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kolezko [41]
3 years ago
11

PLEASE ANSWER THIS ASAP

Mathematics
2 answers:
Ksju [112]3 years ago
6 0

Answer:

8,5

Step-by-step explanation:

5*8-2y=30

40-30=2y

10=2y

y=10/2

y=5

jek_recluse [69]3 years ago
4 0

Answer: The answer is 5!

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15 points because I need it quickly!! I will give brainliest to first answer
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Answer:

12.60

Step-by-step explanation:

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2 years ago
You have 8 times as many dimes as nickels. You have 18 dimes
fenix001 [56]

Answer:

$1.70

Step-by-step explanation:

Let the number of nickels be  x.

Thus, by the problem statement, the number of dimes is  [/tex] 8 \cdot x = 8x. [/tex]

Therefore, there are 8x + x = 9 coins in total. To find what x is, we need to solve the equation 9x = 18. This can be done by dividing both sides by 9 which gives x=2. Plugging these values in tells us that there are 2  nickels and 16 dimes. (Test it out!) Thus, the nickels are worth 2 \cdot 5 = 10 cents and the dimes are worth 16 \cdot 10 = 160 cents, so in all, you have 10 + 160 = 170 cents which is $1.70.

Hope this helps :)

7 0
1 year ago
Which of the following are​ true? If​ false, explain briefly.​a) A​ P-value of 0.01 means that the null hypothesis is false.​b)
choli [55]

Answer:

a) false

b) true

c) false

d) false

Step-by-step explanation:

a) p-value is compared with test statistic to either accept or ereject the null hypothesis. There is no fixed p-value to reject the null hypothesis

b) p-value tells us the probabiltiy of finding null hypothesis to be true

c) There is no fixed p-value for nullyfying the the null hypothesis

d) There is no fixed p-value to reject the null hypothesis

6 0
3 years ago
Graph a line that contains the point (-5, -6) and has a slope of 2/3.
OlgaM077 [116]

Answer:

I think this will help

Step-by-step explanation:

Make a point at(-5,-6) then go up two boxes and right three boxes.

4 0
3 years ago
Read 2 more answers
Solve the system of equations.<br> – 5x + 2y = 9<br> y = 7x<br><br> X =<br> Y =
Sphinxa [80]

Answer:

<em> x−y = 9 , x + y = 6</em>

<em>x + y = 4  ,  x − y = 2</em>

<em>x + 2 y = 4  ,  x − y = − 3 </em>

<em>try out these examples?</em>

<em />

<em />

5 0
3 years ago
Read 2 more answers
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