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3 years ago

HELPPPP PLSSS ILL GIVE U 40 POINTSSS

Mathematics

2 answers:

aalyn [17]3 years ago

6 0

I’m pretty sure it’s 140

mash [69]3 years ago

4 0

105

140

explanaion: its one of the two i believe

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Person A can paint the neighbors house 2 times as fast as Person B. The year A and B worked together, it took them 2 days. How l

seraphim [82]

Answer:

A can paint in 3days and B in 6 days

Step-by-step explanation:

From the question we were told

Person A can paint the neighbors house 2 times as fast as Person B

Let A only paint the neighbors house in X days

Let B only paint the neighbors house in 2X days

If we express the given information from the question in terms of fraction we have,

1/X + 1/2X = 1/2

3/2X = 1/2

if we cross multiply we have

6= 2X

X= 6/2

X= 3

Then A can paint the house in 3 days and B in 2(3)= 6days.

5 0

3 years ago

Too stoned pls help

Talja [164]

13x=65
65/13=5
So x equals 5

3 0

3 years ago

Put these numbers in order from least to greatest. -15-26/40, -15, 18/25, 15.85

Norma-Jean [14]

-15 26/40=-15.65
-15
18/25=0.72
15.85
so From least to greatest
-15.65, -15, 0.72, and 15.85

6 0

3 years ago

Given a circle with a diameter of 2/3, which equation expresses π as the ratio of the circumference of a circle to its diameter?

Advocard [28]

The circumference of a circle can be found using the equation: c = 2πr, where c=circumference and r=radius.
The radius of the circle is also equal to half the diameter: r = $\frac{1}{2} d$ , where r=radius and d=diameter.

Plug the equation for the radius of the circle into the equation for the circumference of the circle and simplify to get an equation that relates circumference and diameter:
$c = 2 \pi r\\
c = 2 \pi (\frac{1}{2} d)\\
c = \pi d$

Now solve that equation for π (aka isolate π) to get the ratio of the circumference to the diameter:
$c = \pi d \\
 \pi = \frac{c}{d}$

You know that the diameter, $d = \frac{2}{3}$ , so plug that into your ratio to get your answer. Remember that dividing by a fraction is equal to multiplying by the inverse of that fraction (aka the fraction flipped):
$\pi = \frac{c}{d}\\
\pi = \frac{c}{\frac{2}{3}}\\
\pi = c \times \frac{3}{2} \\
\pi = \frac{3c}{2} 
$

Your answer is B) 3C/2 = π.

6 0

3 years ago

Read 2 more answers

A rod was cut into 3 piece the length of the 3 piece are in the ratio of 5 : 3 :2 if the shortest is 25cm how long was the rod

Vesnalui [34]

Answer:

125 cm

Step-by-step explanation:

Ratio of pieces of the rod:

5:3:2

In total, the rod is equal to:

5x+3x+2x= 10x

Since the shortest peace:

2x = 25 cm,

Length of the rod:

10x = 5* 2x = 5* 25 cm = 125 cm

3 0

3 years ago