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2 years ago

Solve the equation. -5r-1=7r+5

Mathematics

2 answers:

irga5000 [103]2 years ago

8 0

Answer:

r=-1/2

Step-by-step explanation:

(-5*-1/2=2.5)( 2.5-1=1.5) (7x -1/2= -3.5)-3.5+5 =1.5

Ksivusya [100]2 years ago

3 0

Answer:

-1/2

Step-by-step explanation:

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Step2247 [10]

The first and last one are true!

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2 years ago

If the circumference is 4.6pi what is the area

Keith_Richards [23]

Answer:

The area of a circle with a circumference of 4.6 is 1.684

Step-by-step explanation:

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6 0

2 years ago

Cost of 10 oranges is one dollar what is the cost of five

aleksley [76]

10 oranges = $1
5 oranges = $?

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3 years ago

Need help on writing a proof.

viva [34]

Answer: Congruent

Step-by-step explanation:

Line BC is reflexive to itself

AB is congruent to CD, and that's given

Line AC is congruent to BC, using these prior proofs

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5 0

2 years ago

Four couples at a dinner party play a board game after the meal. They decide to play as teams of two and to select the teams ran

Llana [10]

Answer:

0.29

Step-by-step explanation:

We are given that there are 4 couples i.e. 8 people

They decide to play as teams of two and to select the teams randomly

Now we are asked How likely is it that every person will be teamed with someone other than the person he or she came to the party with

For people 1 , there are 6 options for pairing Since he or she cannot pair with his /her own partner

So, Choices For people 1 will be 6 person

So, Probability that person 1 will be teamed with someone other than the person he or she came to the party with = $\frac{\text{No. of choices for Person 1}}{\text{Total no. of choices available}}=\frac{6}{7}$

So, Probability that every person (=8 person) will be teamed with someone other than the person he or she came to the party with = $(\frac{6}{7})^8=0.29$

Hence Probability that every person will be teamed with someone other than the person he or she came to the party with is 0.29

4 0

2 years ago