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FromTheMoon [43]
2 years ago
11

Jacob opens a savings account for a vacation with $200.50. Jacob wants to have at least $856.90 in the account in 4 weeks. What

is the minimum amount Jacob should save per week to meet his goal? Enter your answer in the box.
Mathematics
1 answer:
zheka24 [161]2 years ago
6 0

Answer:

x = 164.10

Step-by-step explanation:

translated question says :

200.50 + 4x = 856.90

4x=656.40

x = 164.10

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A 5.8kg box is on a frictionless 45∘ slope and is connected via a massless string over a massless, frictionless pulley to a hang
nexus9112 [7]

Answer:

a) T = 20.601 N

b) T = 9.4585 N

Step-by-step explanation:

The tension in the string if the 5.8 kg box is held in place, so that it cannot move can be obtained as follows

For m = 2.1 Kg

∑ Fy = 0

T - W = 0  ⇒  T = W = m*g

⇒  T = 2.1 Kg*9.81 m/s²

⇒  T = 20.601 N  (↑)

The tension in the string once the box begins to move can be obtained as follows

For M = 5.8 Kg

∑ Fx' = M*a

where x' is the direction of the slope

then

∑ Fx' = M*a   ⇒  <em>T - M*g*Sin ∅ = M*a    (I)</em>

For m = 2.1 Kg

∑ Fy = m*a

⇒  T - W = m*a

⇒  <em>T - m*g = m*a    (II)</em>

If we solve the system of equations that comprises <em>I</em> and <em>II</em> we will know T:

T = M*m*g*(Sin ∅ -1) / (m - M)

⇒  T = (5.8 Kg)(2.1 Kg)(9.81 m/s²)(Sin 45º - 1) / (2.1 Kg - 5.8 Kg)

⇒  T = 9.4585 N

5 0
3 years ago
PLZ I NEED WITH THIS QUESTION PLZ
Gnom [1K]

Answer:

C, A ,B, Use the numbers tho.

Step-by-step explanation:

They are ordered from coldest to warmest. I hope this helps!

4 0
2 years ago
Please help like rn !!!!!!!!!!!!!!!
forsale [732]

Answer:

$455.84

Step-by-step explanation:

find area of the two halves of the circle and the rectangle

area of circle= \pi r^{2}

where r= 2 ft

therefore

\pi (2)^{2}\\=12.56  ft^{2}

area of rectangle= w*l

where w= 4ft and l= 5ft

therefore

(4)(5) \\=20 ft^{2}

add areas together

12.566 + 20 \\=32.56 ft^{2}

it costs $14 per square foot and there are 32.566 square feet, so multiply

14 * 32.56 \\= $455.84

3 0
2 years ago
I give brainlist
stepladder [879]
True because it had a strict pattern and measurable proportions. <span />
5 0
3 years ago
Read 2 more answers
What is the exact circumference of a circle with a diameter of 18cm? *
Delvig [45]
9pi trust me is the answer
3 0
2 years ago
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