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nexus9112 [7]
3 years ago
12

2-1= plz help me i need help

Mathematics
2 answers:
Alinara [238K]3 years ago
5 0

Answer:

1 :)

Step-by-step explanation:

Harman [31]3 years ago
4 0

Answer:

1

Step-by-step explanation:

2-1=1

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Michelle is 7 years older than her sister Joan, and Joan is 3 years younger than their brother Ryan. If the sum of their ages is
Zielflug [23.3K]

Answer:

(C) 18

Step-by-step explanation:

We can create a systems of equations. Assuming m is Michelle's age, j is Joan's age, and r is Ryan's age, the equations are:

m = j + 7

j = r-3

m+j+r = 64

We can use substitution, since we know the "values" of m and j.

(j+7)+(r-3)+r = 64\\(j+7)+(2r-3)=64\\2r + j + 4 = 64\\2r + j = 60\\\\

r = 21, j = 18

So we know that Joan is 18 years old.

Hope this helped!

8 0
3 years ago
HELP FAST DUE IN TEN MINUTES!!
goldenfox [79]

Answer:

Someone is spending 80 cents daily from their bank account, starting out with $5.6

5 0
2 years ago
Sven got money for his birthday. He spent $12 of the money and now has $28 left. Write and solve an equation to find out how muc
Dennis_Churaev [7]

Answer:

Equation

28  =  X - 12

Solve for X

Isolate the X

28+12 = X

40 = X

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
helene was paid a total of $33.00 for the 6 hours she worked. she continues to be paid at the same rate. how long would it take
natita [175]

The number of hours that helena need to work to generate 165 dollars is

33 hours.

Helena has to work hours to earn $165. 33

Algebraic equations are equations with

unknown variables. The alphabet letters are used to represent algebraic equations.

Total $33.00 in her 6 hours she worked.

This question should find out how long it takes her to earn her $165.00 in that job.

let x hours be required work hours to earn $165.00 ..

This can be expressed in algebraic equations as:

x= 6× 165/33

x= 990/33

x= 30

Hence, helna have to work thirty hours to earn $165.00 ..

To learn more about Work time problem solving, refer:

brainly.com/question/15447610

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7 0
1 year ago
Which statement proves that parallelogram KLMN is a rhombus?
IrinaVladis [17]

Answer:

It is the last option.

Step-by-step explanation:

The diagonals of a rhombus (KM and NL ) are perpendicular. That is shown by the diagonals having slopes of 1 and -1.

Recall that when  2 lines are perpendicular then m1 * m2 = -1 , where m1 and m2 are the slopes of the lines.

5 0
3 years ago
Read 2 more answers
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