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N76 [4]
3 years ago
14

The combined age of john and mary is 20 years. in 2 years, john will be five times as old as mary. how old is john at this time?

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
5 0

I don't know


I hate math

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Anika [276]
(x, y) = (-3, 4) hope this helps!
6 0
3 years ago
Someone please help!!
steposvetlana [31]

Answer:

y-6 = -7x + 21

Step-by-step explanation:

Find the slope

(-8 - 6)/(5-3)

-14/2 = -7

Now find the formula

y-6=-7(x - 3)

y-6 = -7x + 21

Another way to write it is

y= -7x + 27

6 0
3 years ago
If 140 people were surveyed, how many preferred crab?
Cloud [144]

If 140 people were surveyed, from the given table, the number of people that preferred crab is; 42

<h3>How to work with percentages?</h3>

We are given;

Total sample size; n = 140

Now, from the table we see the percentages that preffered each seafood.

Percentage that preferred Shrimp = 24%

Percentage that preferred Crab = 30%

Percentage that preferred Fish = 36%

Percentage that preferred Neither = 10%

Thus;

Number that preferred Crab = 30% * 140

Number that preferred Crab = 42 people

Read more about Percentages at; brainly.com/question/843074

5 0
2 years ago
Complete the table below to classify the triangles as scalene or isosceles.
BartSMP [9]

Answer:

1) Isosceles

2) Scalene

3) Scalene

Step-by-step explanation:

The 1st choice is isosceles because 2 side lengths are equal.

The 2nd and 3rd choice are scalene because none of the sides equal the other sides.

8 0
3 years ago
John purchased 1/4 lbs of hamburger for $0.75. How much did the hamburger cost per pound?
Neko [114]
A 1/4 lbs burger is 1 part of 4. It cost 0.75. Take 4 parts times .75 and the anwer is 3.00
5 0
4 years ago
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