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alex41 [277]
3 years ago
10

It takes 3/4 of an hour to paint 3/5 of a room. How long does it take to paint a room?

Mathematics
1 answer:
Dmitry [639]3 years ago
3 0

Answer:

1 1/4 hours

Step-by-step explanation:

.75/.6=x/1

cross multiply

.75=.6x

divide by .6

x=1.25 hours

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How to find the maximum or minimum value of a quadratic function?
kipiarov [429]

Answer:

Vertex form

Step-by-step explanation:

You convert to  vertex form  a(x - b)^2 + c . The coordinates of the maxm/minm will be (b, c).

For example find minimum value of  x^2 + 5x - 6:-

x^2 + 5x - 6

=  (x + 2.5)^2 - 6.25 - 6

= (x + 2.5)^2 - 12.25

The coordinates of minimumm will be (-2.5, -12.25)  The values of the minimum of the function is -12.25

6 0
3 years ago
Use the distributive property to write an equivalent expression. 6(x+y+z)
RSB [31]

Answer: To confuzing

Step-by-step explanation:

7 0
2 years ago
PLEASE LED ME THE ANSWER<br> ILL GIVE YOU 20 POINTS
krok68 [10]

Answer:

DEC+DEF=180

DEC=180-116

DEC=64°

in triangle DCE

angle D+angle C+angle E=180

7y+6+4y+64=180

11y+70=180

11y=180-70

11y=110

y=110/11

y=10°

angle C=4y

=4(10)

=40°

3 0
2 years ago
In triangle ABC, the measure of ∠B is 90°, BC=16, and AC=20. Triangle DEF is similar to triangle ABC, where vertices D, E, and F
nevsk [136]
The third side of triangle ABC is AB. Using the Pythagorean Theorem, its length is 12. 
12² + 16² = 20² 

∠F is congruent to ∠C and so the sin(∠F) = sin(∠C) 

The sin(∠C) = opposite/hypotenuse 
= |AB| / |AC| 
= 12/20 
= 3/5 
= 0.6 

Answer: 
Yes, it is 0.6
6 0
3 years ago
What is 2+x if x=2? thanks
11Alexandr11 [23.1K]
Reorder 2 and x.
x + 2
4 0
3 years ago
Read 2 more answers
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