There are 20 marbles in a bag. 16 are red. The remaining are white. What is the probability of selecting a red marble

Simplifying Expressions Using the Properties of Exponents (Four Examples)Daniel Ozimek

Answer:

Step-by-step explanation:

sum of angles of a triangle=180°

9x-2+3x-19+3x+6=180

15x-15=180

15x=180+15=195

x=195/15=13

m∠G=9x-2=9×13-2=117-2=115°

Answer:

£58.50

Step-by-step explanation:

Ratio of Paint : Cost

10 : 45

13 : x

10x : 585

[tex] \frac{10x}{10} = \frac{585}{10} \\ x = 58.5 [/tex]

Answer:

7.5m

Step-by-step explanation:

Set up a proportion and cross multiply to find the unknown

Hope this helps

The elongation of spring by 170 newtons force maintaining the given ratio is 7.5 cm.

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

Proportion is the relation of a variable with another. It could be direct or inverse.

As per the given question,

Elongation of spring in 180 newtons = 5 cm

The ratio of elongation to force applied = 5/180

The force the second time is 270 newtons.

Let's say the elongation at this time is x cm.

The ratio of elongation to force applied = x/270

Both ratios must be the same.

Therefore,  x/270 = 5/180

x = 270/36 = 7.5 cm

Hence "The elongation of spring by 170 newtons force maintaining the given ratio is 7.5 cm".

For more information about ratios and proportions,

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Answer:

Step-by-step explanation:

Part one

1 mile per hour = 1.60 kilometers per hour

30 miles per hour = ?

Step 1: Set up a fraction.

The units must be on the same level. And the rate in KM (kilometer) per hour will be a variable, "[tex]k[/tex]". It does not matter whether they are top or bottom.

[tex]\frac{1.60}{1} = \frac{k}{30}[/tex]

As you can see, 1 mile per hour and 30 miles per hour are at the same level, leaving the rest on the same level, as well.

Step 2: Solve

[tex]\frac{1.60}{1} = \frac{k}{30}[/tex]

1.60 × 30 = 48

1 × k = 1

Therefore, the rate is 48 kilometers per hour.

Part 2

This part is mainly the same as the first part. Fractions. However, since we've already found out the answer for part one, it will be simple.

Step 1: Multiply the result to 5.

48 × 5 = 240

Therefore, the cyclist will travel 240 kilometers in 5 hours.

Step-by-step explanation:

First, to make everything more clear, rewrite it like this-

1 mile = 1.6km

So we have to multiply 30 (miles) by 1.6 (km)

30 x 1.6 + 48

So it is 48km per hour, now we have to calculate how many km does she ride in 5 hours.

We have to multiply 48 by 5 which equals 240

So the answer is 240km

Answer:

Sorry for the late notice but I

Di ko alam Yan sorry

Step-by-step explanation:

Bobo ako eh ML nalng Joke lang Tanong nalng kayo Ng iba

Answer:

152

Explination:

this is answer

Brainliest answer: thx(:

Answer:

a) x

b)[tex]w^{4}[/tex]

Step-by-step explanation:

Answer:34,587

Step-by-step explanation:

Answer:

the 1. is y = (5/4)x + 6 and 2 . is y = 20x+10, so you are right, both of them correct

Answer:

2.5 f

Step-by-step explanation:

5

F x —

2

5

— f

2

I hope it's help :)

Answer:

hi good morning friends

Answer:

Step-by-step explanation:

The triangle’s angles add up to 180 degrees

so 40 + (16x + 2) + ∠C = 180

The straight angle is 180°

so ∠C = 180 - (23x + 7)  

∠C = 180 - 23x -7

∠C = 173 - 23x

and then 40 + (16x + 2) +(173 - 23x) = 180

40 + 16x + 2 + 173 - 23x = 180

215 - 7x = 180

-7x = 180 - 215

-7x = -35

x = 5

please give me a brainliest answer

Answer:

B.) She gets $6.50 per candle.

Step-by-step explanation:

19.5 (the price of 3 candles) divided by 3 is 6.5.

Answer:

[tex]m=− 32​ ≈−0.666666667[/tex]

Step-by-step explanation:

Answer:

You have to know the basic properties of exponents.

Jill's answer is wrong because you add the powers when there are like bases. You don't multiply.

[tex]2^{-3} *2^{6} = 2^{3}[/tex]

-3+6=3

The base stays the same.

Answer:jone cần lái xe với tốc độlà:

Step-by-step explanation:   320/2=160(km/h)

Answer:

12.5 km per litre

Step-by-step explanation:

Calculating the amount of kilometres per litre:

Since 507km requires 40.5 litres:

1 litre would require 507/40.5

= 12.5185185

≈ 12.5km per litre

Hope this helps and be sure to have a wonderful time ahead at Brainly! :D

Answer:

(write this in the format your curriculum suggests, most are different)

Since BC is longer than AB, this means m<bcd is smaller than m<bad.

A way to prove it mathematically is to look at the triangle on the left. Since It's an isosceles triangle, m<cda and m<dac are equal. However, the triangle on the right does not have two proven congruent sides. All we know is BC is larger than the other side lengths. In a figure like that, the obtuse angle that meets the longest side would be the largest angle.

Apologies for being so wordy.

Answer:

2

9/5

Step-by-step explanation:

2/1 = 2

18/10 (divide by 2 up and down) = 9/5

Answer:

[tex]\frac{25}{32}[/tex]

Step-by-step explanation:

Rode here on the bus

Now you're one of us

It was magic hour

Counting motorbikes

On the turnpike

One of Eisenhower's

Live your life on a merry-go-round

Who starts a fire just to let it go out?

(dreams tonite lol)

Step-by-step explanation:

plz mark me as brainliest

[tex]3 {x}^{2} - xy - 4 {y}^{2} \\ = 3 {x}^{2} + 3xy - 4xy - 4 {y}^{2} \\ = 3x(x + y) - 4y(x + y) \\ = (3x - 4y)(x + y)[/tex]

Hope it helps

ray4918 here to help

Answer:

5(1/5^3) ≠ 5(5^3)

Step-by-step explanation:

5(1/5^3) = 5(5^3)

5/27 = 625

5(1/5^3) ≠ 5(5^3)

The sides aren't equal, so this equation is FALSE.

Answer:

Step-by-step explanation:

Short answer: No they are not the same.

5 * 1/5^3 = 1/5^2. One of the 5s in the denominator cancels out.

5^1 * 5^3 = 5^(1 + 3) = 5^4. Nothing cancels here. The powers add.

Answer:

66

Step-by-step explanation:

Answer:

The points all lie very close to the line of fit, and the

line is decreasing.

Step-by-step explanation:

Brainliest maybe

Answer: A.) The points all lie very close to the line of fit, and the line is decreasing.

Answer:

The answer to this question is C

[tex]y = \frac{3}{2} x + 7 \\ \\ y = \frac{1}{2}x + 1 [/tex]

Answer:

150y >=900

Step-by-step explanation:

next is six or more

Answer:

it's the third one. x=47/3

Step-by-step explanation:

if needed in decimal form: 15.666

mixed number form: 15 2/3

Answer:

about 83

Step-by-step explanation:

Answer:

B) She puts the flag in the window after the men have taken it down.

Step-by-step explanation:

Hope this helps! Pls give brainliest!

Answer:

She puts the flag in the window after the men have taken it down.