the following linear system is to be solved using the elimination method. 5x + 7y=0 x+ 4y= -1 the first step would be to
A. add the equations
B. subtract the equations
C. multiply the first equations by 5
D. multiply the second equation by 5

Answers

Answer 1
The correct answer would be D Have a nice day

Related Questions

answer asap pleaseeee

Answers

Answer:

4!!

Step-by-step explanation:

please help me..for some reason its not letting me print out the question because it says *dont use such phrases* but anyways

Answers

She can make two triangle gardens with the six pieces of wood she has
She can make 2 triangles because she only has 6 pieces

HELP ME ASAP !!!!! WILL MARK BRAINLIEST!!!


During a road trip, Daysia keeps track of the time she spends driving, t, and the distance she drives, d. Which best describes the variable t and d ? Choose the correct answer.

a
The variable d, distance is the independent variable because it determines the amount of time spent driving, t.

b
The variable d, distance is the dependent variable because it depends on the amount of time spent driving, t.

c
The variable d is independent of variable t, and variable t is independent of variable d.

d
Both variables are dependent variables because they depend on the speed at which Daysia drives

Answers

The correct answer is a
The answer is A Step By Step :

Three shipping companies want to compare the mean numbers of deliveries their drivers complete in a day.

The first two shipping companies provided their data from a sample of drivers in a table.

Company C showed its data in a dot plot.


Answer the questions to compare the mean number of deliveries for the three companies.

1. How many drivers did company C use in its sample?


Write your answer in the space below.















2. What is the MAD for company C's data? Show your work.


Write your answer in the space below.















3. Which company had the greatest mean number of deliveries?


Write your answer in the space below.















4. Compare the means for companies A and B. By how many times the MAD do their means differ? Show your work.


Write your answer in the space below.

Answers

Answer:

#1 is 10

# 2 is

6 + 7 + 8 + 9 + 10 + 10 + 10 + 12 + 14 + 14 = 100/10. The (Mean) = 10

(6- 10) + (7- 10) + (8- 10) + (9- 10) + (10- 10) + (10- 10) + (10- 10) + (12- 10) + (14- 10)

4 + 3 + 2 + 1 + 0 + 0 + 0 + 2 + 4

= 16/10 = 1 6/10

The (MAD) = 1 6/10

#3 Groups A & B

#4 sorry I can’t figure this out but I did 1/2/3

Drag each equation to show if it could be a correct first step to solving the equation 2(x+7)=36.

Answers

The second is Yes
Sixth is Yes
First is No
Fourth is No
Fifth is No
Third is Not Enough Info
And last x=11

Answer:

Here you go

Step-by-step explanation:

Hope this helps :)

Mrs. Ruiz bought 6 gallons of gas for $18.18, 9 gallons of gas for $27.27, and 16 gallons for $48.48. Is the rate of change constant?

Answers

Answer:

one gallon is 3.03 dollars. I don't know is that helps.

Step-by-step explanation:

18.18/6=3.03

27.27/9=3.03

48.48/16=3.03

Answer:

62.93

Step-by-step explanation:

add the money and subtract it from the gallons

pls i'll mark u brainliest

Answers

Answer:

The picture is unavaiable : /

Step-by-step explanation:

please healp i give brainlyest i give 17 points
how many inches are in 2.5 yards?
A)0.011 inches
B)0.033 inches
C)7.5 inches
D)90 inches

Answers

Answer:

D) 90 inches

Step-by-step explanation:

There are 36 inches in a yard (3 feet)

To find how many inches, multiply the numbers.

2.5 × 36

90 inches

d 90 inches
there’s 3 feet

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Answers

Answer:

y....

Step-by-step explanation:

.f....*hdgdgdaggdfsgygj

Answer:

9

Step-by-step explanation:

Coefficient is a number that is being multiplied by the variable.

Justin wants to teach a hip-hop dance workshop. The cost of renting a dance studio is $149.50 plus $13 per person attending the workshop. Just can spend $323 at most to rent the space. What is the greatest number of people Justin can allow to attend the workshop? *



A. 13 people

B. 14 people

C. 28 people

D. 29 people

Answers

a. 13

first I subtracted 323 and 149.5 to get 173.5 I did this beacause you want to find out how much is left, then I divided 173.5 by 13 and got 13.

