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OverLord2011 [107]
2 years ago
5

Khairi has only 20¢ and 50¢ coins in his coin bank. There are twice as

Mathematics
1 answer:
lara31 [8.8K]2 years ago
3 0

Answer:

There is 43 20¢ in the coin bank.

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Find the missing value of the direct variation (2,5) (5,y)
Karolina [17]

Answer:

The missing value y=12.5 and we have (5,12.5)

Step-by-step explanation:

The formula used for direct variation is:

y\: \alpha \:x\\y=kx

We need to find missing value (2,5)(5,y)

First we will find k, and then y

We have x=2, y=5

Find k:

y=kx\\5=k(2)\\k=\frac{5}{2}\\k=2.5

Now, we cam find missing value in (5,y)

We have x=5, k=2.5 and y=?

y=kx\\y=2.5(5)\\y=12.5

So, the missing value y=12.5 and we have (5,12.5)

7 0
3 years ago
Write the point-slope form of the equation for a line that passes through (6, -1) with a slope of 2.
Naddika [18.5K]

Answer:

2x-y-13=0

Step-by-step explanation:

6 0
3 years ago
An electronics store reduced the price of a TV from $1200 to $1068. What was the percent of decrease? (please explain the formul
elena-s [515]
You take the difference so 1200-1068=132 and then you take the original divided by the difference so 1200/132 so it would be 9.09%
6 0
3 years ago
Urgent!!!!!In a class of students, the following data table summarizes the gender of the students
Setler79 [48]

Answer:

.85%

Step-by-step explanation:

You add up all the students who have an A whether they are male or female. 3 + 17 = 20. You have 17 males right? Divide 17 by 20 to get .85

7 0
3 years ago
If the straight line passing through A(-7, -5) and B(-3, x) is parallel to another straight line of slope 2, find the value of x
Ostrovityanka [42]
X=3; you can set up a proportion using the slope equation. So (y[sub2]-y[sub1])/(x[sub2]-x[sub1])=2/1 then plug in the values and simplify. Then cross multiply and solve for x. Rest of work shown in the picture
8 0
3 years ago
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