Answer:
(x,y) = (-2, -1)
Step-by-step explanation:
We start off by substituting the value of "x".
5x+7y=-17
x=-[tex]\frac{5}{4} + \frac{3}{4}y[/tex]
We then solve 5[tex]5(-\frac{5}{4}+\frac{3}{4}y ) +7y= -17[/tex]
y=-1 *Substitute the value of "y"
x= -[tex]-\frac{5}{4}+\frac{3}{4}x(-1)[/tex]
x=-2
[tex]\left \{ {{-17=-17} \atop {-5=-5}} \right.[/tex] This works.
Find the value of y.
4(3x - 6) = 6(3x + 5)
please help my asap
Answer:
-9
Step-by-step explanation:
4(3x-6)-6(3x+5)
12x-24-18x-30
-6x-54
-6x=54
x= -9
Answer:
x=-9
Step-by-step explanation:
I used this website called symbolab
On a piece of paper graph y= 2x-3. Then determine which answer matches the graph you drew. (there is 4 options not just three)
Answer:
A
Step-by-step explanation:
since the slope (2) is positive the graph is similar to y=x, so graphs B and D are eliminated
so when x=1 we have
y=2(1)-3
y=2-3
y=-1
so the point is (1,-1), graph C eliminated
so it's A
The standard equation for finding the equation of a line is expressed as
y = mx + b
m is the slope of the line
b is the y-intercept
Before we can plot the equation of a line, we must know the slope and the y-intercept of such line.
Given the equation of a line to be plotted expressed as y = 2x - 3
Compared with the standard equation;
mx = 2x
m = 2
Hence the slope of the line is 2
Similarly;
b = -3
Hence the y-intercept is 3.
Find the required graph attached below:
Learn more here: https://brainly.com/question/17003809
please help meeee! !!!
Answer:
c) $ 12.00
Step-by-step explanation:
$78.20 x 15%= 11.75
round up
question:- why?
answer: ?
plz give the answer and i will mark you the brainliest just like that
Answer:
Make me brainliest for good luck
Step-by-step explanation:
can u guys plz help me?
-2(x-3) < 2x - 4
Answer:
2.5 < x or 5/2 < x
Step-by-step explanation:
Start by distributing the -2 to the parenthesized numbers.
-2*x and -2*-3
You end up with -2x and 6 (negative times a negative gets positive).
-2x+6 < 2x-4
Next you need to get your variables, x, on one side. It can be either but I like addition so lets take the -2x and move it to the opposite side.
You'll need to add 2x to both sides since its a negative number.
-2x(+2x)+6 < 2x(+2x)-4
-2+2 is 0 and 2+2 is 4.
6 < 4x-4
You want to get the variable alone now so you'll want to add the 4 to the other side (because its negative you add. If it was positive you'd subtract).
6(+4) < 4x-4(+4)
6+4 is 10 and -4+4 is 0.
10 < 4x
You want to divide out the 4 from 4x because you want the variable alone. Divide 4 from both sides
10(/4) < 4x(/4)
Now depending on if you want a variable or a fraction 10/4 can be 5/2 (simplified fraction) or 2.5 (decimal). 4x/4 gives you x.
2.5 (or 5/2) < x
Hope that helps.
3 more than the product of a number and 11
•write as a algebraic expression
Answer:
3+(t x 11)
Step-by-step explanation:
Answer:
3(x+11)
Step-by-step explanation:
Before beginning voice lessons, Martina already knew how to sing 18 pieces, and she
expects to learn 2 new pieces during each week of lessons. How many weeks of lessons will
Martina need before she will be able to sing a total of 24 pieces?
Answer:
Before beginning voice lessons, Martina already knew how to sing 18 pieces, and she
expects to learn 2 new pieces during each week of lessons. How many weeks of lessons will
Martina need before she will be able to sing a total of 24 pieces?
3(6+zw) = 6(w t3)
How many solutions
The temperature dropped 5 °F every hour for 5 hours. What was the total number of degrees the temperature changed in the 5 hours?
Answer:
25
Step-by-step explanation:
you just multiple 5 times 5
Answer:
it changed by 25 degrees
Step-by-step explanation:
for every hour it goes down by 5 and you have five hours so its
5+5+5+5+5
so basically its 5×5 and that equals 25
Help what is the answer to 7.26 divide by 5 and I also need the steps include Plz!!
Answer:
the answer is 1.452.
Step-by-step explanation:
7.26 ÷ 5 = 726 ÷ 500 = 1.452
hope this helps!
A physician's assistant measures a child and finds his height is 41 in.
At his last visit to the doctor's office the child was 38 in, tall. How much
did the child grow?
