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Alekssandra [29.7K]
2 years ago
14

Sally collected 32 coins. The ratio of Sally’s coins to Bill’s coins is 4 : 7. If Sally and Bill each double the number of coins

they have now, what is the ratio of Sally’s coins to Bill’s coins?
Mathematics
1 answer:
pshichka [43]2 years ago
4 0

Answer:

64 S

----

112 B

Step-by-step explanation:

Download docx
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Look at the picture and answer question <br> Quick and simple respond pls
gogolik [260]

Answer:

It is not a good model because neither point lies on the line.

Step-by-step explanation:

We can test each point on the equation of the line.

7x - 10y = 3

Point: (8, 5)

7(8) - 10(5) = 56 - 50 = 6

The left side equals 6, not 3, so point (8, 5) is not on that line.

Point: (-12, -9)

7(-12) - 10(-9) = -84 + 90 = 6

The left side equals 6 again, but the right side is 3, not 6.

Answer: It is not a good model because neither point lies on the line.

6 0
2 years ago
Pleasee help, thank you so much
dezoksy [38]

Answer:

-2

Step-by-step explanation:

Use the slope formula when given two points

Slope formula = \frac{y_2-y_1}{x_2-x_1}

( the x and y values are determined by the given points )

Given the points ( 0 , 5 ) and ( 1 , 3 )

Plug in the x and y values of the given points into the formula

( remember y values on top x values on bottom )

slope=\frac{5-3}{0-1} \\5-3=2\\0-1=-1\\slope=\frac{2}{-1} =-2

Hence, the answer is D

5 0
3 years ago
Harry has a small business cleaning kitchens and bathrooms. He usually cleans a bathroom in 1 hour and cleans a kitchen in 45 mi
Bumek [7]

Answer:

8 bathroom jobs and 9 kitchen jobs

Step-by-step explanation:

B=60

K=20

8*60=480

9*20=180

that would give harry 660 dollars in a week. HOWEVER- we have to make sure that its equal to or less than 15 hours of work.

8*1h= 8 hours in bathroom

9*45m=6.75hr in kitchen

8 hours+6.75 hours=14.75hr 14.75 hr<15hr so it works.

4 0
3 years ago
Now we are testing to see whether taking a vitamin supplement each day has significant health benefits. There are no (known) har
ZanzabumX [31]

Answer:

Concluding that people should take vitamin supplement each day when they don't help.            

Step-by-step explanation:

We are given the following in the question:

Hypothesis:

Taking a vitamin supplement each day has significant health benefits and does not have any harmful side effects.

Null hypothesis:

Taking a vitamin supplement each day does not have have significant health benefits.

Alternate hypothesis:

Taking a vitamin supplement each day have have significant health benefits.

Type I error:

  • It the error of rejecting the a true null hypothesis.

So error I for this situation would be concluding that people should take vitamin supplement each day when they don't help.

3 0
3 years ago
Twenty-four players divided into three teams?
avanturin [10]
24÷3=8

There will be eight players on each team.
8 0
3 years ago
Read 2 more answers
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