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V125BC [204]
3 years ago
10

What is 1 7/15 + 3/9

Mathematics
1 answer:
kolbaska11 [484]3 years ago
8 0

Answer:

1 and 36/45

Step-by-step explanation:

First, you have to make the denominators the same so that you can add them.

The smallest number that both 15 and 9 are factors of is 45.

Since you had to multiply 15 by 3 to get 45, you need to multiply 7 by 3 as well. this leaves with the fraction  1  21/45.

You multiplied 9 by 5 to get 45 so now you need to multiply 3 by 5 as well leaving you with the fraction 15/45.

Now all you have to do is add 1 21/45 + 15/45.

15 + 21 = 36 leaving you with your answer:

1 36/45

Hope this helps!

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1: Yes because it is in the form y=mx+b

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Step-by-step explanation:

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7 0
2 years ago
What are the factors of x2 – 4x – 5? Check all that apply.
harkovskaia [24]
When you factor (x^2-4x-5), you get (x+1)(x-5).
7 0
2 years ago
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Together two ferries can transport a day's cargo in 7 hours. The larger ferry can transport cargo three times faster than the sm
Ksju [112]

Answer:

9 hours, 20 minutes

Step-by-step explanation:

When two ferries work together, they transport a day's cargo in 7 hours

The speed proportion or ratio of larger ferry to smaller ferry is given as 3 : 1

The sum of the ratio = 4 (3 + 1)

This means that it will take the smaller ferry = 7 x 4 hours to work alone = 28 hours, since the larger ferry is faster by 3.

Therefore, when larger ferry works alone, it will take it (7 x 4)/3 = 9.33 hours.

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6 0
3 years ago
***I WILL GIVE BRAINIEST TO THE CORRECT ANSWER**
galben [10]

Answer:

2•15k

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Can someone help me please? Am I right or no?
Juliette [100K]
The figure consists of three objects, a rectangle, a trapezoid, a triangle

Find the area of the rectangle
The rectangle is 16 in long and 9 in wide
a₁ = l × w
a₁ = 16 × 9
a₁ = 144 in²

Find the area of the trapezoid
The base of trapezoid is 31 in and 16 in, and the height is 35 - 20 = 15 in.
a₂ = 1/2 × (a + b) × h
a₂ = 1/2 × (31 + 16) × 15
a₂ = 1/2 × 47 × 15
a₂ = 352.5 in²

Find the area of the triangle
The base of the triangle is 31 in, the height is 20 in
a₃ = 1/2 × b × h
a₃ = 1/2 × 31 × 20
a₃ = 310 in²

Add the area together
a = a₁ + a₂ + a₃
a = 144 + 352.5 + 310
a = 806.5

The answer is 806.5 in²
4 0
2 years ago
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