Answer:
He grew 4 inches since his last visit.
Step-by-step explanation:
41 - 38 = 4
8
Henry earned 5 dollars for each lawn he mowed. If he had 12 lawns to mow, but forgot
to mow 7 of them, how much money did he actually earn?
A $10
B $49
C $24
D $8
Plz help
Answer:
huh that's weird there should be an answer for 25
Step-by-step explanation:
The question is in the picture above. Please help
Answer:
it is 1
Step-by-step explanation:
A 6-ounce package of fruit snacks contains 45 pieces. How many pieces would you expect in a 10-ounce package?
Answer:
The answer is 75
please help me! WILL MARK BRAINLIEST
Answer:
100
Step-by-step explanation:
455=94x22^2/r
455=94x484/r
455=45496/r
0.01=1/r
100=r
Solve:
6 = 8 + 2
a =?
Answer:
4
Step-by-step explanation:
Which expression is equivalent to −2.1+(−5.9)+(−3.7) ?
(2.1+5.9)+(−3.7)
−(2.1−5.9)+(−3.7)
−2.1−(5.9+3.7)
(2.1+5.9+3.7)
Answer:
-2.1-5.9-3.7
-117/10
-11.7
Step-by-step explanation:
Answer:
-(2.1 - 5.9) + (-3.7)
Use a number line to show why this is true.(+3)-(-2)=(+3)+(+2)
Answer:
It is true - multiply by - is equal to +
so
3-(-2)=3+2
3+2=3+2
5=5
so
its true in mathematically form
Step-by-step explanation:
Zoey signed up for a streaming music service that costs $7 per month. The service allows Zoey to listen to unlimited music, but if she wants to download songs for offline listening, the service charges $0.75 per song. How much total money would Zoey have to pay in a month in which she downloaded 45 songs? How much would she have to pay if she downloaded s songs?
Answer:
the answer is 60 $ but with the charge of 7 its 67.
Step-by-step explanation:
45 divided by 0.75 is 60.
Answer:
Cost for 45 songs: 40.75
Cost for s songs: 0.75s + 7
Step-by-step explanation:
Since its $0.75 per song, you have to multiply 0.75 to 45. You already need to pay $7. The equation would be 0.75s + 7 and the answer would be 40.75.
What is 28 divided by 1,000
Answer:0.028
Step-by-step explanation:
Answer:
0.028
Step-by-step explanation:
I used a calculator.
Jessie, Kristen, and Kendall all went shopping together and bought shirts. Kristen bought a shirt that cost $8.50. Jessie's shirt cost $12.75. If their total bill was $39.45 how much did Kendall's shirt cost?
Answer:
Kendall's shirt was $18.20.
Step-by-step explanation:
39.45 - 8.50 - 12.75 = 18.20
Rewrite as a simplified fraction. 0.8 95
Answer:
[tex] \frac{179}{200} [/tex]
Hope this is correct and helpful
HAVE A GOOD DAY!
If three planes intersect then their intersection is a line.
Answer:
Always true
Step-by-step explanation:
Three Planes Intersecting in a Line, Three Parallel Planes.
Examine the two-step equation
7
-2
4 4
Which property of operations allows you to add the same constant term to both sides?
O multiplication property of equality
division property of equality
O addition property of equality
subtraction property of equality
1) Intro
Answer: addition property of equality
Step-by-step explanation:
Answer:
Addition property of equality (C)
Step-by-step explanation:
Edge unity
2021
Convert 49°F to degrees Celsius.
If necessary, round your answer to the nearest tenth of a degree
Here are the formulas.
Answer:
9.44444
Step-by-step explanation:
3х + 5 = 3х + 5
What solution is this?
What is the difference of the fractions? Use the number line and equivalent fractions to help find the answer. Negative 2 and one-half minus (negative 1 and three-fourths) A number line going from negative 3 to 0 in increments of One-fourth. A Negative 4 and one-fourth B –4 C Negative three-fourths D Negative one-half
Answer:
B
Step-by-step explanation:
because that is were you plot it on the number line
Answer:
B
Step-by-step explanation:
Got it right on my test.
10) A market has 60 cupcakes
for sale. Of those %s are
chocolate. How many are not
chocolate?
Answer:
36
Step-by-step explanation:
Paul bought a student discount card for the bus. The card allows him to buy daily bus passes for $1.30.
After one month, Paul bought 21 passes and spent a total of $33.30.
Help pls
Answer:
Paul spent 6 dollars on the student discount card.
Step-by-step explanation:
If each pass is $1.30, simply divide 21 by 1.30
You should get 27.30
Next, subtract 33.30 by 27.30, getting 6.
