Answers
Answer:
Step-by-step explanation:
a 2x-6/5=4
2x-6=20
2x=26
x=13
b 7-2x/4=9
-2x=8
x=-4
Related Questions
A video is 2 hours long. How many minutes long is the video?
Answers
Answer: 120 minutes.
Step-by-step explanation:
60 minutes in an hour. 60 * 2 = 120
Please help!! Giving brainliest and extra points!! (Click on photo)
Answers
Answer:
45
Step-by-step explanation:
12 x 2.5= 30
5 x 6=30
30/2=15
30+15=45
The blueprint of a concrete patio has a scale of 2 inches = 3 feet. On this blueprint, the width of the patio is 12 inches. You want to create a NEW blueprint using a scale of 1 inch = 2 feet. What will be the width of the patio on your new blueprint?
Answers
Answer:
[tex]9\ \text{inches}[/tex]
Step-by-step explanation:
[tex]2\ \text{inches}[/tex] of the blueprint is [tex]3\ \text{feet}[/tex] of the actual concrete patio.
So [tex]1\ \text{inch}[/tex] of the blueprint = [tex]\dfrac{3}{2}\ \text{feet}[/tex] of the actual concrete patio
Width of the patio in the blueprint is [tex]12\ \text{inches}[/tex].
So [tex]12\ \text{inches}[/tex] of the blueprint = [tex]12\times \dfrac{3}{2}=18\ \text{feet}[/tex] of the actual concrete patio.
Now for the new blueprint [tex]1\ \text{inch}=2\ \text{feet}[/tex] of the actual concrete patio.
[tex]1\ \text{feet}[/tex] of the actual concrete patio = [tex]\dfrac{1}{2}\ \text{inch}[/tex] of the new bluprint.
So, [tex]18\ \text{feet}[/tex] of the actual concrete patio = [tex]\dfrac{18}{2}=9\ \text{inches}[/tex] of the new blueprint.
Suppose f(x) = 5x^2 + 7x...Find (-3)
Answers
Answer: F(x)=24
Step-by-step explanation:
f(x)=5(-3)^2+7(-3)
f(x)= 5(9)+7(-3)
f(x)=45-21
f(x)=24
How many triangles can be constructed with angles measuring 50°, 90°, and 40°?
one
more than one
none
Will mark correct answer as brainliest.
(Posted 2/11/21)
Answers
Answer:
it would made one triangle
Step-by-step explanation:
it adds up to 180
0.1562 rounded to the nearest hundredth place
Answers
Answer:
0.16
Step-by-step explanation:
if the number in the thousandths is 5 or over you round it up.
Answer:
0.6
Step-by-step explanation:
there is no way of doing this you just look at the number 5 .
Proving lines parallel determine the value of X
Answers
when both l and m are parallel then
(4x+7) = (6x-63)
-2x = -70
-x = -70/2
-x = -35
x = 35
hope it helps and ur day will full of happiness
Alisha buys 6 boxes of peanut butter granola bars and 6 boxes of cinnamon granola bars. Let p represent the number of peanut butter granola bars and c represent the number of cinnamon granola bars. Jaira and Emma each write an expression that represents the total number of granola bars Alisha bought.
Jaira
6p + 6c
Emma
6(p + c)
Are the expressions equivalent?
Answers
Answer:
Yes.
Step-by-step explanation:
An iron bar has volume 650 cm' and density 7.87 g/cm3.
Work out the mass of the iron. Give your answer in
a) grams
b) kilograms
Answers
Answer:
a.5115.5g
b. 5115.5/1000= 5.1kg
Step-by-step explanation:
Given data
volume= 650 cm^3
density= 7.87 g/cm^3
We know that
density= mass/volume
mass= density*volume
mass= 7.87*650
mass= 5115.5 g
a.5115.5g
b. 5115.5/1000= 5.1kg
HELP HELP HELP HELP HELP
Answers
if 80% of students chew gum at least once a day what fraction represents the same percent of students
Answers
Answer:
4/5
Step-by-step explanation:
hope this helped !
7x - 2y = 1
2y = x - 1
Solution as (x,y)
I am really confused please help!!!!
Answers
Answer:
Step-by-step explanation:
Simplifying
7x + -2y = 1
Solving
7x + -2y = 1
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '2y' to each side of the equation.
