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3 years ago

As a cold front passed through an area, the temperature changed by an average of −4°F°

Mathematics

2 answers:

elixir [45]3 years ago

8 0

Answer:

-20°F

Step-by-step explanation:

ikadub [295]3 years ago

5 0

-20 ^ F ................

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i’ll give a brainliest please just help !!!!!

nignag [31]

Answer:

which numbers do you need to know

Step-by-step explanation:

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3 years ago

Julia spends $2.25 on gas for her lawn mower. She earns $15.00 mowing her neighbors lawn. What is Julia’s profit?

Korolek [52]

Her profit is $ 13.25. It’s simple math all you have to do is subtract. 2.25 - 15.00= 13.25

8 0

4 years ago

How can you tell which function has the greatest constant of variation?

alekssr [168]

The constant of variation in a direct variation is the constant (unchanged) ratio of two variable quantities.

The formula for direct variation is

y=kx (or y=kx)

where kk is the constant of variation.

Example 1:

If y varies directly as x and y=15 when x=24,

find x when y=25 .

Find the constant of variation.

k=y/x=15/24=5/8y=5/8x

To find x, substitute 25 for y.

25=5/8x

x=40

The constant of variation in an indirect variation is the constant (unchanged) product between two variable quantities.

The formula for indirect variation is

xy=k (or y=k/x )

where k is the constant of variation .

Example 2:

If it takes 4 hours at an average speed of 90 km/h to do a certain journey, how long would it take at 120 km/h?

Find the constant of variation.

k = speed · time

k=90⋅4=360

Then,

time=k/speed =360/120 =3 hours.

6 0

4 years ago

If m = 80° and m = 40°, then m 2 = A)20 B)40 C)60

RoseWind [281]

Answer:

I think its 40 I could be wrong

Step-by-step explanation:

I had subtract 80 and 40

5 0

3 years ago

Help pls pls picture below

tatuchka [14]

Answer:

y = 11, x = 76/6

Step-by-step explanation:

We will start by finding y

92 + 8y = 180 we know this because the angle degree of one line is 180 you can just do simple elimination to solve this

92+ 8y = 180 subtract 92 from both sides

8y = 88 then divide both sides by 8 and you get

y = 11

Now for x we know the blank angle is equal to 88 because of vertical angles

so now it is 88 + ( 6x - 16) = 180 again we do elimination

88 + 6x - 16 = 180 subtract 88 from both sides and you get

6x - 16 = 92 then subtract 16

6x = 76 then divide both sides by 6 and get

$x = \frac{76}{6}$

hope this helps :)

5 0

3 years ago

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