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irina1246 [14]
3 years ago
7

One number is 8 times another number. The numbers are both positive and have a difference of 70. Find the numbers, which of the

following equations could be used to solve the problem
Mathematics
2 answers:
Veronika [31]3 years ago
8 0
X=8y,  8y-x=70

Those two equations would be used to solve the problem.
matrenka [14]3 years ago
7 0
8x-x=70 wouuld be the answer 
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Alenkinab [10]

Answer:

i think it is 8

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3 years ago
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Find the area of the right triangle △DEF with the points D (0, 0), E (1, 1), and F.
Tems11 [23]

Answer:

The area of the triangle is  \sqrt{3}

Step-by-step explanation:

Given:

Coordinates D (0, 0), E (1, 1)

Angle  ∠DEF = 60°

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To Find:

The area of the triangle

Solution:

The area of the triangle is  = \frac{1}{2}(base \times height)

Here the base is Distance between D and E

calculation the distance using the distance formula, we get

DE  = \sqrt{(0-1)^2 + (0-1)^2}

DE =\sqrt{(-1) ^2 + (-1)^2

DE = \sqrt{1+1}

DE = \sqrt{2}

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Height is DF

DF =tan(60^{\circ}) \times DE

DF = \sqrt{3} \times DE

DF = \sqrt{3} \times\sqrt{2}

Now, the area of the triangle is

= \frac{1}{2}({\sqrt{2})(\sqrt{3} \times \sqrt{2})

=\frac{1}{2}({\sqrt{2})(\sqrt{3} \sqrt{2})

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=\sqrt{3}

6 0
2 years ago
What is the answer plzzzzzz help a kid out
Komok [63]

Answer:

the answer is 8 by one of this question.

4 0
3 years ago
7. John's seafood restaurant is trying to estimate its profits. John has found that on average, each meal served costs the resta
laiz [17]

Answer:

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Step-by-step explanation:

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Work out 1/5 of 80 =
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Answer:

16

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