Answers
Answer:
Step-by-step explanation:
1). (B). Replace one equation with the sum/difference of both equation.
System B is
- 4x - 6y = 9 ........ (1B)
-4x + 3x = - x
- 6y + y = - 5y
9 - 4 = 5
- x - 5y = 5 ........ (2B)
2). Yes, both system are equivalent.
Related Questions
PLS HELP, WILL REWARD BRAINLIEST!!
Answers
Answer:
Step-by-step explanation:
What is the value of (23−19)×43−59?
Answers
Answer:
=113
Step-by-step explanation:
Hoped I helped...
Answer:
C - 35
Step-by-step explanation:
Answer.
n order to prevent injury from weight training, before you begin an exercise program, it would be most important to __________.
A.
identify your goals
B.
perform muscular fitness testing
C.
decide when you will train
D.
identify the resources you have available
Please select the best answer from the choices provided.
A
B
C
Answers
Answer:
B on EDGE Perform Muscular Fitness training
Step-by-step explanation:
Answer:
B. perform muscular fitness testing
Step-by-step explanation:
CAN SOMEONE PLS HELP QUICK
Answers
Answer:
[tex]2\frac{1}{4}[/tex]
Step-by-step explanation:
Operations With Fractions
Simplify the following operations:
[tex]\displaystyle -5\frac{1}{4}-\left(-7\frac{1}{2}\right)[/tex]
Convert the mixed fractions to improper fractions:
[tex]\displaystyle 5\frac{1}{4}= 5+\frac{1}{4}=\frac{21}{4}[/tex]
[tex]\displaystyle 7\frac{1}{2}=7+\frac{1}{2}=\frac{15}{2}[/tex]
Substituting:
[tex]\displaystyle -5\frac{1}{4}-\left(-7\frac{1}{2}\right)=-\frac{21}{4}-\left(-\frac{15}{2}\right)[/tex]
Simplifying:
[tex]\displaystyle -5\frac{1}{4}-\left(-7\frac{1}{2}\right)=-\frac{21}{4}+\frac{15}{2}[/tex]
Amplifying the second fraction by 2:
[tex]\displaystyle -5\frac{1}{4}-\left(-7\frac{1}{2}\right)=-\frac{21}{4}+\frac{30}{4}[/tex]
Adding both fractions:
[tex]\displaystyle -5\frac{1}{4}-\left(-7\frac{1}{2}\right)=\frac{9}{4}=2\frac{1}{4}[/tex]
Answer: [tex]\mathbf{2\frac{1}{4}}[/tex]
The perimeter of a rectangle is 208 inches. The ratio
of its length to its width is 5:3. What are the
dimensions of this rectangle?
A. 60 in by 44 in
B. 65 in by 39 in
C. 68 in by 36 in
D. 72 in by 32 in
Answers
Answer:
65 in and 39 in respectively
Step-by-step explanation:
Let r be the common ratio; when we multiply both L and R by this common ratio, we'll get the actual length and actual width of the rectangle, Recalling that the formula for the perimeter of a rectangle is P = 2L + 2R, we get:
2(5r) + 2(3r) = 16r = 208 in
Then r = 208/16 = 13
Thus, the actual length is 5(13 in) and the actual width is 3(13 in.),
or 65 in and 39 in respectively.
As a check, calculate 65 in / 39 in; this comes out to 5:3, as required.
Then
Sarah is trying to run a certain number of miles by the end of the month. If Sarah is 80% of the way to achieving her goal and she has already run 40 miles, how many miles is she trying to run by the end of the month?
Answers
Answer: 50 miles
Step-by-step explanation:
Let the miles that she is trying to run by the end of the month be denoted by x.
Since she is 80% of the way to achieving her goal and she has already run 40 miles. This can be expressed as:
80% of x = 40
80/100 × x = 40
0.8x = 40
x = 40/0.8
x = 50
The miles that she is trying to run by the end of the month is 50 miles.
Toya is training for a triathlon and wants to
bike and run on the same day. She has less
than 3 hours to spend on her workouts. What
inequality represents the time Toya has to
bike and run? What is the graph of the
solution set?
