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mel-nik [20]
3 years ago
7

A bag contains purple marbles and white marbles, 104 in total. The number of purple marbles is 2 more than 5 times the number of

white marbles. How many purple marbles are there?
Mathematics
1 answer:
Helen [10]3 years ago
4 0

Let white marbles = x

Purple marbles = 5x + 2

Given:

x + 5x + 2 = 104

6x = 102

x = 17

Purple marbles = 5(17) + 2 = 85 + 2 = 87

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Hunter-Best [27]

Answer

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Step-by-step explanation:

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Mario and Luigi have friends. They want to purchase some extra controllers. Each controller costs $29.99.
jonny [76]
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Let x = number of consoles to be bought
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4 0
3 years ago
A wire that is 0.20 meters long is moved perpendicularly through a magnetic field of strength 0.45 newtons/amperes meter at a sp
Natali [406]

Answer:

Given:

length of the wire = 0.20 meters

magnetic field strength = 0.45 newtons/amperes meter

speed = 10.0 meters per second

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Step-by-step explanation:

6 0
3 years ago
Three red rods are 2cm longer than two blue rods. Three blue rods are 2cm longer than four red rods. How long is each rod?
nydimaria [60]

Answer:

The length of each red rod is 10 cm and the length of each blue rod is 14 cm

Step-by-step explanation:

Let

x ----> the length of each red rod in centimeters

y ----> the length of each blue rod in centimeters

we know that

3x=2y+2 ----> equation A

3y=4x+2 ----> equation B

Solve the system by graphing

Remember that the solution of the system of equations is the intersection point both graphs

using a graphing tool

The solution is the point (10,14)

see the attached figure

therefore

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4 0
3 years ago
What is R+G=20<br> 7R+3G=9
Troyanec [42]

Step-by-step explanation:

hope I understand your qyestion

Equation 1 : R+G=20

Equation 2 : 7R+3G=9

Multiply Equation by 3, it becomes

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Now Equation 3 minus Equation 2

-4R = 51

R = - 51/4

Sub R into Equation 1, you can find G

4 0
3 years ago
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