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3 years ago

10

A drought can cause the level of the local water supply to drop by a few inches each week. suppose the level of the water supply

drops 2 inches each week how much will it change in 4 weeks.

2 answers:

erica [24]3 years ago

5 0

Dont you have to have the beginning amount of water?

snow_tiger [21]3 years ago

3 0

The water supply will drops 8 inches in 4 weeks.

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A child with a mass of 23 kg rides a bike with a mass of 5.5 kg at a velocity of 4.5m/S to the south. Compare the momentum of th

spayn [35]

Answer:

The child has a greater momentum than the bike.

Step-by-step explanation:

Since mass of child is more than the mass of the bike though they have same velocities.

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3 years ago

Read this and answer this for me Thanks <3

Norma-Jean [14]

Answer:

The answer is 1st point

Step-by-step explanation:

(12x²+4x-5)-(9x²-9x+1)

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3 years ago

In ∆ABC with m∠C = 90° the sides satisfy the ratio BC:AC:AB = 4:3:5. If the side with middle length is 12 cm, find: 1) The perim

olga55 [171]

*The side with the middle length is 12cm, therefore BC must be 12 cm

------------------------------------------------------------<span>
Ratio
------------------------</span>---------------------------------<span>--
BC:AC:AB
4 : 3 : 5

</span>-----------------------------------------------------------
<span>Find 1 share
</span>-----------------------------------------------------------<span>
Given that BC = 12 cm
4 shares = 12 cm
1 share = 12 ÷ 4 = 3cm

</span>-----------------------------------------------------------
Find AC (4 shares)
-----------------------------------------------------------<span>
3 shares = 3 x 3 = 9 cm
BC = 9cm

</span>-----------------------------------------------------------
<span>Find AB (5 shares)
</span>-----------------------------------------------------------<span>
5 shares = 5 x 3 = 15cm
AB = 15cm

</span>------------------------------------------------------------
Length
-----------------------------------------------------------
BC : AC : AB
12cm : 9cm : 15cm<span>

---------------------------------</span>---------------------------------<span>
Perimeter
</span>------------------------------------------------------------------
<span>12 + 9 + 15 = 36cm

</span>------------------------------------------------------------------
<span>Answer: The perimeter is 36cm
</span>------------------------------------------------------------------<span>

</span>------------------------------------------------------------------
<span>Area
</span>------------------------------------------------------------------
1/2 x 9 x 12 = 54cm²<span>

</span>------------------------------------------------------------------
Answer: Area = 54cm²
------------------------------------------------------------------<span>

Given that the biggest ratio is AB
</span>⇒AB is the hypotenuse
AB = 15 cm

------------------------------------------------------------------
Answer: Hypotenuse = AB = 15cm
------------------------------------------------------------------

8 0

3 years ago

Read 2 more answers

Six times a number increased by 20 is four less than eight times the number. Find the number

DaniilM [7]

Greetings!

"<span>Six times a number increased by 20 is four less than eight times the number. Find the number."...

This would be, as an equation:
</span> $6x+20=8x-4$

Solve:
Add 4 and -6x to both sides.
$(6x+20)+4+(-6x)=(8x-4)+4+(-6x)$
Simplify.
$24=2x$
Divide both sides by 2.
$(24)/2=(2x)/2$
Simplify.
$12=x$
$x=12$
<span>
x=12

Hope this helps.
-Benjamin

</span>

4 0

3 years ago

What is x? answer fast please!

Sindrei [870]

Answer:

$\Huge \boxed{{x=15\°}}$

Step-by-step explanation:

Angles on a straight line add up to 180 degrees.

We can create an equation.

x + 165 = 180

Solve for x.

Subtract 165 from both sides.

x + 165 - 165 = 180 - 165

Simplify the equation.

x = 15

6 0

3 years ago

Read 2 more answers