Answer:
the third one
Step-by-step explanation:
Answer:
The 3rd
Step-by-step explanation:
Solve the simultaneous equations
2x + 4y = 1
3x - 5y = 7
y=1.5 x=
What does x equal
Answer:
The solution to the system of equations be:
x = 0.5, y = -0.5
Step-by-step explanation:
Given the system of equations
[tex]\begin{bmatrix}2x+4y=1\\ 3x-5y=7\end{bmatrix}[/tex]
Multiply 2x+4y=1 by 3: 6x+12y=3
Multiply 3x-5y=7 by 2: 6x-10y=14
[tex]\begin{bmatrix}6x+12y=3\\ 6x-10y=14\end{bmatrix}[/tex]
subtracting the equations
[tex]6x-10y=14[/tex]
[tex]-[/tex]
[tex]\underline{6x+12y=3}[/tex]
[tex]-22y=11[/tex]
solve -22y for y
[tex]-22y=11[/tex]
Divide both sides by -22
[tex]\frac{-22y}{-22}=\frac{11}{-22}[/tex]
Simplify
[tex]y=-\frac{1}{2}[/tex]
[tex]y = -0.5[/tex]
For 6x+12y=3 plug in y = -1/2
[tex]6x+12\left(-\frac{1}{2}\right)=3[/tex]
[tex]6x-12\cdot \frac{1}{2}=3[/tex]
[tex]6x-6=3[/tex]
Add 6 to both sides
[tex]6x-6+6=3+6[/tex]
[tex]\frac{6x}{6}=\frac{9}{6}[/tex]
Simplification
[tex]x=\frac{3}{2}[/tex]
[tex]x = 1.5[/tex]
Therefore, the solution to the system of equations be:
x = 0.5, y = -0.5
Evaluate the expression 6x+8 when x=2
The value of the expression is
Rory scored more than 12 points in his basketball game last night.
Select the inequality and number line that represent the number of points, p, Rory scored.
p > 12
p < 12
p = 12
Answer:
p > 12, p = 12
Step-by-step explanation:
She said she scored more than 12. It could be equal too.
Answer:
I am late on this but it could help some other people!
Step-by-step explanation:
Option A because it shows that the value of his score is greater than 12.
Translate each sentence into an equation.
Five more than three-fourths a number is -19. (Solve after please!)
Step-by-step explanation:
3/4x+5=-19
-5 -5
3/4x=-24
/ 3/4 / 3/4
x=-32
hope it helps! :3 let me know if you need help with other algebraic equations!
Hi. Please help me will give brainliest
Answer:
A = 720g
Bi = 480g
Bii = 2
Plz help me I'm too Du-mb
Answer:
5
Step-by-step explanation:
You must have x alone
Answer:
5
Step-by-step explanation:
everyone else is smarter than me
2) A pair of socks is purchased for $3.00 it is then sold for $4.00 What is the percent of change that
occurred? Is it a percent increase or decrease?
Answer:
5% change
Step-by-step explanation:
Answer:
33 was the change and it incressed
Step-by-step explanation:
Question
A tub of margarine measures 4 cm by
6 cm by 10.5 cm
What is the volume of the tub?
Tim has 5 apples and 3 bags with 8 apples in each bag. How many apples does Tim have in all?
Ok so before you even tell me the answer please tell me like in numbers like how do I show my work
Answer:
Step-by-step explanation:
Please help picture attached.
Answer:
12
Step-by-step explanation:
Think of this as a normal calculation at first.
Just focusing on the numbers themselves (not the roots) let's do the calculation.
8 × 18 = 144
Let's put the square roots back into play.
√144
And we know what the square root of 144 is (12).
What is the y-intercept of the function below?
y= 2x + 7????
Answer:
(0,7)
Step-by-step explanation:
This equation is already in slope-intercept form, (y=mx+b), where m is the slope, and b is the y-intercept.
From the equation, we see that (0,7) is the y-intercept.
Let me know if this helps!
Find QR.
Q
6
560
R
S
Write your answer as an integer or as a decimal rounded to the nearest tenth.
QR =
Answer:
QR ≈ 5.0
Step-by-step explanation:
Using the sine ratio in the right triangle
sin56° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{QR}{QS}[/tex] = [tex]\frac{QR}{6}[/tex] ( multiply both sides by 6 )
6 × sin56° = QR , then
QR ≈ 5.0 ( to the nearest tenth )
Britt has decided that she wants to earn $4,000 over the next 10 months to set aside for a down payment on a car. Britt currently works some afternoons and evenings babysitting. She makes $8 per hour. At this pay rate, how many hours will Britt need to work each month to accomplish her goal?
This question is dealing with rates. Rates are just to show a measure of what we are to use, give or pay e.t.c per time as the case may be.
Britt needs to work 50 hours each month to accomplish her goal.
She wants to make $4,000 and she makes $8 per hour.
This means, amount of hours she need to make $4,000 is;
4000/8 = 500 hours
Since she wants this money over 10 months, it means every month she needs to work; 500/10 = 50 hours per month.
In conclusion, britt needs to work 50 hours each month to accomplish her goal.
Read more at; brainly.com/question/22168046
The ratio of girls to boys in Liza’s classroom is 5 to 4.
How many girls are in her classroom if there is a total of 27 students?
