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3 years ago

Use the substitution method.

1 answer:

4 0

E=number of eagles
c=number of condors

ttoal is 480
c+e=480

5 times as many condors and 9 times as many eagles totals 3260
5c+9e=3260

we have
c+e=480
5c+9e=3260

eliminateion
elmiminate c
times first equation by -5

-5c-5e=-2400

add to other equation

-5c-5e=-2400
 5c+9e=3260 +
0c+4e=860

4e=860
divide both sides by 4
e=215

sub back

c+e=480
c+215=480
minus 215 from both sides
c=265

thiis spring is

265 condors
215 eagles

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Pythagorean Theorem pls help :P

murzikaleks [220]

Answer:

x = $\sqrt{84}$

Step-by-step explanation:

According to Pythagorean Theorem, the square value of hypotenuse is equal to sum of square value of two legs:

x^2 + 4^2 = 10^2

x^2 + 16 = 100 subtract 16 from both side

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x = $\sqrt{84}$

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2 years ago

A shop recorded total sales of $2,000 on Monday. On Tuesday, its sales fell by 10%. On Wednesday, sales fell by another 20% comp

enyata [817]

2000 - Monday
2000 - 0.10(2000) = 1800 -- Tuesday
1800 - .20(1800) = 1440 -- Wednesday
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4 years ago

Solve the equation below 2x-4=10 A. X=10 B. X=14 C.X=7 D.X=2

professor190 [17]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

P->q is false and p is true. q is a.true b.false

kirill [66]

Answer:

Choice b. $q$ has to be false.

Step-by-step explanation:

Consider the truth table of $p \implies q$ ( $p$ implies $q$ ).

$p$ is true and $q$ is true: $p \implies q$ would be true.
$p$ is true and $q$ is false: $p \implies q$ would be false.
$p$ is false and $q$ is true: $p \implies q$ would be true.
$p$ is false and $q$ is false: $p \implies q$ would also be true.

The only combination where $p \implies q$ is false is when $p$ is true and $q$ is false. Hence, the $q\!$ here must be false.

3 0

3 years ago

Can I please have help me with this problem

guajiro [1.7K]

9514 1404 393

Answer:

B, C

Step-by-step explanation:

Shelby's total earnings will be the sum of the amount she has earned and the amount she can earn working h hours. That latter amount is 25h, since she makes $25 per hour. She wants that total to be at least $2000.

75 + 25h ≥ 2000

Dividing by 25 gives ...

3 +h ≥ 80

subtracting 3, we have ...

h ≥ 77

These match options B and C of your list.

8 0

3 years ago