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2 years ago

5

Liz is taking guitar lessons and practices every night. Yesterday, she played a total of 40 chords in 8 minutes. Today she will

play chords for 5 minutes. If she plays at the same rate, how many chords will Liz play today?

1 answer:

il63 [147K]2 years ago

6 0

Answer:the answer is 25

Step-by-step explanation:

40 divided by 8 = (chords played per minute)

5 times (chords played per minute and you get your answer

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Please help on these two

jeyben [28]

Answer:

For your first problem you want to see what all the sides would equal

You would have to combine them all into one big equation

5x-7+3x+1+4x=30 (now you want to combine like terms)

12x-7+1=30 (combined the x's together)

12x-6=30 (added -7 and 1)

12x=36 (added 6 to each side)

x=3 (divided 12 to each side)

Now you wanna plug 4 in for x for each side to find out the largest to smallest

AB=5(3)-7= 8

BC=3(3)+1= 10

AC=4(3)= 12

So in order from smallest to largest would be angle C, B, A because

Angle C is the smallest angle because the sides AC and BC are the longest so they form the smallest angle

Then it would be angle A being the largest because the smallest sides in length AB and BC make up the biggest angle

The next problem would be that in order for it to have to be a triangle the two smallest sides needs to add up higher than the third side so

11, 11, 24, 11+11=22, which is less than 24 so not this one

18,12,9, 9+12=21 which is greater that 18 so this one would be a triangle

9,10,19, 9+10=19 which 19 isn't greater than 19 so this one is not a triangle

4,7,23, 4+7=11 which is less than 23, so this one is also not a triangle

So your answer would be 18cm,12cm,9cm

8 0

3 years ago

In how many ways can a class of 10 students be assigned 1 a, 2 b;s

nalin [4]

2.b..........................

6 0

3 years ago

Read 2 more answers

I really need help with this question. I have attached two screenshots, the first is the question and the second one is the opti

Sliva [168]

Using proportions, it is found that the coordinates of point B are given as follows:

A. (1.6, 0).

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

Point B is 3/4 of the way from AB to AC, hence:

$B - A = \frac{3}{4}(C - A)$

The points are:

A(-2,-3).

B(x,y).

C(3,1).

Then, to find the x-coordinate:

$x + 2 = \frac{3}{4}(3 + 2)$

x + 2 = 3.6.

x = 1.6.

For the y-coordinate:

$y + 3 = \frac{3}{4}(1 + 3)$

y + 3 = 3

y = 0.

Hence option A is correct.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

5 0

2 years ago

Makayla borrows $15200. Some is from her friend at 5% annual interest, 2 times as much as that from her bank at 8% , and the rem

GalinKa [24]

Answer:

Amount borrowed from friend = 4000

From Bank = 8000

From insurance = 3200

Step-by-step explanation:

Given that:

Amount borrowed = $15200

Let amount borrowed from friend = x

x at 5% = 0.05x

From Bank = 2x at 8% = 0.08*2x = 0.16x

From insurance = 15200 - (x + 2x) at 4%

From insurance = 15200 - 3x at 4% ; (15200 - 3x)* 0.04 = 608 - 0.12x

Interest paid in first year = $968

Simple interest = principal * rate * time

968 =

968 = (0.05x + 0.16x + 608 - 0.12x)

968 - 608 = 0.05x + 0.16x - 0.12x

360 = 0.09x

x = 360 / 0.09

x = 4000

Hence,

Amount borrowed from friend = 4000

From Bank = 2x = 4000 * 2 = 8000

From insurance = 15200 - (4000 + 8000) = 3200

4 0

3 years ago

What is the independent variable of an equation?

wolverine [178]

X is. Y is the dependent variable cause most of the time u plug in x.

6 0

3 years ago