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Gnom [1K]
2 years ago
9

X=-7y+5 5x=4y=-6 solve by substitution

Mathematics
1 answer:
lyudmila [28]2 years ago
4 0
5x (-7)y=4
y=-4/35
5x=4
x=4/5
(x, y) = (4/5, 4/35)
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Suppose 20 rabbits are taken to an island. the rabbit population then triples every year. the function f(x)
Zanzabum
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5 0
3 years ago
I dont understand this question, i did the factor of 36x^2 - 49 but I dont understand the second part
Nadya [2.5K]

Answer:

a = 6

b = 7

Step-by-step explanation:

Since both 36 and 49 are perfect squares, you can find their square roots which are 6 and 7.

To check to see if it is correct, replace the a with 6 and replace the b with 7, then evaluate the exponents.

8 0
2 years ago
What is 5/47 as a decimal rounded to 3 decimal places?
MAXImum [283]

Answer:

You divide 5 by 47 and then see if the fourth digit after the decimal is 5 or greater or less than 5. If it's less, the digit before it remains the same and the decimal cuts off at it. If it's 5 or greater, the digit before it goes up one and the. decimal cuts off at it. Using this, you should get 0.106, I think.

5 0
3 years ago
 If a 10-pound sack of potatoes costs $6.55, how much would 1 pound cost? Round your answer to the nearest cent. 
Black_prince [1.1K]
\begin{array}{ccc}10\ lb&-&\$6.55\\\\1\ lb&-&\$ x\end{array}\ \ \ |cross\ multiply\\\\\\\\10\cdot x=1\cdot6.55\\\\10x=6.55\ \ \ \ |divide\ both\ sides\ by\ 10\\\\x=\frac{6.55}{10}\\\\x=0.65\underline{5}\approx\boxed{\$0.66}\\

If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up (+1).

3 0
3 years ago
I only need questions 2 and 3 it’s urgent could someone please help?
marta [7]

Answer:

a = x-intercept(s):  ( 3 , 0 )

y-intercept(s):  

( 0 , 6 )

B = x-intercept(s):  

( 10 , 0 )

y-intercept(s):  

( 0 , 4 )

Step-by-step explanation:

#

3 0
2 years ago
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