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Ronch [10]
3 years ago
15

PLEASEE HELP WILL GIVE BRAINLIEST SHOW STEPSSS

Mathematics
1 answer:
ElenaW [278]3 years ago
4 0

Answer:

im pretty sure it'd be 76 weeks!

Step-by-step explanation:

one water tank holds 1216 and loses 5 gallons/week

another water tank holds 1520 gallons and loses 9 gallons/week

youd make an equation:

1216-5x=1520-9x

(each side being the amount of water the tank can hold minus the amount it loses per week [x])

heres how you execute the equation:

1216-5x=1520-9x

-5x=1520-1216-9x

-5x=304-9x

-5x+9x=304

4x=304

x=304/4

76

after you do the equation, you get x=76, meaning 76 weeks! :-)

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Is 9,156 divisible by 2,3,4,5,6,9,10
LekaFEV [45]

No, 9,156 divisible by 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 109, 218, 327 , 436, 654 , 763, 1308, 1526, 2289, 3052, 4578, and 9156

8 0
3 years ago
AD is a diameter of a circle and AB is a chord. If AD=34cm, AB=30cm, the distance of AB from the centre of the circle is :
e-lub [12.9K]

Answer:

   The distance is 8 cm

Step-by-step explanation:

The chord and the diameter form one leg and the hypotenuse of a right triangle. The other leg, BD, has length ...

  BD² +AB² = AD²

  BD² = AD² -AB² = 34² -30² = 256

  BD = √256 = 16

The segment from the center of the circle to the midpoint of the chord is the midline of triangle ABD, so is half the length of BD.

  distance from AB to the center = 16/2 = 8 . . . cm

7 0
4 years ago
Claris invested $140. She earned a simple interest of 3% per year on the initial investment. If no money was added or removed fr
just olya [345]

Answer:

$8.40

Step-by-step explanation:

The formula for calculating simple interest is

principal * interest rate * time .

Plugging 140 into the principal, or starting value, 3% as the interest rate, and 2 (years) for the time, we get 140*0.03*2 = 8.4, or $8.40 as our answer. Note that 3% turned into 0.03 as turning a percentage into a decimal requires us to divide the decimal by 100

7 0
3 years ago
The ancient Greeks could bisect an angle using only a compass and straightedge.A. TrueB. False
Gala2k [10]

Answer: True.

The ancient Greeks could bisect an angle using only a compass and straightedge.

Step-by-step explanation:

The ancient Greek mathematician <em>Euclid</em> who is known as inventor of geometry.

The Greeks could not do arithmetic. They had only whole numbers. They do not have zero and negative numbers.

Thus, Euclid and the another Greeks had the problem of finding the position of an angle bisector.

This lead to the constructions using compass and straightedge. Therefore, the straightedge has no markings. It is definitely not a graduated-rule.

As a substitute for using arithmetic, Euclid and the Greeks learnt to solve the problems graphically by drawing shapes .

5 0
4 years ago
Read 2 more answers
A 13-A ladder leans against the side of a house. The bottom of the ladder is 8 ft from the side of the house. How high is the to
Anit [1.1K]

Answer:

10.2 ft

Step-by-step explanation:

a^{2} +b^{2} = c^{2} \\8^{2} +b^{2} =13^{2} \\

64 + b^{2} = 169

b^{2} = 105\\

b=\sqrt{105}

b= 10.2469

5 0
3 years ago
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