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tia_tia [17]
2 years ago
6

Nora is twice as old as Raj and half as old as Ethan. In 22 years' time. Ethan will be twice as old as Raj. Find Nora's current

age
Mathematics
1 answer:
Studentka2010 [4]2 years ago
5 0

Answer:

44 because 22 multiplied by 2 is 44

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Carl collects coins compulsively, but he only likes quarters ($0.25) and dimes ($0.10). Carl currently has 125 coins for a total
Bogdan [553]

Answer:

Carl has 35 dimes and 90 quarters

Step-by-step explanation:

Let the number of quarters be q and the number of dimes be d

Total number of coins is 125;

Hence;

q + d = 125 •••••••••(i)

The total value of quarters present = q * 0.25 = 0.25q

The total value of dimes present = d * 0.1 = 0.1d

Adding both gives the total

0.25q + 0.1d =26 ••••••••(ii)

So we need to solve both equations simultaneously;

From i,

q = 125 - d

Substitute this into ii

0.25(125-d) + 0.1d = 26

31.25 -0.25d + 0.1d = 26

31.25 -26 = 0.25d -0.1d

5.25 = 0.15d

d = 5.25/0.15

d = 35

Recall; q = 125 - d = 125 -35 = 90

7 0
3 years ago
Complete the equation of the line whose y-intercept is (0,5) and the slope is 9.
madreJ [45]

Answer:

9x+y−5=0 9 x + y − 5 = 0 .

Step-by-step explanation:

5 0
3 years ago
What is the slope of the line through (-1,4) and (1,-2)
yawa3891 [41]

Answer:

-3

Step-by-step explanation:

Slope = change of x over change of y

6 over 2

3

line goes down so slope is negative

-3

5 0
3 years ago
Read 2 more answers
True or False: A bisector of an angle divides the angle into right angles.
kenny6666 [7]
False. A bisector divides the angle evenly, not into right angles.
5 0
3 years ago
Which expressions are equivalent to -2.5(1-2n) - 1.5n
Keith_Richards [23]

Answer:

-5n - 4


Step-by-step explanation:

The goal is to simplify this expression.


1. Distribute

-2.5 * 1 = -2.5

-2.5 * 2n = -5n


Now, we have

-2.5 - 5n - 1.5


2. Combine like terms

-2.5 + (-1.5) = -4 (+ * - = -   The - cancels out the +)


3. Put it together

-5n - 4


I hope I helped!

Let me know if you need anything else!

~ Zoe



4 0
3 years ago
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