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3 years ago

Soo I haven't done ratios in a while.. Anyone get this?

Mathematics

2 answers:

Artyom0805 [142]3 years ago

6 0

Answer:

A) Yes

B) No

C) Yes

Step-by-step explanation:

A) The ratio of $\frac{1}{5}$ is 1:5. You can simplify ratios, so if you simplify 2:10, it would be 1:5.

B) You can't simplify $\frac{2}{5}$ to anything else and even if you do simplify 2:10, both forms won't match the answer.

C) You can simplify $\frac{4}{20}$ to $\frac{2}{10}$ , which then can be simplified to $\frac{1}{5}$ . So it is equivalent to 2:10.

Sauron [17]3 years ago

4 0

4/20 i think is the answerrr

You might be interested in

F = uv/u + v make u the subject

never [62]

I'm assuming that you mean

$\dfrac{uv}{u+v}$

because if you meant

$\dfrac{uv}{u}+v$

then u would simplify and you couldn't make it the subject.

Under this assumption, we start with

$F=\dfrac{uv}{u+v}$

We multiply both sides by $u+v$

$F(u+v)=uv$

We expand the left hand side:

$Fu+Fv=uv$

We move all terms involving u to the left and all terms not involving u to the right:

$Fu-uv=-Fv$

We factor u on the left hand side:

$u(F-v)=-Fv$

We divide both sides by $F-v$

$u=\dfrac{-Fv}{F-v}$

3 0

3 years ago

A cylindrical water tank is being filled with a hose. The depth of the water increases by 114 ft per hour. How many hours will i

Nimfa-mama [501]

2 hours and 14 min. 114 + 114 = 228. 312 - 228 = 84. 114 / 2 = 57. 84 - 57 = 27. 114 / 60 = 1.9. 27 / 1.9 = 14

4 0

3 years ago

Help ASAP

larisa86 [58]

Answer:

A 180-degree clockwise rotation about the origin followed by a translation 1 unit to the left.

6 0

3 years ago

Someone tell me the anwser and i need to show my work too

Zinaida [17]

First you need to find how much 20% of $18.50 is. To do this, you need to multiply 18.50 by 20% which in decimal form is 0.2
$18.50x0.2=$3.70
Now you need to subtract $3.70 from $18.50
$18.50-$3.70=$14.80
Now that you have the new price, you need to find 6.75% of it to get the sales tax, so you multiply $14.80 by 6.75%, which is 0.0675 as a decimal.
$14.80x0.0675=$0.999 or $1
Now you add the sales tax to $14.80
$14.80+$1=$15.80 or $14.80+$0.999=$15.799

6 0

3 years ago

Read 2 more answers

An estimated regression equation that was fit to estimate ductility in steel using its carbon content was found to be significan

AnnZ [28]

Answer:

At a level of 95%, it is expected that the interval [0.45; 11.59] contains the value of the ductility in steel when its carbon content is 0.5%.

Step-by-step explanation:

Hello!

Considering the dependent variable:

Y: Ductility in steel.

And the independent variable:

X: Carbon content of the steel.

The linear regression was estimated and a prediction interval was calculated.

The prediction interval is calculated to predict a value that the variable Y (response variable) can take for a given value of the variable X (predictor variable) in the definition range of the linear regression line. Symbolically [Y/X= $x_{0}$ ]

In this case 95% prediction interval for Y/X=0.5

At a level of 95%, it is expected that the interval [0.45; 11.59] contains the value of the ductility in steel when its carbon content is 0.5%.

I hope it helps!

6 0

3 years ago