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sweet [91]
3 years ago
14

Find the solution to the system of equation 8x-4y=16 8x+4=16

Mathematics
1 answer:
Yuliya22 [10]3 years ago
3 0

Answer:

1.5 or infinite

Step-by-step explanation:

For the second one, 8x+4=16, suppose x is 1.5 (1 1/2), then 8x1.5 is 12, then 12+4 is 16.

As for the first one, their is infinite possibilities. If x equals 3 and y is 2, then 8x3=24 and 4x2=8, and 24-8=16. Another example is if x equals 4 and y is 4. Then 8x4=32 and 4x4=16, then 32-16=16. And one final example to make sure you understand. X equals 10 and y equals 20. 8x10=80 and 4x16=64, then 80-64=16.

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Last​ month, Ari​'s neighbors paid him to take care of their cat when they went on vacation. He spent ​$5 of his earnings on an
IgorC [24]

Answer:

They paid him $25

Step-by-step explanation:

Start by adding 5 to 13

5+13=18

Then add the sum to 7

18+7=25

You got your answer

I hope this helps :)

3 0
3 years ago
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A scale drawing has a scale of 1/4in:12ft. Find the length on the drawing for each actual length. 15 ft.
leonid [27]
So the ratio is at ¼ : 12, namely the drawing has ¼ inch to an actual 12 feet.

so, what would it be for an actual 15 feet on the drawing then?

\bf \begin{array}{ccll}
\stackrel{inches}{drawing}&\stackrel{feet}{actual}\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
\frac{1}{4}&12\\\\
d&15
\end{array}\implies \cfrac{\quad \frac{1}{4}\quad }{d}=\cfrac{12}{15}\implies \cfrac{\quad \frac{1}{4}\quad }{\frac{d}{1}}=\cfrac{12}{15}
\\\\\\
\cfrac{1}{4}\cdot \cfrac{1}{d}=\cfrac{12}{15}\implies \cfrac{1}{4d}=\cfrac{12}{15}\implies 15=48d\implies \cfrac{15}{48}=d\implies \cfrac{5}{16}=d
6 0
3 years ago
Question number 41 only . thank you
docker41 [41]

Answer:

x^2 +y^2

Step-by-step explanation:

Dude this is Pythragorean Theorem =)).

You may have missed this part of your lesson. It's ok and also not ok at the same time beacause pythagorean theorem is a meme.

Ok I'll explain once =)).

Thousands of years ago, a mathematician named Pythagore found out that if we have 3 squares, with one square's area equals to the sum of two other squares, then when we put the sides of the squares together to form a triangle , it'll always be a right triangle ( a triangle with one of its angle is 90°). A square area is measured by the length of its side multipled by itself. So he came up with the statement : In a right triangle, the length of the hypotenuse( the side that does not connect to the right angle) is equalled to the sum of squared other sides.

EG.

In this triangle, the right angle is ^ACB. If length of BC is <em>a</em><em>,</em><em> </em>length of AB is <em>c</em>, length of BC is <em>a</em>

A

I We have a formula :

I \ <em>a</em>^2 + <em>b</em>^2 = <em>c</em>^2

I \

I \

I <em>b</em> \ <em>c</em>

I \

I \

I______\

C <em> a </em> B

So now you can use pythagorean theorem to show off =)).

HOPE YOU LEARN WITH JOY AND HIGH GRADES !!!

7 0
3 years ago
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egoroff_w [7]

Answer:the answer  is a

Step-by-step explanation:

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Whats the area of a square computer screen with 21-inch sides
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84 Sq inches by 21 x 4
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