Answer:

A. 13 people

Step-by-step explanation:

The equation is 13x + 149.50 ≤ 323

Step 1: Subtract 149.50 from both sides.

13x + 149.5 − 149.5 ≤ 323 − 149.5

13x ≤ 173.5

Step 2: Divide both sides by 13

13x/13 ≤ 173.5/13

x<13.346154

Since you cant have 13.34 of a person you have to round to 13

So, the greatest number of people Justin can allow to attend the workshop is 13 people

John has a coin and a spinner with 4 equal sections, one colored red, one blue, one colored green, and one colored, purple. Create a tree diagram then determine the total number of possible outcomes. (I just need the total possible outcomes as your final answer)

Answers

Answer:

Heads/red

Heads/green

Heads/purple

Heads/blue

Tails/red

Tails/green

Tails/purple

Tails/blue

Possible outcomes: 8

The larger the number in standard notation, the ____________ the exponent on base 10.

Answers

Larger I think, sorry if that’s wrong.
The larger the number in standard notation, the larger the exponent on base 10.

I need help with these please

Answers

Answer:

how many have you posted already-

Step-by-step explanation:

HELPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

35 degrees

Step-by-step explanation:

Step 1) All triangles are 180 degrees.

Step 2) Add up the angles that are shown so far. 102+43= 145 degrees

Step 3) How many degrees can be added to 145 to make 180 degrees?    Subtract 145 from 180 to get 35 degrees.

Answer: X equals 35 degrees

Help??? thank youuuuu :)

Answers

Answer:

B. 53 degrees

Step-by-step explanation:

The entire thing has to equal 180 degrees. So, I subtracted 127 degrees from 180 and got 53 degrees.

Plz mark as brainliest.

Have a good day and good luck!

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Answers

Answer:

13p

Step-by-step explanation:

12p+1p

(12+1)p

13p

13p

12p+1p
12+1= 13
13 add the p onto the end which equals 13p

Tom has saved $128, and his goal is to save $500. How much more must he save? Which equation BEST represents this situation?
A) x + 128 = 500
B) x - 128 = 500 Eliminate
C) x + 500 = 128
D) x - 500 = 128

Answers

i think the answer is A
A. x + 128 = 500 is the answer

Sophie bikes at a speed of s MPH and Rana bikes at a speed of r Mph. Rana took a bike ride that was m mile long. How long did she spend biking?

Answers

Answer:

r/m

Step-by-step explanation:

you need to have speed over distance to tell how long rana webt

Answer:

For this problem I got (20/r)-(20/s).  

Step-by-step explanation:

Please answer the question below. Answer needed by tonight. Will give brainliest!

Answers

Answer:

120 cm

Step-by-step explanation:

10 x 6 = 60

60/2 = 30

30 x 4 = 120

120cm

10 x 6 is 60

60 divided by 2 is 30

30 x 4 is 120

When a number is decreased by 4%, the result is 66. What is the original number to the nearest tenth?

Answers

Answer:

68.8

Step-by-step explanation:  

100% = x number  

96% = 66  

so 100%  

= 68.75  

to the nearest tenth is 68.8

68.8 is the correct answer.

WILL GIVE BRAIN DONT ANSWER IF YOU DONT KNOW PLEASE I NEED HELP
Use operations of decimal, fraction, and percent numbers to model the following scenarios. In your final answer, include only an equation or proportion modeling the scenario. Do not solve the problems.