12
9
54
15
Answer:
15
Step-by-step explanation:
5+4=9
27÷9=3
girl's ratio is 5 so
5×3=15
answer is 15
\dfrac32=5d-\dfrac12
2
3
=5d−
2
1
what is 6+5+3x54+375
Answer: 548 but if you meant to put an x instaed of * it'll be 3x^54+386
Step-by-step explanation:
Answer:
i think 548 or 21
Step-by-step explanation:
4 (3 – 5x) = 15 – (8x – 25)
Answer: 37/3 is the answer
Step-by-step explanation:
Answer:
5 is the answer
Step-by-step explanation:
Which value of k can be multiplied by -8 resulting in a product smaller than -8? A. 1/4. B.4. C.-4. D.-1/4
Answer:
B.) i think
Step-by-step explanation:
The 14th Street Bakery baked 4562 cookies for an upcoming giveaway. They are giving away 101 boxes of cookies, each with the same amount of whole cookies. Which of the following statements is true?
Answer:
?? what are the answer choices?
Step-by-step explanation:
Categorize the graph as linear increasing, linear decreasing, exponential
growth, or exponential decay.
A.Exponential decay
B. Linear decreasing
C. Linear increasing
D. Exponential growth
Answer:
B
Step-by-step explanation:
Since the graph shows a straight line and not a curved graph, this is a linear equation.
And since the line is sloping downwards, it is decreasing.
Our final answer is linear decreasing.
The category of the function of the graph in the figure is a (b) Linear decreasing graph
How to determine the graph category?Any graph that is represented by a straight line is a linear graph
The above statement means that the graph is a linear graph because it is represented by a straight line.
The orientation of the line also means that:
As x increases, the value of y decreases
Hence, the category of the graph is a (b) Linear decreasing graph
Read more about linear graphs at:
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What is the completely simplified form of the expression 2(1 – 3x) – (5x + 1)?
Answer:
i think it's 11x-1
Step-by-step explanation:
2(1-3x)-(5x+1)
2-6x-5x-1
2-11x-1
11x-1
Neil places £2,000 in a bank account that pays 1.5% simple interest per year.
How much interest will he earn in 6 years?
Answer:
He will earn £186.89 interest
Step-by-step explanation:
final = original x multiplier^n
final = 2000 x 1.015^6
final = 2186.886528
Interest = final - original
Interest = 186.8865
The ratio of men to women working for a company is 7 to 5. If there are 312 employees total, how many women work for the company
If cot(theta)=1.5 and theta is in quadrant 3, what is the value of sin theta
[tex]ans = \boxed{ 0.6}[/tex]
[tex]since \: cot( \theta)= \frac{1}{ \tan( \theta) } \\ \frac{1}{ \tan( \theta) } = 1.5 \\ (1.5)\tan( \theta) = 1 \\ \tan( \theta) = \frac{1}{1.5} = 0.6666666667 \\ \theta = { \tan}^{ - 1} (0.6666666667) \\ \theta = 33.69 \\ hence: \sin( \theta) = \sin(33.69) = 0.5546992156[/tex]
GIVING 50 POINTS TO ANSWER. PLS ANSWER ASAP. I MARK BRAINLIEST.
Answer:
you can do it !! .. here's how
Step-by-step explanation:
slope = rise / run
pick any two coordinates that the line goes through
set up the equation using the y - coordinates at the top and the x- coordinates on the bottom
subtract the two y - coordinates and then the x-coordinates
then you will get your answer.
hope this helps
the mean of two numbers is 7.
the range of these two numbers is 8.
what are these two numbers?
The unknown two numbers are 11 and 3 where the mean of two numbers is 7 and the range of these two numbers is 8.
What are mean?The mean is the average value which can be calculated by dividing the sum of observations by the number of observations
Mean = Sum of observations/the number of observations
The range of a given set of data is defined as the difference between the largest value and the smallest value.
Given that the mean of two numbers is 7 and the range of these two numbers is 8.
Let the pair of number be 11 and 3
11 + 3 = 14
14 / 2 = 7
Mean = 7
Also, the difference between the numbers are;
11 - 3 = 8
Range = 8
Therefore, the unknown two numbers are 11 and 3 where the mean of two numbers is 7 and the range of these two numbers is 8.
Learn more about mean;
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A circle has a radius of 8 cm. A good estimate for the circumference of the circle is 24 cm.
True
False
Answer:
false
Step-by-step explanation:
answers is 50.27
What is the circumference of this circle, in centimeters? (Fake question)
Answer:
3,o217383737283636666666666678899
Answer:
5
Step-by-step explanation:
is logical .... ...........
Based on the spinner shown, what is the probability of the next spin landing on a vowel?
A
Ή
B
с
F
D
E
Done-
Answer:
Step-by-step explanation:
Here is the spinner, and the answer would be 1/4.
The probability of the next spin landing on a vowel is 2/7.
What is probability?Probability is the chance of occurrence of a certain event out of the total no. of events that can occur in a given context.
Given, A spinner labeled A, H, B, C, F, D, and E.
We know, The ratio of favorable events to unfavorable events for a given event is known as the odds in favor.
The total number of letters is 7 and the number of vowels is 2.
Therefore, The probability that the spinner will land on a vowel is,
= 2/7.
learn more about probability here :
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Work out 3/4 + 4/7 what is the answer to this question
Answer:
1 and 9/28
Step-by-step explanation:
you need to put everything over the same denominator
21/28+16/28=37/28
this can be written as 1 9/28