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notsponge [240]
3 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]3 years ago
7 0

27 dimes for my answer

hope it works

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Can anyone please help with these 2 questions. If you can, please show step-by-step.
valentinak56 [21]

Answer:

1. x = 21

2. m∡ABC =  51°

Step-by-step explanation:

First problem, solve for x

the sum of inside angles of a triangle is 180

also the supplementary angle for L = 180 - 100 is 80°

now you can add all angles

80 + 2x - 11 + 2x + 27 = 180

4x + 96 = 180

4x = 84

x = 21

Second problem, solve for m∡ABC

the sum of inside angles of a triangle is 180

also the supplementary angle for C = 180 - 148 is 32°

now you can add all angles

31 + 2x - 15 + x - 5 = 180

3x + 12 = 180

3x = 168

x= 56,

now solve for  m∡ABC = (x - 5)° = (56 - 5)° = 51°

8 0
3 years ago
Read 2 more answers
What is another number of pennies and total mass of pennies in grams if my number of pennies is 10 and the mass in grams is 25
Angelina_Jolie [31]

Answer:

1 penny is equal to 2.5 grams

Step-by-step explanation:

1 penny = 2.5 grams

2 pennies = 5.0 grams

3 pennies = 7.5 grams

Just add 2.5 grams every penny.

Pick any number of pennies and multiply it by 2.5 (Don't forget to add grams ( g ) at the end.

7 0
3 years ago
Write out the sample space for the given experiment. Use the letter R to indicate red, G to indicate green, and B to indicate bl
Vilka [71]

Answer:

Answer for the question:

Write out the sample space for the given experiment. Use the letter R to indicate red, G to indicate green, and B to indicate blue. A die shows 33 different colors on it. Give the sample space for the next 22 rolls.

is given in the attachment.

Step-by-step explanation:

Download pdf
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Can someone help me?
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Answer:

Area (A) = ½ (b × h) square units

Step-by-step explanation:

The general formula for calculating the area of a triangle is; Area (A) = ½ (b × h) square units, where; A is the area, b is the base, and h is the triangle's height. The triangles might be different in nature, but it important to note that this formula applies to all the triangles.

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2 years ago
Miguel plans to paint a wood deck. He needs to buy the correct amount of paint. What is the area of the deck? If one can of pain
natali 33 [55]
Well, Miguel can paint infinite square feet if you do not give us the correct amounts. This is because we can assume that there are many buckets of paint.
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3 years ago
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