7x + -2y + 2y = 1 + 2y
Combine like terms: -2y + 2y = 0
7x + 0 = 1 + 2y
7x = 1 + 2y
Divide each side by '7'.
x = 0.1428571429 + 0.2857142857y
Simplifying
x = 0.1428571429 + 0.2857142857y
///////////////////////
Simplifying
2y = x + -1
Reorder the terms:
2y = -1 + x
Solving
2y = -1 + x
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Divide each side by '2'.
y = -0.5 + 0.5x
Simplifying
y = -0.5 + 0.5x
Answer:
1) y = − 1 2 + 7 x 2
2) x = 2 y + 1
Step-by-step explanation:
Subtract 7 x from both sides of the equation. − 2 y = 1 − 7 x Divide each term by − 2 and simplify.
y = − 1 2 + 7 x 2
Solve for x by simplifying both sides of the equation, then isolating the variable. x = 2 y + 1
Find the solution.
3(x+6)=24
x=______
Answers
Answer:
x=2
Step-by-step explanation:
Answer:
x=2
Step-by-step explanation:
happy to help ya :)
loooooook below answer number 1234 am giving brainliest
Answers
Answer: for number 1 - answer is 84.7
number 2 - answer is 24
number 3- answer is 47.5
number 4 - answer is 6.5
Step-by-step explanation:
1: 84.7
2: 24
3: 47.5
4: 6.5
can anyone help me please?
Answers
Answer:
The sum of interior angles of a regular shape is found by doing no. of sides - 2 and times this by 180
8-2 =6
6x 180= 1080
then divide by 8 to find each angle
1080/8 = 135
On Thursday the Meat King Market sold 210 pounds of ground beef. On Friday they sold twice that amount. On Saturday they only sold 130 pounds. How much more meat did they sell on Friday than Saturday?
Answers
find the product of (x-3)^2
Answers
Answer:
x^2 - 6x + 9
Step-by-step explanation:
(x-3)^2
(x-3)(x-3)
x^2 -3x -3x + 9
x^2 - 6x + 9
^2 means (x - 3) times itself twice.
(x - 3)(x - 3) multiplying polynomials- Firsts, Outs, Inners, Lasts (FOIL)
Firsts (x* x) Outs (x*-3) Inners (-3 * x) Lasts (-3*-3)
xx -3x -3x +9 Combine like terms.
-3x -3x Adding/subtracting integers- same signs means you add
and keep the sign.
x^2 -6x + 9
In Exercises 1-4, ill in the blank.
1. If the sum of the measures of two angles is 1809, the angles are
00
45
2. If the sum of the measures of two angles is 90%, the angles are
3. When two angles in a plane share a vertex and a side but no common interfor potnts, they
angles. Example: ZAOB and ZAOD.
are called
B
4. When two lines Intersect, they form two pairs of opposite" angles
called
angles
. Example: ZAOB and COD.
Answers
1. Supplementary
2. Complementary
3. Adjacent angles
4. Vertically opposite angles
Hope it helps. Please mark brainliest.
Why are equivalent equations important when solving a system using linear combination?
Answers
Answer:
Linear equations are an important tool in science and many everyday applications. They allow scientist to describe relationships between two variables in the physical world, make predictions, calculate rates, and make conversions, among other things. Graphing linear equations helps make trends visible.
Answer: Linear equations are an important tool in science and many everyday applications. They allow scientist to describe relationships between two variables in the physical world, make predictions, calculate rates, and make conversions, among other things. Graphing linear equations helps make trends visible.
Step-by-step explanation:
A football team played 38 games.
19 games were played at home and the rest were played away.
The team won a total of 21 games.
They drew 4 games away.
2 of the 10 games they lost were at home.
Copy and complete the two way table.
