solve the system by substitution 2x + 5y = - 3 and y = - 1
Answer:
x = 1
y= -1
Step-by-step explanation:
Plug in for y
2x + (5)(-1) = -3
2x - 5 = -3
2x = - 3 + 5
2x = 2
x = 1
You have to type up a 400 word paper. If you can type 25
words in 3 minutes, how long will it take you to type the
paper?
Answer:
48 minutes
Step-by-step explanation:
25=3 400/25=16x3=48
Answer:
48 minutes
Step-by-step explanation:
25 words - 3 minutes
400 words - x minutes
Cross multiply
25x = 400 x 3
25x = 1200
Divide both sides by 25
x = 1200/25
x = 48
En un examen de matemáticas por cada respuesta correcta se suman 7 puntos, y por cada incorrecta se pierden 9, si el examen tiene 10 preguntas, y se obtuvo una calificación de 6 puntos, ¿Cuántas preguntas correctas e incorrectas se obtuvieron? *
Si en el ejercicio anterior se obtuvieron -26 puntos en lugar de 6, ¿Cuántas preguntas correctas e incorrectas se obtuvieron? *
Answer:
iufiyutuiti7ti6ri6fu5eu5ru5s
Carla paid $129 plus 6% sales tax for a guitar. What
was the total cost of the guitar? PLEASE SHOW WORK!
Answer:
136.74
Step-by-step explanation:
6 percent of $129 is $7.74
129 plus 7.74 = 136.74
What is the solution for the equation?
14.8 = n minus 0.3
n = negative 15.1
n = negative 14.5
n = 14.5
n = 15.1
Answer:
D.
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
PLEASE HELP ILL GIVE BRAINLY!!!
answer is D have a great day :)
#1 use the pythagorean theorem to find the missing side of each right triangle
Answer:
Step-by-step explanation:
1-13
2-8
A local frame shop charges $5 per foot for the wood to make a frame. You want to have an 8 inch by 10 inch picture frame. How much will it cost?
Answer:15$
Step-by-step explanation:
divide R300 in the ratio of 1:2:3
Answer:
50:100:150
Step-by-step explanation:
300 / 1+2+3
300/6 = 50
50:50x2:50x3
50:100:150
Janice and her cousin Linda are a little competitive about the relative merits of their home towns. One contest they had was to determine who had more rainy days. They found weather records on the internet and each of them randomly selected 60 days from the past 5 years. Janice found that there had been measurable rainfall on 17 of the 60 days she selected for Asheville, and Linda found that there had been measurable rainfall on 12 of the 60 days she selected for Lincoln. They intend to perform a test of significance on their data, using the hypotheses When calculating the test statistic, what expression would they use to estimate the standard deviation of the sampling distribution of the difference in proportions,
Answer:
Following are the equation to this question:
Step-by-step explanation:
[tex]\to \frac{\sqrt{(.24)(.76)}}{60} + \frac{(.24)(.76)}{60}\\\\\to \frac{\sqrt{0.1824}}{60} + \frac{0.1824}{60}\\\\\to \frac{0.42708313}{60} + \frac{0.1824}{60}\\\\\to \frac{0.42708313+0.1824}{60} \\\\\to \frac{0.60948313}{60} \\\\\to 0.0101580522[/tex]
The following dot plot shows the mass of each rock in Nija's rock collection. Each dot represents a different rock.
Answer:
To find the total mass you will add the following masses together:
1/4 + 1/4 + 2/4 + 2/4 + 2/4 + 3/4 + 3/4
For every X you list the number that many times.
The sum is 14/4 or 3 2/4 or
3 1/2.
The answer is choice D.
Read more on Brainly.com - https://brainly.com/question/9499907#readmore
Step-by-step explanation:
Answer:
40.5Step-by-step explanation:
35 + 39 + 39 + 43 + 43 + 44 = 243gI know I may not be an expert, and my level is only ambitious, but I had to add this answer because recently, I've seen a lot of, "Ace's" or, "Genius's" getting answers wrong.
jack tripper has 5 girls in his home. He takes away 3 of them to do something that should not be named how many girls r left
Answer:
uh i think 2 i just want points
Step-by-step explanation:
The graphs of linear functions f and g are shown on the grid below.
Which function is best represented by the graph of g?
