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Soloha48 [4]
3 years ago
8

A bag of marbles contains only purple and yellow marbles. The bag has 3 times as many yellow marbles as purple. The bag contains

164 total marbles. Write an equation or system of equations to find out how many of each color of marble is in the bag.
Mathematics
1 answer:
velikii [3]3 years ago
6 0
164÷4 = number of purple marbles.
(164÷4)×3= number of yellow marbles
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Wait so add 25.50 +25.50
Sever21 [200]
Answer:
25.50 +25.50= 51
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3 years ago
If Matrix A is 4 x 4, and Matrix B is 4 x 3, what is the size of matrix AB? If AB is undefined, please state so.
skad [1K]
I believe ab equals to 28!
8 0
3 years ago
I don't understand this one plz help before sunday.(Thank may God bless you and back the blue)
Makovka662 [10]

Answer:

2/3(3/4x-3/2) = 1/2x-1

(2x+1) - (x+3/2) = x - 1/2

Step-by-step explanation:

1) Distribute 2/3 to both 3/4x and -3/2

2/3(3/4x) = 6/12x which can be simplified as 1/2x

2/3(-3/2) = -6/6 which simplifies to -1

2/3(3/4x-3/2) = 1/2x-1

2) (2x+1) - (x+3/2) combine like terms

2x-x = x

1 - 3/2= 1- 1 1/2 ( change 3/2 into an improper fraction. 2 goes into 3 one time with one left over. Place the “leftover” back on top of the original denominator of 2)

1- 1 1/2 = -1/2, so

(2x+1) - (x+3/2) = x - 1/2

8 0
3 years ago
I just need to check if the answer I got is right cause I’m not sure. (7th grade)
zubka84 [21]

Answer:

48 ft.

Step-by-step explanation:

Since triangles ABC and DEC are similar (you can prove this quite easily), then we know the ratio of the sides are equal. This is a property of similar triangles. So we take the ratio of the sides CE and DE and the ratios of the sidesBC and AB.

We get:

\frac{x}{40} = \frac{60}{50} \Rightarrow x = \frac{6}{5}\times 40 = 48.

So x is 48 ft.

3 0
3 years ago
PLEASE HELP!!! Jeanie is 21 years old. She opens an account that pays 3.9% interest compounded monthly. She
Harlamova29_29 [7]

Answer:

$11,170

Step-by-step explanation:

First you convert the percentage to decimal form out of 100 (which you divide)

3.9%/100 =  0.039

A = P(1 + rt)

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I = $11,170 - 10,000 = $1,170

Which you should get $1,170.00 or $1,170 (which is pretty much the same thing)

Hope this helps!

6 0
3 years ago
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