 393
Answer:
$148
Step-by-step explanation:
The coupon saved ...
0.20 × $185 = $37.00
When that amount is subtracted from the $185 price, the amount is ...
$185 -37 = $148
Jose pays $148.
_____
Comment on the wording
It seems the question answers itself in the first sentence. Jose bought the bike for $185. If that is what he bought it for, that is what he paid.
We assume the intended wording is something like, "Jose bought a bike with a marked price of $185."
You are going to make cookies for a party. The recipe requires 3 cups of flour, 2 cups of chocolate chips and other ingredients. I also need to write an equivalent ratio that shows how much you need to double the original recipe, can someone help?
Answer:
Ratio of flour to chocolate = 6 : 4
= 3 : 2
Step-by-step explanation:
Original recipe
Flour = 3 cups
Chocolate = 2 cups
Ratio of flour to chocolate = 3 : 2
To double the original recipe
Flour = 3 cups × 2
Chocolate = 2 cups × 2
Flour = 6 cups
Chocolate = 4 cups
Ratio of flour to chocolate = 6 : 4
= 3 : 2
i don't how to do this problem 2(x−2)−4x−5= 29
Answer:
= − 1 9
Step-by-step explanation:
line passes through points (5, 8) and (10, 5). Line b is parallel to line a. what is the slope of line b??
Answer:
-3/5
Step-by-step explanation:
Let's go from the point (5, 8) to the point (10, 5). We can see immediately that x (the 'run') increases by 5 and y (the 'rise') decreases by 3. Thus, the slope of the line connecting these two points is m = rise/run = -3/5.
Both of these lines have the slope -3/5, given that they are parallel lines.
Question : WHICH OF THE LINES IS PARALLEL ? HOW DO YOU KNOW ?
Answer:
B and R
I think that is the name of the lines. If not the the first two lines!!!!
what is the surface area of this rectangular rectangular prism (pic attached)
would somebody be nice enough to help me?
Answer:
25$ each
Step-by-step explanation:
Answer:$23.98
Step-by-step explanation:
How do I solve this problem to find ACD
Answer:
x=135
Step-by-step explanation:
135 !!!!!lollllll
Maria is trying to estimate y70. She uses this table of values:
Square 8.028.12 8.22 8.32 8.42
8.52
Value
64.0 65.6 67.2 68.9 70.6
72.3
Square 8.628.728.82
8.92 9.02
Value
74.0
75.7 77.4 79.281.0
What should she do next to find y70 to the nearest hundredth?
Answer:
The answer is A. She should find the squares of numbers between 8.3 and 8.4.
Step-by-step explanation:
I took the quiz
solve 4x - 7 < 7 or -2x + 13 < 5
Answer:
1. x<7/2
2. x>4
Step-by-step explanation:
hope this helps
Does anyone know how to do the 1st problem!!
Answer:
Yes, it's multiplied/divided by 3. I Don't know what a SS AA SAS is.
Step-by-step explanation:
How much interest is earned in two years in a investment of 2,000 and the interest rate is 3%
Answer: $1,140
Step-by-step explanation:
2000 x .03 = 60
60 x 24 months = $1,140
A right triangle is ____ a scalene triangle.
Always, sometimes, or never
Answer: Sometimes
Step-by-step explanation:
This is a very tricky question. We know that in an isosceles triangle, two sides are the same. Because of this, we know that the right angle is always 90 degrees, and the other sides would be 45 degrees each because all triangles add up to 180 degrees. A right triangle could also be scalene, meaning none of the sides are the same, for example a scalene triangle could have sides of 44, 46, and 90 degrees. Rest assured, a right triangle will never be equalateral. Hope this helps :) Merry Christmas
Tareq pays $22.10 for 2.6 pounds of salmon. What is the price per pound of the salmon?
Answer: $8.50/pound
Step-by-step explanation:
Price per pound --> take the total price and divide it by the number of pounds
$22.10 / 2.6 pounds = $8.50/pound
Answer:
$8.50
Step-by-step explanation:
take 22.10 divide it by 2.6 and you will get your answer.
Hope this helps