A family dines in a popular franchise restaurant. At the end of the meal, they decide to leave their server a monetary tip that is equal to 20% of the total bill amount, $60.50. How much will the family leave their server as a tip?
A family dines in a popular franchise restaurant. They plan to use a coupon that will give them a discount of 15% off of their total dinner bill, not including applicable sales tax or their server’s tip. If the family’s dinner bill totaled $34.00 before tax and tip, how much money will they save by using the coupon?
A family dines in a popular franchise restaurant. They plan to use a coupon that will give them a discount of 10% off of their total dinner bill, not including applicable sales tax or their server’s tip. The bill totals $157.30 before tax and tip. What is the new total after the server applies the 10% off coupon?
A family of eight dines in a popular franchise restaurant. The restaurant has a policy of automatically including a standard tip to the final bill for parties larger than six people. The bill for the meal included a total of $58.25 in food and beverage sales, plus a standard tip of $10.49. What percent of the food and beverage sales does the restaurant consider to be a standard tip for parties larger than six?
A family dines in a popular franchise restaurant that has a policy of automatically including a 20% tip on all food and beverage sales before coupon discounts are applied. What is the family’s total bill amount if their food and beverages totaled $94.20 and they used a 15% off coupon? (HINT: Create more than one model.)

Answers

Answer:

After the 10% coupon is applied, the bill is $141.57.

The resturaunt considers about $5.55 as a standard tip for a party of 6+.

With a 20% tip and a 15% off coupon, the final total would come out as $96.084

I need help images below

Answers

Answer:

25.48 and 289.38

Step-by-step explanation:

if circumference=pi*diameter we can rearrange it with algebra from c=pi*d to say d=c/pi and plug in the values and get the answer. the second one we say since area=pi*r^2 and were given r we plug in the values to find the answer.

The person above me is correct

if -8x + 8 = 51, what does x equal?

Answers

Step-by-step explanation:

Given

- 8x + 8 = 51

- 8x = 51 - 8

- 8x = 43

x = - 43 / 8

Hope it will help :)❤

X= -43 / 8 Hope this helps!!!

please help I'll give brainiest if It's right

Answers

Answer:

Sample of the park. It is not all the people, just a few as a sample for their survey or project.

The question is below and is has to be one of the answer choices

Answers

The answer is a. Hope it helps

Answer:

A) 22.50x + 95 < 240

(i dont know how to do the  line under the greater sign or the less sign)

Step-by-step explanation:

Jennifer's group was trying to build the tallest straw tower in the classroom. Each person in her group connected various lengths:

Jennifer: 16 cm, Harry: 20 cm, Brendan: 5 cm and Taylor: 52 cm.

Sort the number sentences that will tell you how tall their tower was.

Answers

93cm. I could be wrong tho. Hope this helps
93m I could be wrong too

Absolute value is the ---- from zero on the number line.

Answers

Absolute value- the distance from zero

Absolute value is the distance from zero on the number line.

What is number line?

It is the representation of numbers in real order.

The difference between the consecutive numbers in a number line is always positive.

We have,

An absolute value of x is given by |x|.

The absolute value of any number is always positive.

|-x| = x

Thus,

Absolute value is the distance from zero on the number line.

Learn more about number line here:

https://brainly.com/question/13425491

#SPJ2

I NEED HELP ASAP T^T


Multiply each side of the statement by (-3) < 4 by (-1). Is the inequality symbol preserved or reversed?

Answers

Answer:

Reversed

Step-by-step explanation:

If you multiply each side by -1, then the equation becomes;

3 < (-4)

which is incorrect. The symbol would have to be the other way which means that the inequality symbol is going to be reversed.

Answer:

Reversed

Step-by-step explanation:

HELP!!!!!!!!!!! I have 2 more questions to ask

Answers

Answer:

Sorry the screenshot is black but i would like to help if you can repost it?

Step-by-step explanation:

the answer is d or the last one

What is the area of this trapezoid?


A. [tex]12\frac{1}{4}[/tex]²
B. [tex]24\frac{1}{4}[/tex]²
C. [tex]73\frac{1}{2}[/tex]²
D. [tex]143\frac{1}{2}[/tex]²

Answers

Answer:

A. [tex] 12 \frac{1}{4} \: {cm}^{2} [/tex]

Step-by-step explanation:

Area Of of the trapezoid

[tex] = \frac{1}{2} (7 + 5 \frac{1}{4} )2 \\ \\ = 7 + \frac{21}{4} \\ \\ = \frac{28 + 21}{4} \\ \\ = \frac{49}{4} \\ \\ = 12 \frac{1}{4} \: {cm}^{2} [/tex]

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