Answers
Answer:
123
Step-by-step explanation:
ponuts
Amy had 0.87 litre of cold drink. Flora had 0.92 litres more cold drink. How much cold drink did Flora have?
Answers
Answer:
1.79 of cold drink
Answer:
0.05
Step-by-step explanation:
0.92 - 0.87 is 0.05.
sorry, i'm not the best at explaining things. i just kept it simple:)
solve for x 2(4x-1)>2(2x+7)
Answers
Answer:
x>4
Step-by-step explanation:
In order to train for cross-state biking trip, Julie rides her bike 34.65 miles five times a week. How many total miles does she ride each week?
Answers
Answer:
173.25 miles
Step-by-step explanation:
do 34.65 x 5 to get the answer.
hope this helps!
PLEASE help me asap what is the answer to this
Answers
Answer:
TUVW
Step-by-step explanation:
A ride-sharing company claims that the cost of rides follows a Normal distribution with a mean of $10.52. After
paying for a ride from this company, a rider reports that his price is in the 85th percentile of all other riders' prices. If
this rider paid $15.93, what is the approximate standard deviation of this company's ride-sharing cost?
Answers
Answer:
$5.20
Step-by-step explanation:
According to the Z-Score chart, the 85th percentile has a z-score of 1.04 and if you put that in the z-score equation (15.93-10.52)/x=1.04. Solve for x and you get $5.20.
Solve the equation for the given variable.
9(5x+3)+2x−8=47x+28
pls hurry I need help ill give you brainlest
Answers
Answer:
No solution
Step-by-step explanation:
45x + 27 + 2x - 8 = 47x + 28
47x + 19 = 47x + 28
19 = 28
19 can never equal 28
determine the true statements about trend lines in scatterplot. Check all that apply
Answers
Answer:
what
Step-by-step explanation:
theres no answers?
Answer:
(A) A trend line can be used to make predictions in real-world situations.
(B) A scatterplot that shows no correlation between the variables does not have a trend line.
(D) A regression line and trend line are equivalent terms.
Step-by-step explanation:
John took a 5 1/2 mile walk to his friend's house. He left at 11 a.M. And arrived at his friend's house at 12:45 p.m What was his average speed of walking in miles per hour?
Answers
speed = 3.14 mph
You and four friends are going to Magic Mountain. It cost $20 to park your car and you spend $445 total just to get into the park. Solve to find the price per ticket. Please remember this is money.
Answers
Answer:
$85
Step-by-step explanation:
445-20=425 425 ÷5= 85
How much felt is used to make the flag?
Answers
Answer:
i can't see it
Step-by-step explanation:
it's blury.
Can somebody help me please
Answers
Answer:
[tex]\frac{6}{22}[/tex]
Step-by-step explanation:
[tex]\frac{6}{11}[/tex] × [tex]\frac{1}{2}[/tex] = [tex]\frac{6*1}{11*2}[/tex] = [tex]\frac{6}{22}[/tex]
Simplify 3^6 divided by (1/3)^-8
Answers
Answer:
0.11111111111
Step-by-step explanation:
how do you use electromagnetic spectrums to learn more about stars and planets?
Answers
Answer: Telescopes use lenses or mirrors to collect and focus waves from the electromagnetic spectrum, including visible light, allowing us to look at celestial objects. By studying the electromagnetic waves given off by objects such as stars, galaxies, and black holes, astronomers can better understand the universe.
Step-by-step explanation:
8. What is x
9. What is the measure of angle ABD
10. What is the measure of angle DBC
(PS the numbers by the = sign are not the answers and could someone please help)
Answers
Answer:
x=10
ABD= 101
DBC= 79
Step-by-step explanation:
hope that this helped and I ise go formative too btw
i'll give brainliest!!! please help!
Answers
Answer:
Puritans believed that people (children in particular) were inherently bad (sinners) and had to learn to behave. Salvation lay in learning to check one's natural instincts and behave as an adult.
Choose the best answer. What is the value of the expression x + (-y) when x = 1.2
and y = -10.72
-9.5
11.9
-11.9
9,5
Answers
Answer:
[tex]-9.5[/tex] is the best answer.