Answers
Answer: See explanation
Step-by-step explanation:
Won | Drawn | Lost | Total
Home | 14 3 2 19
Away | 7 4 8 19
Total | 21 7 10 38
49 ÷ 7 =
6 × 6 =
38 - 21 =
99 - 63 =
43 + 54 =
55 ÷ 5 =
87 - 44 =
94 - 63 =
144 ÷ 12 =
56 - 24 =
65 - 23 =
27 ÷ 3 =
47 + 31 =
52 + 46 =
70 ÷ 7 =
72 ÷ 9 =
98 - 22 =
42 + 17 =
64 ÷ 8 =
42 + 33 =
Answers
Answer:
use pemdas
Step-by-step explanation:
Answer:
7
32
17
36
97
11
43
31
12
32
42
9
78
98
10
8
76
59
8
75
Step-by-step explanation:
going straight down from the top
Can someone please solve these problems for me if you could do step by step that would rlly help me this is due Feb 14, 2021 please HELP only do 7- 10 please
Answers
Answer:
7. about 41.8 degrees or 0.72972 radians (used [tex]sin^{-1} (\frac{4}{6} )[/tex], because the given leg is opposite from the angle)
8. about 50.4 degrees or 0.87946 radians (used [tex]tan^{-1} (\frac{29}{24} )[/tex])
9. about 12.8 degrees or 0.224 radians (used [tex]sin^{-1} (\frac{12}{54} )[/tex])
10. about 51.3 degrees or 0.8957 radians (used [tex]cos^{-1} (\frac{25}{40} )[/tex], given leg is opposite from angle)
Step-by-step explanation:
S.O.H.--C.A.H.--T.O.A
sine = opposite (to angle)/hypotenuse
cosine = adjacent (to angle)/hypotenuse
tangent = opposite (to angle)/adjacent (to angle)
I didn't know if it was degrees or radians, so I did both! I saw you on the film question asking for help, so I just wanted to do so! Have a great day!
Help pls I will mark brainliest!!!
Answers
Answer:
7.5
Step-by-step explanation:
—3х - 7y = 5
—3х + 7y = -9. Someone help me please with this
Answers
Answer:
Step-by-step explanation:
Add them together
-6x = -4
X = 4/6 y = -1
Answer:(x,y)=(23/6,-5/14)
Step-by-step explanation:
I used an app so dont get mad if its wrong
Lia has a goal of walking at least 20 miles. She walks at a rate of 5 miles per hour. Which inequality can Lia use to find h, the number of hours she should walk in order to meet or exceed her goal? A. 5h ≥ 20 B. 5h ≤ 20 C. H+5 ≥ 20 D. H+5 ≤ 20
Answers
Answer:
5h ≤ 20 or h ≤ 4
Step-by-step explanation:
Lia walks at a rate of 5 miles per hour.
Lia has a goal of walking at least 20 miles
Let h be the number of hours she should walk in order to meet or exceed her goal.
At least in inequality means ≤. ATQ,
5h ≤ 20
Dividing both sides by 5.
h ≤ 4
So, she should walk atleast 4 hours. Hence, the correct option is (b).
If 1⁄50 of an amount is 12, what is 1⁄20?
Answers
what is the slope of y=-1/2x+4
Answers
Answer:
The slope is -1/2
Step-by-step explanation:
Hope this helps (:
Answer:
i love math anyways
The ans is in the picture with the steps how i got the ans
(hope that helps can i plz have brainlist :D hehe)
Step-by-step explanation:
what is the LCM of 3,24, and 2004
Answers
Answer:
4008 is the LCM between the two.
Carmen donates every 11th can of soup she buys. If she buys 77 cans, how many will she donate?
Answers
Carmen will donate 7 cans.
50 POINTS
I'll mark you brainliest just please respond ASAP
The graph below shows a company's profit f(x), in dollars, depending on the price of pencils x, in dollars, sold by the company:
Graph of quadratic function f of x having x intercepts at ordered pairs negative 0, 0 and 10, 0. The vertex is at 5, 160.
Part A: What is an approximate average rate of change of the graph from x = 2 to x = 5, and what does this rate represent? (3 points)
Part B: Describe the constraints of the domain. (3 points)
Answers
Answer:
A. The maximum represents the most amount of pencil price in dollars sold for the most amount of profit and the x-intercepts represent the profit when it is. The intervals at where the function increases represents a bigger profit for a price, whereas a decreasing interval represents a lower profit for a price.
Step-by-step explanation:
my answer for my test
The average rate of a function is 20 and for every $1 increase in the price of its pencils, the company's profit climbs by $20 on average.
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
Average rate of a function:
= (160-100)/5-2
= 20
For every $1 increase in the price of its pencils, the company's profit climbs by $20 on average.
Because prices are rarely negative, the domain is most likely confined to 0≤x. The price may be set so high that it yields a loss, but that is not a viable option. As a result, x ≤10 is the upper limit of the sensible domain.
Thus, the average rate of a function is 20 and for every $1 increase in the price of its pencils, the company's profit climbs by $20 on average.
Learn more about the function here:
brainly.com/question/5245372
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