Answer: g(x)=3f(x)
Step-by-step explanation:
So we know it isnt a translation. Which eliminates the first 2 answer choices. So its between the last 2. If it were 1/3 the grap would have been steeper.
I hope this helps!
PLEASE HELP!
Find the sum of 12.4 and 372.6 using the correct number of significant digits.
A. 385
B. 385.0
C. 3850
D. 3850.0
Answer:
the answer is A
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
12.4+372.6=385
What's the answer????!!!???
Answer:
3997
Step-by-step explanation:
JUST SEARCH IT UP0202000202×0]2]×
The illustration below shows the graph of yyy as a function of xxx.
Complete the following sentences based on the graph of the function.
(Enter the xxx-intercepts from least to greatest.)
This is the graph of a
function.
The yyy-intercept of the graph is the function value y=\:y=y, equals
.
The xxx-intercepts of the graph (in order from least to greatest) are located at x=\:x=x, equals
and x=\:x=x, equals
.
The greatest value of yyy is y=\:y=y, equals
, and it occurs when x=\:x=x, equals
.
For xxx between x=2x=2x, equals, 2 and x=6x=6x, equals, 6, the function value y\:yy
\:000.
Answer:
This is the graph of a {\text{nonlinear function}}nonlinear functionstart text, n, o, n, l, i, n, e, a, r, space, f, u, n, c, t, i, o, n, end text.
The yyy-intercept of the graph is the function value y={{-6}}y=−6y, equals, minus, 6.
The xxx-intercepts of the graph are located at x={2}x=2x, equals, 2 and x={6}x=6x, equals, 6.
The greatest value of yyy is y={2}y=2y, equals, 2, and it occurs when x={4}x=4x, equals, 4.
For xxx between x=2x=2x, equals, 2 and x=6x=6x, equals, 6, the function value {y \, {\geq } 0}y≥0y, is greater than or equal to, 0.
Step-by-step explanation:
1 / 7
Let's use the graph to complete the sentences one by one.
Hint #22 / 7
A function with a constant rate of change produces a graph that is a line, and we say the function is linear. If the rate of change of the function is not constant, the graph will not be a line, and we say the function is nonlinear.
The graph shown is not a line. Therefore, we are looking at the graph of a nonlinear function.
Hint #33 / 7
The yyy-intercept of a graph is the value of the function when \red{x=0}x=0start color #df0030, x, equals, 0, end color #df0030. The yyy-intercept of this graph is the function value \blue{y=-6}y=−6start color #6495ed, y, equals, minus, 6, end color #6495ed.
Hint #44 / 7
The xxx-intercepts of a graph are the values of \red{x}xstart color #df0030, x, end color #df0030 for which \blue{y=0}y=0start color #6495ed, y, equals, 0, end color #6495ed. The xxx-intercepts of this graph are located at \red{x=2}x=2start color #df0030, x, equals, 2, end color #df0030 and \red{x=6}x=6start color #df0030, x, equals, 6, end color #df0030.
Hint #55 / 7
The maximum value of \blue{y}ystart color #6495ed, y, end color #6495ed occurs at the top of the bump in the graph. The coordinates of the top of the bump are (\red{4},\blue{2})(4,2)left parenthesis, start color #df0030, 4, end color #df0030, comma, start color #6495ed, 2, end color #6495ed, right parenthesis. Therefore, the maximum value is \blue{y=2}y=2start color #6495ed, y, equals, 2, end color #6495ed, and it occurs when \red{x=4}x=4start color #df0030, x, equals, 4, end color #df0030.
Hint #66 / 7
The graph of the function is above the xxx-axis for values of \red{x}xstart color #df0030, x, end color #df0030 between \red{x=2}x=2start color #df0030, x, equals, 2, end color #df0030 and \red{x=6}x=6start color #df0030, x, equals, 6, end color #df0030. For these values of \red{x}xstart color #df0030, x, end color #df0030, the function value y\geq 0y≥0y, is greater than or equal to, 0.
Hint #77 / 7
We can now complete the sentences:
This is the graph of a {\text{nonlinear function}}nonlinear functionstart text, n, o, n, l, i, n, e, a, r, space, f, u, n, c, t, i, o, n, end text.
The yyy-intercept of the graph is the function value y={{-6}}y=−6y, equals, minus, 6.
The xxx-intercepts of the graph are located at x={2}x=2x, equals, 2 and x={6}x=6x, equals, 6.
