1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
icang [17]
3 years ago
14

Add the equations 2x-3y=-1 + 3x+3y=26 A. 5x-6y=-27 B. 5x=27 C. 6y=25 D. 5x=25​

Mathematics
2 answers:
jenyasd209 [6]3 years ago
6 0

Answer:

D) 5x = 25

Step-by-step explanation:

-1+26 = 25

2x + 3x = 5x

-3y + 3y = 0

viktelen [127]3 years ago
3 0

Answer:

pretty sure it is b

Step-by-step explanation:

You might be interested in
Damon makes 20 cups of lemonade by mixing lemon juice and water. The ratio of lemon juice to water is shown in the tape diagram.
Effectus [21]

Answer:  4 cup

Step-by-step explanation:

Here, the total number of cups in lemonade = 20 cups

In which some are cup of lemon juice and some are cups of water.

And, the ratio of cups of lemon juice and water in one lemonade = 1 : 4

Let the cups of lemon juice in one lemonade = 1 x

And, The cups of water in one lemonade = 4 x

Where x is any number.

Thus, 1 x + 4 x = 20

⇒ 5 x = 20

⇒ x = 20/5 = 4

Thus, Damon uses 4 cup of lemon juice in one lemonade.

6 0
3 years ago
Read 2 more answers
Daniel is completing a home project. He needs 13 pieces of wood, each 112 feet long, to complete the project. How much wood does
snow_lady [41]

13 x 112 = 1456 ft

112 ft x 8 = 896

Only needs 8 pieces

4 0
3 years ago
Find sin(a+b) if tan(a)=7/24 where a is in the third quadrant
ludmilkaskok [199]
The complete question in the attached figure

we have that
tan a=7/24    a----> III quadrant
cos b=-12/13   b----> II quadrant
sin (a+b)=?

we know that
sin(a + b) = sin(a)cos(b) + cos(a)sin(b<span>)
</span>
step 1
find sin b
sin²b+cos²b=1------> sin²b=1-cos²b----> 1-(144/169)---> 25/169
sin b=5/13------> is positive because b belong to the II quadrant

step 2
Find sin a and cos a
tan a=7/24
tan a=sin a /cos a-------> sin a=tan a*cos a-----> sin a=(7/24)*cos a
sin a=(7/24)*cos a------> sin²a=(49/576)*cos²a-----> equation 1
sin²a=1-cos²a------> equation 2
equals 1 and 2
(49/576)*cos²a=1-cos²a---> cos²a*[1+(49/576)]=1----> cos²a*[625/576]=1
cos²a=576/625------> cos a=-24/25----> is negative because a belong to III quadrant
cos a=-24/25
sin²a=1-cos²a-----> 1-(576/625)----> sin²a=49/625
sin a=-7/25-----> is negative because a belong to III quadrant

step 3
find sin (a+b)
sin(a + b) = sin(a)cos(b) + cos(a)sin(b)
sin a=-7/25
cos a=-24/25
sin b=5/13
cos b=-12/13
so
sin (a+b)=[-7/25]*[-12/13]+[-24/25]*[5/13]----> [84/325]+[-120/325]
sin (a+b)=-36/325

the answer is
sin (a+b)=-36/325

8 0
3 years ago
Compare the decimals 14.40 and 14.04.
tatuchka [14]
C. 14.40 is greater than 14.04
8 0
3 years ago
Read 2 more answers
What is the solution to the equation?<br><br>√2x+10−6=2<br><br><br>*Picture of the Problem Below*
Klio2033 [76]

Answer:

x = 27

Step-by-step explanation:

Given

\sqrt{2x+10} - 6 = 2 ( add 6 to both sides )

\sqrt{2x+10} = 8 ( square both sides )

2x + 10 = 8² = 64 ( subtract 10 from both sides )

2x = 54 ( divide both sides by 2 )

x = 27

5 0
3 years ago
Other questions:
  • Suzy was adding numbers on a number line. She started at –2 and then she added –3. She wrote that her answer was +5.
    6·2 answers
  • Sidney flew in an airplane five times during her vacation.The flights averaged 2 hours 28 minutes long.The lengths of her first
    9·1 answer
  • PLZZZ I NEED THIS QUICK <br> What is [-4.6].
    7·1 answer
  • how do you find the scale factor dilated? ( not sure how to figure this out but if someone does help, it’d be appreciated! )
    5·1 answer
  • If 5 is 20% of N,then what does N equal
    11·2 answers
  • a population of rabbits triples every month. the population starts with two rabbits.how many rabbits are there after 3 months?
    14·2 answers
  • A shipping container will be used to transport several 100-kilogram crates across the country by rail. The greatest weight that
    15·1 answer
  • The function f(x) = -x^2 + 4x - 3 is graphed in the xy-coordinate plane as <br> shown
    8·1 answer
  • Can someone help me with this. Will Mark brainliest. Need answer and explanation/work. Thank you.
    15·1 answer
  • <img src="https://tex.z-dn.net/?f=HELP%20%5C%3A%20%20ME%20%5C%3A%20%20PLEASE%20" id="TexFormula1" title="HELP \: ME \: PLEASE
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!