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2 years ago

If x - 2y + z = 5 and -x + 3y - z = 2, then y = ?

Mathematics

1 answer:

jok3333 [9.3K]2 years ago

5 0

Answer:

y=10

Step-by-step explanation:

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11. What is the perimeter of the garden?

Ilya [14]

Answer:

19 $\frac{1}{4}$ or 18 $\frac{5}{4}$

Step-by-step explanation:

First, add the whole numbers

3, 7, and 8

Add the fractions

$\frac{1}{2}$ + $\frac{3}{4}$ = $\frac{5}{4}$

IF YOU WANT SIMPLIFIED NUMBER DO THIS

$\frac{5}{4}$ =1 $\frac{1}{4}$

18+1 $\frac{1}{4}$ =19 $\frac{1}{4}$

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2 years ago

Seven less than twice a number is 5

marin [14]

Yes, i believe so because u can count back twice and u will get 5. You could al so do: 7-2=5. Hope this helps

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2 years ago

Which expression is equivalent to (4p^-4 q)^-2/ 10pq^-3?

Anit [1.1K]

Answer:

$\dfrac{p^{7} q}{160}$

Step-by-step explanation:

$\dfrac{(4p^-4 q)^-2}{10pq^-3} =$

$= \dfrac{4^{-2}p^{-4\times (-2)} q^{-2}}{10pq^-3}$

$= \dfrac{4^{-2}}{10}p^{8-1} q^{-2-(-3)}$

$= \dfrac{1}{4^2 \times 10}p^{7} q^{-2 + 3}$

$= \dfrac{1}{160}p^{7} q$

$= \dfrac{p^{7} q}{160}$

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2 years ago

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A triangle has an area of 35 square inches. the length of one of the sides it 10 inches. what is the length of the perimeter? in

Serggg [28]

The perimeter would be about 34.4 because if you choose the bottom side to be ten, by multiplying 35 by 2 to get 70 you can divide by 10 to get 7. Since you know the height and width, you can use pythagorean theorem, a^2 + b^2 = c^2. Plug in the numbers you have 10^2+7^2=c^2. c^2=149, so if you square root 149 you will get a irrational number but when rounded you get 12.2- so that is one side multiply by 2 and get 24.4- and add 10 to get 34.4

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2 years ago

A data set is made up of the values 6, 6, 8, 12, and 18.

navik [9.2K]

Answer:

Step-by-step explanation:

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2 years ago

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