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
Harlamova29_29 [7]
3 years ago
11

The sum of two numbers is 51.

Mathematics
1 answer:
Firdavs [7]3 years ago
4 0

Answer:

21 and 30

Step-by-step explanation:

x + y = 51

x - y = 9

add the two equations and y's will cancel out

2x = 42  divide by 2

x = 21   so put 21 in for x in the top equation and solve

21 + y = 51

y = 30

You might be interested in
Whoever gets the specific and correct answer will get Brainlist.<br> Goooood luckkk &lt;3
Elena-2011 [213]

Answer:

$6 per hour

Step-by-step explanation:

30 for 5 hours

$6 per hour

7 0
3 years ago
Write the expression in terms of cosine.please help.
Aleks04 [339]

Answer:

cos13°

Step-by-step explanation:

Using the cofunction identity

sinx° = cos(90 - x)°

sin77° = cos(90 - 77)° = cos13°

4 0
4 years ago
X+2=9 into a word problem
Stolb23 [73]
Robin has to go shopping for her brother's birthday.

She already bought "x" presents for him.

The next day, Robin bought "2" more presents for him just in time for his birthday.

When she got home and celebrated his birthday, her beother opened, in total, "9" presents.

--- What is the number of presents that Robin had originally purchased? ---
6 0
4 years ago
Hazel bought a bread toaster from an online company the original price of the Bread toaster Was $50 she received a 20% discount
alexgriva [62]
C. 20% minus 10% is 10%.
3 0
3 years ago
When Bunny and Walter came home from practice, there was a note from their mother sitting on top of a pizza box. “Had to run to
leva [86]

9514 1404 393

Answer:

  3/8 pizza

Step-by-step explanation:

If 1/4 of the 4/4 of the pizza was gone, 3/4 remained. When that is split in half, each half is (3/4)(1/2) = 3/8 of the pizza.

Each gets 3/8 of the pizza.

7 0
3 years ago
Other questions:
  • Write an equation of a line that passes through the point (2, 3) and is parallel to the line y = 3 over 2x + 5.
    7·1 answer
  • What is the slope for the equation y=7?<br> A. -7<br> B. 7<br> C. undefined <br> D. 0
    9·2 answers
  • Will give you 10 points, thank for the help!
    8·1 answer
  • Factorize: (2a+b)^3+(a+2b)^3​
    7·1 answer
  • Use the given triangles to answer the question. (Easy)
    11·1 answer
  • Help plssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
    5·1 answer
  • I WILL MARK BRAINIEST
    9·1 answer
  • Its the final brain cell.<br> (intense music)<br> help this is easy WiLL mArK bRaiNLieSt
    5·1 answer
  • GEOMETRY - triangle similarity
    10·2 answers
  • Please hurry
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!