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3 years ago

A northern elephant seal made 60 dives in 12 hours at this rate how many dives did the sea turtle make in seven hours

1 answer:

7 0

The answer is 56! I used a double number line! You have to get the unit rate first! Unit means 1, you have to get from 12 to 1! I did 12 divided by 12, and got 1! Whatever I do to the bottom I do to the top. So I divided 60 by 12 and got 5. Now we have to get to seven, so I multiplied 1 x 7 and got 7. Than I multiplied 5 times 7 and got 56! I hope <em>I helped! :D</em>

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Sam's test scores increase proportionally by 5 points for each hour she spends studying. How many points would her score increas

Semenov [28]

If she studied for 2.3 she would have a total of 11.5 because if she got 5 points per hour you just have to multiply it the number of hours she spent studying. So 2.3 x 5 = 11.5! :-)

4 0

3 years ago

Read 2 more answers

Find the value of x and y

Nesterboy [21]

Step-by-step explanation:

step 1. break into 2 shapes: a rectangle of sides 3 and 4. a triangle of sides (x - 3), 4, and y.

step 2. y = 4sqrt(2) (definition of a 45° triangle)

step 3. note: sqrt is the square root.

step 4. x - 3 = 4 (definition of a 45° triangle)

step 5. x = 7 (add 3 to both sides).

6 0

3 years ago

Use FOIL to explain how to find the product of (a + b)(a − b). Then describe a shortcut that you could use to get this product w

andriy [413]

Greetings!

FOIL stands for:

Front
Outside
Inside
Last

This tells which terms to multiply when using the Distributive Property.
(NOTE: Only applicable with 2-term Polynomials)

For Example:
$(a+b)(a-b)$

Multiply the Fronts of both Equations:
$(a*a)$

Multiply the Outsides of both Equations:
$(a*a)+(a*-b)$

Multiply the Insides of both Equations:
$(a*a)+(a*-b)+(b*a)$

Multiply the Lasts of both Equations:
$(a*a)+(a*-b)+(b*a)+(b*-b)$

Simplify.
$=a^2-ab+ba-b^2$

$=a^2-b^2$

Alternative Method (My Prefered Method)
$(a+b)(a-b)=a(a+b)-b(a+b)$

Use Regular Distributive Property.
$a(a+b)-b(a+b)$

$a*a+a*b-b*a+-b*b$

Simplify.
$a^2+ab-ba+-b^2$

$a^2-b^2$

Hope this helps.
-Benjamin

6 0

3 years ago

Read 2 more answers

You are considering installing a pendulum in the amusement park visitor’s center. The time it takes a pendulum to complete a ful

kykrilka [37]

Answer:

π (3.14) seconds

Step-by-step explanation:

T = 2π√(L/32)

T = 2π√(8/32)

T = 2π√(1/4)

T = 2π(1/2)

T = π

It will take π seconds for the pendulum to complete a full cycle if the pendulum is 8 feet long

5 0

3 years ago

If both pairs of opposite sides of the quadrilateral are congruent, then the quadrilateral is a?

Bond [772]

Answer:

B (parallelogram)

Step-by-step explanation:

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5 0

3 years ago