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schepotkina [342]
3 years ago
7

Can someone please help me??? -5x+y=35 3x+2y=-21 (Use substitution method)

Mathematics
2 answers:
Molodets [167]3 years ago
7 0
I need points really bad man
Elodia [21]3 years ago
5 0
Answer: x= -7, y= 0
Hope this helped , if it did mark me brainliest pls!
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Evaluate the expression.<br> 7.4+6 - 12:4<br><br><br> Plz help me
juin [17]

Answer:

7 . 4 + 6 - 12 : 4 = 31

Step-by-step explanation:

* To solve this problem lets revise the order of operations in

  mathematics

- The operations are:

# Addition

# Subtraction

# Multiplication

# Division

# Exponentiation

# Grouping ⇒ Parenthesis or brackets

- The order of these operations is:

# Parenthesis

# Exponents

# Multiplication and Division which comes first from left to right

# Addition and Subtraction which comes first from left to right

- There is a word made from the first letter of each operation

  PEMDAS to remember the order of operations

* Lets solve the problem

∵ 7 . 4 + 6 - 12 : 4

∵ The (.) means multiply the numbers

∵ The symbol (:) means divided the numbers

∴ At first multiply 7 by 4 and divide 12 by 4

∴ (7 × 4) + 6 - (12 ÷ 4)

∴ 28 + 6 - 3

∵ Addition comes before subtraction from the left

∴ (28 + 6) - 3

∴ 34 - 3 = 31

∴ 7 . 4 + 6 - 12 : 4 = 31

4 0
3 years ago
⁠ <br> 23<br> 56<br> − ⁠ <br> 1<br> 8<br><br><br> Write the answer in simplest form.
lidiya [134]

Answer:

Convert to a simplified fraction.

1/169

Step-by-step explanation:

i think this is right im not sure <em>IM SO SORRY IF THIS IS THE WRONG ANSWER</em>

4 0
3 years ago
In the summer of 2014, the average listing price for homes for sale in the Hollywood Hills was $2,663,995.
Wewaii [24]

Answer:

  • monthly payment: $15,903.61
  • interest: $2,368,664.10

Step-by-step explanation:

a) The loan amount is 90% of the price shown, so is ...

  0.90 × $2,663,995 = $2,397,595.50

The monthly loan payment is given by the amortization formula:

  A = P(r/12)/(1 -(1 +r/12)^(-12t))

  A = $2,397,595.50(0.0525/12)/(1 -(1 +0.0525/12)^(-12·30))

  A = $13,239.61

The monthly escrow payment will be 1/12 of the annual amount:

  0.012 × $2,663,995 / 12 = $2664.00

So, the total monthly payment on the house will be ...

  $13,239.61 +2664.00 = $15,903.61

__

b) The sum of monthly loan payments is ...

  $13,239.61 × 360 = $4,766,259.60

so the interest on the $2,397,595.50 loan is ...

  $4,766,259.60 -2,397,595.50 = $2,368,664.10

7 0
3 years ago
A __ is drawn on a triangle to indicate right triangle?
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A box or square is drawn on the right angle triangle to show that it is a right triangle
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3 years ago
HELP its a story of blackout
Flauer [41]

Answer:

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3 years ago
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