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larisa [96]
3 years ago
5

Use the scale below to complete the sentence.

Mathematics
1 answer:
goblinko [34]3 years ago
5 0
21ft in yards equals 7 yards I hoped this helped!
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Three times a number minus another number is -3. The sum of the numbers is 11. Find the numbers
MatroZZZ [7]

The first equation is

3x-y=-3

The second equation is

x+y=11

If you sum the two equations you'll cancel y:

4x=8 \iff x=2

And since the sum must be 11, we have y=9.

8 0
3 years ago
Whats the y-intercept
svet-max [94.6K]

Answer:

2

Step-by-step explanation:

the y-intercept is where the line meets the y-axis

7 0
3 years ago
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Susan is writing a linear equation for the cost of her cell phone plan. In the first month, she talks for 52 minutes and is char
Alex787 [66]
Assuming that the cost per minute is the same for both months and the plan fee is the same, you can use y=mx+b for this

y is the cost of the phone plan, x is the cost per minute and b is the start cost.

so    19.41=25x+b for the first month
and  45.65=380x+b for the second month

solve both for b you get:
19.41-25x=b and 45.65-380x=b.  from this we get
19.41-25x=45.65-380x

solve for x

328x=26.24 and x=0.08

this means the cost per minute is 0.08c/min (answer A)

rewrite the equation to calculate b, and where this time, the x is the number of minutes talked.

y=0.08x+b and plug in one of the two months

45.65=0.08 * 380 + b

Solve for b and b is 15.25

so the final equation is

y=0.08x+15.25  (answer B)
5 0
3 years ago
What is 4725 devided by 30
lana [24]
4725 devided by 30 is 4725 / 30 = 157.5 ;

6 0
3 years ago
When you bundle ten tens together they make 100, or a hundred
Ket [755]
100 is your answer!!!!!!
8 0
3 years ago
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