Step-by-step explanation:
Given the expression
[tex]x + (-y)[/tex]
putting x=1.2 and y=-10.72 in the expression
[tex]x\:+\:\left(-y\right)=1.2\:+\:\left(-10.72\right)[/tex]
[tex]=-9.52[/tex]
Therefore, -9.5 is the best answer.
Each day a machine makes 500000 staples and puts them into boxes.
The machine needs 165 staples to fill a box.
How many boxes will be filled with the 500,000 staples?
Answers
Answer:3031 boxes will be filled with staples
Step-by-step explanation:
Given that the machine makes 500000 in a day
So total staples = 500000
Staples in a box = 165
In order to find how many boxes the machine will make, the total number of staples has to be divided by the number of staples in a box.
So,
[tex]number\ of\ boxes = \frac{Total\ staples}{Staples\ in\ a\ box}\\= \frac{500000}{165}\\= 3030.30[/tex]
As no staples can be left out of box, we will round off the number to next number.
So,
3031 boxes will be filled with staples
Answer:
3031 boxes
Step-by-step explanation:
3.5 h+4.5)= 57 whats the value for h
Answers
Answer:
♡ hi there, fairy ♡
- h is 15 because 57-4.5=52.5/3.5=15
have a great day.
✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧
Step-by-step explanation:
Answer:
The answer is h=15
Step-by-step explanation:
3.5 h+4.5)= 57
Let's solve your equation step-by-step.
3.5h+4.5=57
Step 1: Subtract 4.5 from both sides.
3.5h+4.5−4.5=57−4.5
3.5h=52.5
Step 2: Divide both sides by 3.5.
3.5h/3.5=52.5/3.5
h=15
Answer: h=15
Please help me asap help. The other two options are 6 2/8 and 6 1/4
Answers
Answer:
6 1/2
Step-by-step explanation:
To double the recipe we would need to multiply all the ingredients by 2. But since it is asking about the peaches, we only need to multiply 3 1/4 by 2. First we make the 3 1/4 to an improper fraction. (multiply denom. by the 3 then add the numerator. then keep the same denominator). The improper fraction of 3 1/4 would be 13/4. Now we can multiply by 2. That would give us 26/4 which reduces to 13/2. To change this back to a mixed number, we divide 13 by 2. That would give us 6 with a remainer of 1. So our answer is 6 1/2. Sorry if it's confusing hope it helps :)
if 33 laptops cost 30,000, what proportion could be used to determine the cost of 11 laptops?
Answers
Answer:
30,00 divided by 33= 909.09 times 11=9,999.99 hope it helps you
Step-by-step explanation:
The fabric for a dress costs $180 for 9 yards.
What is the cost per yard?
Answers
Answer:
$20
Step-by-step explanation:
because it wants the cost per yard so you need to do the amount ($180) and divide by the yards (9) so you do 180 ÷ 9 = 20
So there for, you get $20
If this helpped and my explanation was good then please mark brainliest hope you have a good day!
What is the value of the expression when b = 2 and c = –3? Enter your answer in the box.
Answers
Answer:
The answer to your question thinking that you're multiplying is -6
Step-by-step explanation:
The value of the expression b²+ c², when b = 2 and c = –3, is 13.
What is an expression?One mathematical expression makes up a term. It might be a single variable (a letter), a single number (positive or negative), or a number of variables multiplied but never added or subtracted. Variables in certain words have a number in front of them. A coefficient is the number used before a phrase.
Given:
We have an expression,
b²+ c².
The value of the expression when b = 2 and c = –3,
= (2)²+ (-3)²
= 4 + 9
= 13
Therefore, the value is 13.
To learn more about the expression;
brainly.com/question/24242989
#SPJ6
The complete question:
What is the value of the expression b²+ c², when b = 2 and c = –3?
(Quick I'm being timed)
Find the value of the variable using these steps.
0.4x + 3.9 = 5.78
1. Subtraction property of equality
2. Division property of equality
X = ____
Answers
Answer:
x = 4.7
Step-by-step explanation:
You will need to subtract 3.9 from 5.78, then divide by 0.4. The answer is 4.7 because you are left with x = 4.7.
Hope this helps you!