All categories

3 years ago

Anna can type 123 in 3 minutes ,caroline can type220 words in 5 minutes who can type faster

2 answers:

7 0

Hello! To solve this problem, we'll need to find a common denominator and set each ratio accordingly.

Anna- 123 in 3 minutes
123:3

Caroline- 220 in 5 minutes
220:5

Both 3 and 5 can go into 15.

Caroline: $\frac{220}5} = \frac{660}{15}$
Anna: $\frac{123}{3} = \frac{615}{15}$

Anna can type faster than Caroline. Hope this helps! :)

Rasek [7]3 years ago

4 0

Caroline.
If you divide 123 by 3 to see how many words Anna types per minute, its comes to 41 words/minute. Dividing 220 by 5 to find the words/minute Caroline types would result in 44 WPM.

You might be interested in

Y=f(x)=-5x find f(x) when x=3

BartSMP [9]

Answer:

Step-by-step explanation:

y=f(x)=-5x

since x=3 just replace x with 3

y=f(x)=-5(3)

y=f(x)=-15

8 0

3 years ago

A taxi driver wrote a formula to represent the mileage and fee for his last customer. He wrote the equation 3.00 + 0.50m =9.50,

Lemur [1.5K]

3.00 + 0.50m = 9.50

2. true
5. true

4 0

3 years ago

Read 2 more answers

Work out size of angle cde

-Dominant- [34]

Step-by-step explanation:

CDE = 2x, DEF = x

hexagon = 720°

720 = 115 + 145 + 160 + 90 + 2x + x

720 = 3x + 510

720 - 510 = 3x

210 = 3x

x = 210 ÷ 3

x = 70°

CDE = 2x

= 2(70)

= 140°

8 0

3 years ago

Two angles are vertical angles. If one angle measures 52.7 degrees, what does the other angle measure?

guajiro [1.7K]

127.3 is the answer I hope you found this useful bro or girl lol

6 0

3 years ago

Evaluate ∫C ysin(z)ds, where C is the circular helix given by the equations x = cos(t), y = sin(t), z = t, 0 ≤ t ≤ 2π. SOLUTION

Ivahew [28]

The line integral is

$\displaystyle\int_Cy\sin z\,\mathrm ds=\int_0^{2\pi}y(t)\sin z(t)\,\sqrt{\left(\frac{\mathrm dx}{\mathrm dt}\right)^2+\left(\frac{\mathrm dy}{\mathrm dt}\right)^2+\left(\frac{\mathrm dz}{\mathrm dt}\right)^2}\,\mathrm dt$

We have

$x=\cos t\implies\dfrac{\mathrm dx}{\mathrm dt}=-\sin t$

$y=\sin t\implies\dfrac{\mathrm dy}{\mathrm dt}=\cos t$

$z=t\implies\dfrac{\mathrm dz}{\mathrm dt}=1$

so the integral reduces to

$\displaystyle\int_0^{2\pi}\sin^2t\sqrt{(-\sin t)^2+\cos^2t+1^2}\,\mathrm dt=\frac{\sqrt2}2\int_0^{2\pi}(1-\cos2t)\,\mathrm dt=\boxed{\frac\pi{\sqrt2}}$

5 0

4 years ago