The greatest value of yyy is y={2}y=2y, equals, 2, and it occurs when x={4}x=4x, equals, 4.
For xxx between x=2x=2x, equals, 2 and x=6x=6x, equals, 6, the function value {y \, {\geq } 0}y≥0y, is greater than or equal to, 0.
Related content
OMG PLEASE HELP IF I DONT PASS THIS I FAIL MY CLASS! HELP! 30 POINTS SHOW WORK IF U NEED TO PLEASE! thank you too anyone(PRETTY PLEASE SHOW HOW YOU DID IT/can you show work)
Answer:
answer is c have a great day :)
Step-by-step explanation:
Henry is going to invest in an account paying an interest rate of 4.3% compounded
continuously. How much would Henry need to invest, to the nearest dollar, for the
value of the account to reach $820 in 13 years?
Answer:
63.0769230769
Step-by-step explanation:
Answer:
469 this was correct on Delta Math!!!
Step-by-step explanation:
What value of x makes the equation − 1 3 x + 6 = − 6 + 2 3 x true?
Answer:
4
Step-by-step explanation:
HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
the answers are down below
Step-by-step explanation:
1. 17/5
2. 31/4
3. 7/3
4. 3/2
5. 23/5
6. 20/3
7. 19/2
8. 35/4
9. 47/6
10. 21/4
I hope this helps :)
, what is the coefficient of x?
HELPPP !!!
Answer:
I GOTCHU THE ANSWER IS -10
Step-by-step explanation:
Answer:
2 x 3(the 3 is above the 2x) + 7 x 2(the 2 is above the 7x) − 18 x
Step-by-step explanation:
can I have brainliest please? :)
1000000000+10000-222
Answer:
1000009778
Step-by-step explanation:
1000009778
Step-by-step explanation:Have a good one!
(ㆆ_ㆆ)Evan and Dorinda make bracelets for a craft fair. Evan makes 10 bracelets the first day and 8 bracelets each day after that. Dorinda makes 8 bracelets the first day and 8 bracelets each day after that. If they make bracelets for 6 days, how many bracelets will they make in all? a. 567 b. 987653 c. 8765 d.65
Answer:
98 bracelets
Step-by-step explanation:
Number of days, n = 6
Evan:
= 10 + 8(n - 1)
= 10 + 8(6 - 1)
= 10 + 8(5)
= 10 + 40
= 50 bracelets
Dorinda
= 8n
= 8(6)
= 48 bracelets
Total bracelets they will make in all = Evan + Dorinda
= 50 + 48
= 98 bracelets
Solve for k 9k^3=1125
9k³ = 1125
k³ = 1125 : 9
k³ = 125
k = 5 (because 5³ = 5 * 5 * 5 = 125)
PLEASE HELP ME
180=3x+45
Answer:
3x=180-45
3×=135
3x/3x=135/3x
=45x
What is the approximate volume of the cylinder? Use 3.14 for it.
Answer:
226.08 cm^3 since volume
Step-by-step explanation:
Answer:
452.39
Step-by-step explanation:
The formula for volume is V=πr2h so you would add your numbers in and multiply (V=πr2h=π·42·9≈452.38934)
The sales tax rate in Connecticut is 6.35%. Megan wants to buy a jacket with a $45.00 price tag. She has a gift card to the store she wants to use. What amount needs to be on the gift card for Megan to be able to buy the jacket using only the gift card?
Answer:
$47.86
Step-by-step explanation:
A tax is a compulsory amount levied by the government or an agency of the government on goods and services
Taxes increases the price of goods and services. Thus, the amount paid would increase by the tax rate
Amount that needs to be on the gift card = amount of tax + price of the jacket
Price of the jacket = $45
Amount of tax = percentage tax rate x price of the jacket
0.0635 x $45 = $2.86
$45 + $2.86 = $47.86
After purchasing a home for $160,000, the homeowner noticed the suggested value of her house was depreciating (going down) each year by 5% for at least the 6 years she lived there
Answer:
Step-by-step explanation:
It’s c 111,734
Karley added 14 bottle caps to her collection. She
now has 54 boule caps. Write and solve an equation to
find the number of bottle caps she originally had.
PLEASE ANSWER !!
Answer:
54 - 14 = 30
Step-by-step explanation:
what is the slope of the line that goes through the points (4,25) and (-4,-21)?