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3 years ago

Please help!!!!! giving brainlist

Mathematics

2 answers:

Lilit [14]3 years ago

7 0

Answer:

1. 25 2. 6.5 3. 10

Step-by-step explanation:

I want brainlyest

krok68 [10]3 years ago

5 0

Answer:

A. 25 ounces B. 6.5 ounces C. 10 ounces

Step-by-step explanation:

$\frac{3}{5}x = 15\\\implies x = \frac{5}{3}\times{15}\\\implies x = 25$

$y = 15 - 8.5\\= 6.5$

$\frac{8}{5}z = 16\\\implies z = \frac{5}{8}\times16\\\implies z = 10$

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Alisha earned $12.40 mowing the lawn and $6.50 raking the leaves. How much money did she earn in all?

antoniya [11.8K]

Alisha kiếm được tổng cộng là 18.90 đô cho cả hai công việc

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2 years ago

In circle o,find the value of x, rounded to the nearest tenth.

Gemiola [76]

Answer:

$\huge\boxed{x \approx 5.4}$

Step-by-step explanation:

We can break down this problem by first realizing different parts of the circle.

The line which is 8 units long is a chord of the circle.
The line that is 3.6 is <em>almost</em> the radius of the circle
The line that x sits on is the radius.

With this, we can find out if we find the radius of the circle, we have our answer.

We should also note that the angle formed by the 3.6 units long line and the chord is a right angle.

<em>What we need is a way to find the radius of the circle</em><em>. This will get us x</em>. The radius of a circle will be the length of any line that starts from point O and ends at the circle edge.

If we draw a line connecting the end of the 3.6 line at point O to the end of the 8 unit long chord, we get a triangle! (Image attached for reference).

We can solve for the hypotenuse using the Pythagorean Theorem. This theorem states that:

$\displaystyle a^2 + b^2 = c^2$

Since we know one side is 3.6, we can use that as A. The second side will be 4 since the 3.6 line lies directly in the center of the chord = 8/2 = 4!

$3.6^2 + 4^2 = c^2$
$12.96+16=c^2$
$28.96=c^2$
$\sqrt{28.96} = c$
$5.4 \approx c$

Therefore, since this is the radius of the circle (also the hypotenuse), this can be said for any line that comes from point O onto the edge of the circle.

The line X does just that. Therefore, the value of x is also 5.4.

Hope this helped!

4 0

2 years ago

2 Richard and Jason each begin filling pools at the same time.

alina1380 [7]

The quantity of the liquid in Richard's tank after 20 minutes will be 120 gallons and in Jason's tank will be 240 gallons.

<h3>What are gallons?</h3>

A gallon is a British unit which is used for the measurement of liquids that is equal to eight pints. In Britain, it is equal to about 4.546 litres. In America, it is equal to about 3.785 litres.

It is given in the question that:-

Richard fills his pool at a rate of 6 gallons per minute.

Jason's pool already contains 200 gallons, and he fills it at a rate of 2 gallons per minute.

After 20 minutes the amount of liquid in the tank will be:-

For Richard = 6 gallons per minute. x 20 minutes= 120 gallons

For Jason= 2 gallons per minute x 20 =40 gallons

Jason has 200 gallons already in the tank

So it will become = 200+24=240 gallons.

Hence quantity of the liquid in Richard's tank after 20 minutes will be 120 gallons and in Jason's tank will be 240 gallons.

To know more about Gallons follow

brainly.com/question/16691874

#SPJ1

7 0

2 years ago

Solve the system of equations using substitution.<br> Y= 2x - 10<br> Y= 4x - 8

Oksana_A [137]

Answer:

Step-by-step explanation:

4x - 8 = 2x - 10

2x - 8 = -10

2x = -2

x = -1

y = 4(-1) - 8 = -4 -8 = -12

(-1, -12)

8 0

2 years ago

PLEASE HELP! THIS IS FOR A UNIT!

AlexFokin [52]

Answer:

$n_{1} =-3+2i\\\\n_{2} =-3-2i$

Step-by-step explanation:

You can see the attached picture

7 0

3 years ago