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Sindrei [870]
3 years ago
12

Evaluate the equation when x = 2, y = -1, and z =3 y/z+3y

Mathematics
1 answer:
ZanzabumX [31]3 years ago
4 0
-1/3+6
17/3

(Mark me the brainliest if this was helpful)
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Caroline is saving up to buy a new video game .she already has $45 and can save an additional $9 per week using money from her a
notka56 [123]
9w+45= amount of money she’ll have after any amount of weeks.

So, since W is weeks... and you have 9 weeks, you do (9x9)+45.

Then you get 81+45, which is 126. She will have $126 after 9 weeks
5 0
3 years ago
There are six children in a family. Five of them are respectively 2, 6, 8, 12 and 14 years older than the youngest, and the age
german

The youngest is 5 years old

Step-by-step explanation:

The prime numbers are the numbers that have only two factors

1 and itself

Example: 2, 3, 5, 7, 11, 13, 17, 19, 23, .......

There are six children in a family

  • Five of them are respectively 2, 6, 8, 12 and 14 years older than the youngest
  • The age of each child is a prime number

We need to find the age of the youngest

Assume that the age of the youngest is x years old

∵ The age of the youngest is x years old

∵ The ages of other children are respectively 2, 6, 8, 12 and 14 years

   older than the youngest

∴ The ages of other children are respectively

→ x + 2

→ x + 6

→ x + 8

→ x + 12

→ x + 14

∵ The age of each child is a prime number

- Let us chose x from the list of the prime number above to find the

  correct x which makes all the ages are prime

If x = 2

∵ x + 2 = 2 + 2 = 4 ⇒ not prime

∴ x can not be 2

If x = 3

∵ x + 2 = 3 + 2 = 5 ⇒ prime

∵ x + 6 = 3+ 6 = 9 ⇒ not prime

∴ x can not be 3

If x = 5

∵ x + 2 = 5 + 2 = 7 ⇒ prime

∵ x + 6 = 5 + 6 = 11 ⇒ prime

∵ x + 8 = 5 + 8 = 13 ⇒ prime

∵ x + 12 = 5 + 12 = 17 ⇒ prime

∵ x + 14 = 5 + 14 = 19 ⇒ prime

∴ x can be 5

∵ The ages of the children are 5 , 7 , 11 , 13 , 17 , 19

∵ All the ages are prime numbers

∴ The age of the youngest is 5 years

The youngest is 5 years old

Learn more:

You can learn more about prime numbers in brainly.com/question/4550858

#LearnwithBrainly

4 0
3 years ago
Read 2 more answers
Find m<1. Please help quick!
GenaCL600 [577]

Answer:

17°

Step-by-step explanation:

Look everything you have above the horizontal line.

It's a 73° angle, plus the one you need, plus 90°. They add up to 180.

m+73+90=180, or m=17.

6 0
2 years ago
Please help, i would really appreciate your help
otez555 [7]

Answer:

x = 7

Step-by-step explanation:

Since the lines are parallel, we know that the two angles are equal. So you can write (7x - 4) = (5x + 10). Then you just solve for x.

7x - 4 = 5x + 10

add 4 from both sides to get

7x = 5x + 14

subtract 5x from both sides to get

2x = 14

divide both sides by 2 to get

x = 7

6 0
2 years ago
Marty made a $220 bank deposit using $10 bills and $5 bills. She gave the teller a total of 38 bills, how many $5 bills were in
Sergeeva-Olga [200]

Answer:

Step-by-step explanation: Let x = number of $5 bills

Let y = number of $10 bills

Use these variables to set up equations to represent total deposit and number of bills.

x + y = 38 eq1 ----> total number of bills

5x + 10y = 220 eq2 -----> total deposit

3 0
3 years ago
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