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Ymorist [56]
3 years ago
14

The sum of two numbers is 180. one number is 5 times the other

Mathematics
2 answers:
stepan [7]3 years ago
8 0
30 & 150. 150 is five times 30, and 150+30=180
Vlada [557]3 years ago
7 0
Let 2 numbers be x and y  then

x + y = 180   and
y = 5x

plug y = 5x into the first equation:-

x + 5x = 180

x = 30

y = 180-30 = 150

The 2 numbers are 30 and 150
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Which is the correct algebraic expression after combining like terms?
Free_Kalibri [48]

Answer:

  b)  3cd+3 1/3c-3d

Step-by-step explanation:

It can work well to factor the variables out so you can see the coefficients more easily:

  6cd+3c-7d-3cd+4d+1/3c

  = (6 -3)cd +(3 +1/3)c +(-7 +4)d

  = 3cd +(3 1/3)c -3d

7 0
3 years ago
Read 2 more answers
Simplify. please7−5x−(3+5x) 4 + 10x44−10x10 + 10x
Alenkasestr [34]

Simplify the expression:

7 - 5x - (3 + 5x)

Operate the parentheses. Each term changes its signs because the minus sign represents a -1:

7 - 5x - (3 + 5x) = 7 - 5x - 3 - 5x

Collect like terms:

7 - 5x - (3 + 5x) = 7 - 3 -5x - 5x

Simplify:

7 - 5x - (3 + 5x) = 4 - 10x

Answer: 4 - 10x

8 0
1 year ago
Name the marked angle in 2 different ways.<br> Q<br> P<br> O<br> N
Alexxandr [17]

Answer:

PQO and OQP

Step-by-step explanation:

PQO: lines OQ and PQ make the angle.

OQP: Not really sure why it asks for two names. You can probably just flip PQO to OQP and that might work. N is not part of the angle so you can't have an answer with that letter.

4 0
2 years ago
If three times a number added to 8 is divided by the number plus 7, the result is four thirds. Find the number.​
Marina86 [1]

9514 1404 393

Answer:

  4/5

Step-by-step explanation:

The wording is ambiguous, as it often is when math expressions are described in English. We assume you intend ...

  \dfrac{3n+8}{n+7}=\dfrac{4}{3}\\\\3(3n+8)=4(n+7)\qquad\text{multiply by $3(n+7)$}\\\\9n+24=4n+28\qquad\text{eliminate parentheses}\\\\5n=4\qquad\text{subtract $4n+24$}\\\\\boxed{n=\dfrac{4}{5}}\qquad\text{divide by 5}

The number is 4/5.

5 0
3 years ago
Sofia has 25 coins in nickels and dimes in her pocket for a total of $1.65 how many of each type of coin does she have?​
Simora [160]

Answer:

She has 23 nickels and 5 dimes.

Step-by-step explanation:

Let n = the number of nickles and d = the number of dimes.

The number of each = 28. Set up the equation:

n + d = 28

Solve for n:

n = 28 - d

The total amount is $1.65 or 165 cents:

5n + 10d = 165

Substitute:

5(28 - d) + 10d = 165

140 - 5d + 10d = 165

140 + 5d = 165

5d = 165 - 140

5d = 25

d = 5, the number of dimes.

Solve for n:

n = 28 - d

n = 28 - 5 = 23, the number of nickles.

Proof:

5n + 10d = 165

5(23) + 10(5) = 165

115 + 50 = 165

165 = 165

Hope this Helps! Have an Awesome Day!!! <3

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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