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GrogVix [38]
3 years ago
7

PLZ do all of it plz i will give brainlest and thanks to best answer

Mathematics
1 answer:
Vlada [557]3 years ago
6 0

Answer:

1. -4

2. 10

3. -19

4. 5

Step-by-step explanation:

1. 5 + -9= -4

2. -3 + 13 = 10

3. -8 + 11 = -19

4. 6 + -1 = 5

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Find the length of a photograph whose width is 10 inches and whole proportions are the same as a 5-inch by 8-inch photograph.
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5 inch is the width, 8 inch is the length.

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10 /5 = 2 the larger photo is 2 times larger,

Multiply the known length by 2:

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4 0
3 years ago
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Please solve with explanation (high points)
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So, we know that:

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We also know that (a+b)^2=a^2+2ab+b^2. We will use that fact to find c in terms of A and P.

A=\dfrac{1}{2}ab\Rightarrow 2ab=4A\\P=a+b+c\Rightarrow a+b=P-c

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2 years ago
15 less than quadruple a number w​
vichka [17]

Answer:

4w-15

Step-by-step explanation:

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Two brothers, Gethin and David, share a sum of money in the ratio 2:7.
Vitek1552 [10]

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Step-by-step explanation:

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Step-by-step explanation:

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