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pochemuha
3 years ago
6

22. Four years ago, Samantha was three times as old as Danny. Four years fromnow, Samantha will be only twice as old as Danny. H

ow old are they now?
Mathematics
1 answer:
Mama L [17]3 years ago
8 0
Danny is 12 and Samantha is 28
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Identify the mapping diagram that represents the relation and determine whether the relation is a function. {(–8, –6), (–5, 2),
SashulF [63]
Do you have the answer options? Sorry, can't answer without them ):
8 0
3 years ago
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If x ≠ 0 then what is x^0?
grigory [225]

Answer:

1

Step-by-step explanation:

Remember that anything to the 0th power is going to be 1 in terms of exponent rules!

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Carter has 37 coins, all nickels and dimes in his piggy bank. The value of the coins is $3.10. How many dimes does Carter have?
Arisa [49]
The answer is 
n = 37 - d
0.05n + 0.10d = 3.10
He has 25 dimes.

n - the number of nickles
d - the number of dimes

n = $0.05
d = $0.10

<span>Carter has 37 coins: n + d = 37
</span><span>The value of the coins is $3.10: 0.05n + 0.10d = 3.10


</span>n + d = 37
0.05n + 0.10d = 3.10
_____
n = 37 - d
0.05n + 0.10d = 3.10
_____
0.05(37 - d) + 0.10d = 3.10
1.85 - 0.05d + 0.10d = 3.10
1.85 + 0.05d = 3.10
0.05d = 3.10 - 1.85
0.05d = 1.25
d = 1.25 : 0.05
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3 0
3 years ago
A triangle has vertices at f (-7,3),g(2,6) and h(3,5)
Allisa [31]

Answer:

F(-7,3)  -> F'(-7,-3)

G(2,6) -> G'(2,-6)

H(3,5) ->H'(3,-5)

Step-by-step explanation:

If you are taking point (a,b) and reflecting it across the x-axis (the horizontal axis), your x value is going to stay the same because you want the point on the same vertical line as (a,b).  The y-coordinate is going to be opposite because you want a reflection and the opposite of b will this give you the same distance from the x-axis as b.

So the transformation is this: (a,b)  -> (a,-b).

All this means is leave x the same and take the opposite of y.

F(-7,3)  -> F'(-7,-3)

G(2,6) -> G'(2,-6)

H(3,5) ->H'(3,-5)

4 0
3 years ago
The ratio of the corresponding side lengths is 10:710:7. What is the ratio of the areas?
Anvisha [2.4K]
10 * 10= 100
7*7=49
the ratio is 100:49

remember to mark me brainliest

8 0
3 years ago
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