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3 years ago

Write 7/25 as a decimal show your work

Mathematics

2 answers:

Verizon [17]3 years ago

8 0

i barely remember how to do this

should b a decimal in between 7 and 00 i think idk

ira [324]3 years ago

4 0

Answer:

0.28 is a decimal and 28/100 or 28% is the percentage for 7/25.

Step-by-step explanation:

i needhelp one more little crown plzz

25x4=100

7x4=28

28/100

0.28

28%

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Kelly spent $20 on rides and snacks at the state fair if X is that amount she spit on rides and y is the amount she spent on sna

astra-53 [7]

Since ten plus ten is twenty I think that x and y is ten

3 0

3 years ago

Safiya deposited money into a bank account that earned 6.5% simple interest each year. After 312 years, she had earned $36.40 in

leonid [27]

Answer:

$1.80

Step-by-step explanation:

Use formula

$I=P\cdot i\cdot t,$

where I is interest, P is total principal, i is rate of interest per year (as decimal) and t is total time in years.

In your case,

I=$36.45, t=312, i=0.065, then

$36.45=P\cdot 0.065\cdot 312,\\ \\P\approx \$1.80$

6 0

3 years ago

Read 2 more answers

a boy is standing on a pole of height 14.7m throws a stone upwards. it moves in a vertical line slightly away from the pole and

fomenos

Answer:

The time taken for the upward motion is 1 second. The same time is taken for the downward motion

It reaches a maximum height of 4.9 meters.

Step-by-step explanation:

The equation of motion is:

$x(t) = -4.9t^{2} + 9.8t$

Since the term which multiplies t squared is negative, the graph is concave down, that is, x increases until the vertex, where it reaches it's maximum height, then it decreases.

Vertex of a quadratic equation:

Quadratic equation in the format $x(t) = at^{2} + bt + c$

The vertex is the point $(t_{v}, x(t_{v}))$ , in which

$t_{v} = -\frac{b}{2a}$

In this question:

$x(t) = -4.9t^{2} + 9.8t$

So $a = -4.9, b = 9.8$

Vertex:

$t_{v} = -\frac{9.8}{2*(-4.9)} = 1$

The time taken for the upward motion is 1 second.

$x(t_{v}) = x(1) = 9.8*1 - 4.9*(1)^{2} = 4.9$

It reaches a maximum height of 4.9 meters.

Downward motion:

From the vertex to the ground.

The ground is t when x = 0. So

$-4.9t^{2} + 9.8t = 0$

$4.9t^{2} - 9.8t = 0$

$4.9t(t - 2) = 0$

$4.9t = 0$

$t = 0$

$t - 2 = 0$

$t = 2$

It reaches the ground when t = 2 seconds.

The downward motion started at the vertex, when t = 1.

So the duration of the downward motion is 2 - 1 = 1 second.

5 0

3 years ago

Evaluate the expression 3.14(7)^2

ruslelena [56]

Answer:

153.86

Step-by-step explanation:

3.14(7)^2

3.14 × (7 × 7)

3.14 × 49

153.86

6 0

3 years ago

Is AB tangent to circle C?

viva [34]

Answer:

The line AB is a tangent of the circle with center C.

5 0

3 years ago