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notsponge [240]
4 years ago
12

A collection of coins consists of dimes and nickels .The number of dimes is two more than the twice the number of nickels.The va

lue of the collection is $2.70. How many dimes are in the collection ?
Mathematics
1 answer:
CaHeK987 [17]4 years ago
7 0

27 dimes for my answer

hope it works

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If the original quantity is 8 and the new quantity is 4, what is the percent decrease
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Answer: its a half a percent or 50%

Step-by-step explanation:

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3 years ago
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Someone help me on this one
juin [17]

It's an isosceles triangle, so the angles at the base are congruent:


m\anlge WXY=m\angle WZY


The triangle XYW is a rectangular triangle.


We know that the sum of the measures of angles in a triangle is 180°.


Therefore we have the equation:


m\angle YWZ+90^o+17^o=180^o\\\\m\angle YWZ+107^o=180^o\ \ \ |-107^o\\\\m\angle YWZ=73^o



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6 0
4 years ago
PLZ HELP ASAP RIGHT TRIANGLES
ivann1987 [24]
Answer:
x = √40 = 2√10

Explanation:
The given triangle is an isosceles triangle. This means that the angle bisector is perpendicular to the base and bisects it, which means that we now have two identical right-angled triangles.

Let's consider the triangle on the right:
We have one of its sides = 6 units, the other one = 4/2 = 2 units and the hypotenuse = x units

We will use the Pythagorean theorem to get the length of the hypotenuse as follows:
(Hypotenuse)² = (side1)² + (side2)²
x² = (6)² + (2)²
x² = 36 + 4
x² = 40
either x = -√40 = -2√10 ........> rejected as length cannot be negative
or x = +√40 = 2√10 .........> accepted value

Based on the above:
x = 2√10 units

Hope this helps :)
3 0
4 years ago
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Jobisdone [24]

Answer:

y = 2|x+3| -2

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3 years ago
What is the answer to ( √2 - √3 )² =
a_sh-v [17]
The answer would be 5 -  the square root of 24
8 0
3 years ago
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