Help please I’m so confused

B. 5y - 12 = 18

Did it in class

Answer:

[tex]\displaystyle 7x + 9y = 45[/tex]

Step-by-step explanation:

y = –⁷⁄₉x + 5

+ ⁷⁄₉x + ⁷⁄₉x

___________

⁷⁄₉x + y = 5 [We CANNOT leave the equation like this, so multiply by 9 to eradicate the fraction.]

9[⁷⁄₉x + y = 5]

[tex]\displaystyle 7x + 9y = 45[/tex]

I am joyous to assist you at any time.

Answer:

n = 3

Step-by-step explanation:

28/4 = 21/n

7 = 21/n

7/7 = 21/7

n = 3

For similar triangles ABC and DEF, the value of N=3.

Similarity of a triangle is the ratio of their corresponding sides or angles which are equal.

The given triangles are ABC and DEF,

Side AB = 21, BC = 28, DE = N and EF = 4.

Also, triangle ABC is similar to triangle DEF.

By similar triangle property,

AB/CD = DE/EF

21/28 = N/4

N = 21/7

N = 3

In the triangle DEF, side DE = 3.

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Answer:

15 ft

Step-by-step explanation:

10 + 5 = 15 ft

Answer:

Step-by-step explanation:

A system of equations can be written for the weights of the boxes based on the relationships given in the problem statement. One equation will be for the total weight of 1 large and 1 small box; the other will be for the total weight of 70 large and 60 small boxes.

Let L and S represent the weights of Large and Small boxes, respectively. The system of equations is ...

  L + S = 60 . . . . . . combined weight is 60 lbs

  70L +60S = 4000 . . . . weight of boxes in the truck

__

We can solve this by substituting for s in the second equation.

  70L +60(60 -L) = 4000

  10L = 400 . . . . . . . . . subtract 3600, simplify

  L = 40

  S = 60 -L = 20

A large box weighs 40 pounds; a small box weighs 20 pounds.

68%

Hi there !

275 ________ 100%

187 __________ x %

x = 187×100/275

= 18700/275

= 68%

Good luck !

Answer:

1/3+1/8+2/6=19/24-5=1/24

From the given parameters, the fraction of time spent doing other things is 5/24

The given parameters are:

Sleep = 1/3

Homework = 1/8

Playing = 2/6

Doing other things = 5 hours

There are 24 hours in a day.

So, the fraction of time spent doing other things is the amount of time doing other things divided by the number of hours in a day

So, we have:

Time = 5/24

Hence, the fraction of time spent doing other things is 5/24

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u = 1

Hi there !

3u + 4 = 7

3u = 7 - 4

3u = 3

u = 3 : 3

u = 1

Good luck !

Answer:

-105

Step-by-step explanation:

This means their measures add to 90 degrees, so:

(130+x)+(170+x)=90

300+2x=90

2x=-210

x=-105

The value of x in the expression for the measure of the complementary angle is -105.

Complementary angles are simply angles that sum up to 90 degrees.

Given the parameter:

Angles A and B are complementary.

Measure of angle A = 130 + x

Measure of angle B = 170 + x

Value of x =?

Since angles A and B are complementary, their sum should be equal to 90 degrees.

Hence:

Angles A + Angle B = 90

Plug in the expressions:

(130 + x) + (170 + x) = 90

Combine like terms:

x + x + 130 + 170

2x + 300 = 90

Subtract 300 from both sides:

2x + 300 - 300 = 90 - 300

2x = -210

x = -210/2

x = -105

Therefore, x has a value of -105.

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Answer:

Step-by-step explanation:

2.6 feet into parts =

1 in

1in

0.6in

1in = 3.5 ft

3.5+3.5=7

0.6x3.5=

6x35=210

add the points,

2.10 or 2.1

0.6=2.1

7+2.1=9.1

so hence, your answer is 9.1 feet

Thanks!

You have to have 2 or more smiles so that you can share them to another person who doesn't have one.

:D

The total width of the craft project is an illustration of products

The total width is 77.4 inches

The given parameters are:

Number of pieces = 12

Width of each piece = 6.45

The total width is the product of the number of pieces and the width of each piece.

So, we have:

Total = 12 * 6.45 in

Evaluate

Total = 77.4 in

Hence, the total width is 77.4 inches

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Answer:

yes

Step-by-step explanation:

Answer:

Aah I don't like it but many people love it. It really depends on what kind of person you are

Hey there!

a) --›initial number = 3750

--›rate = 2.5%

let y be the population t years after 2021

So, y = 3750(1+2.15) ^ t

=> 3750 × 1.0215 ^ t

b) In 2036,

=> t = 2036 - 2021

=> 15

Substitute into the first value

=> 3750 × 1.0215 ^ t

=> 3750 × 1.0215 ^ 15

=> 5159.

Therefore, the population in 2036 would be 5159

Answer: Learn

Step-by-step explanation:

Me neither, stop cheating and pay attention in class.

Answer:

75 degrees and 105 degrees.

Step-by-step explanation:

So this is a transversal. We can use a couple different methods to solve this. We can use many different theorems to solve this problem. So we know that m<2=m<4 because of vertical angles, we also know that m<4=m<6 because of alternate interior angles. We also know that m<6=m<8 because of vertical angles. So we know that m<2=m<4=m<6=<8. In a transversal, there are only two different measurements. And those two different measurements add up to 180 degrees. So since once of the measurements is 75, that means the other measurement has to be 105 degrees. Also, we see that m<4 and m<5 are same side interior angles and according to that theorem, they have to equal up to 180 degrees.

Answer:

Ask about the usage of euler's number in real world situations.

Ask about the usage of "i" for higher levels of math.

Ask about area under the slope.

Come up with some more stuff you are genuinely interested.

Step-by-step explanation:

Answer:

Write a composition in French about a market day

Answer:

your answer is going to be 15.

lets break this down

|3−5|+13

=|−2|+13

=2+13

=15

Answer:

5.25

Step-by-step explanation:

answer:

[tex]\sf \dfrac{17}{24}[/tex]

step-by-step explanation:

[tex]\sf \dfrac{3}{8} +\dfrac{1}{3}[/tex]

the largest multiple of 8 and 3 is 24, make the denominator same

[tex]\sf \dfrac{3(3)}{8} +\dfrac{1(8)}{3}[/tex]

expand

[tex]\sf \dfrac{9}{24} +\dfrac{8}{24}[/tex]

simplify, join both fractions

[tex]\sf \dfrac{17}{24}[/tex]

Answer:

[tex]\dfrac{17}{24}[/tex]

Step-by-step explanation:

Convert the fractions so that their denominators are the same, then add:

[tex]\dfrac38+\dfrac13=\dfrac{3 \times 3}{8 \times 3}+\dfrac{1 \times 8}{3\times 8}=\dfrac{9}{24}+\dfrac{8}{24}=\dfrac{17}{24}[/tex]

Answer:

1.7 cups

Step-by-step explanation:

If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.

Answer:

the answer is d) y = cos(x - Pi) - 2

Step-by-step explanation:

you can see that on the graph that os must be -2.. so you can move it for 2 up

than you have to take in count that (x - Pi) so you move your graph for Pi to the left

and than you have to recognize the function.. if it goes through 0 is sin if not is cos

The equation for the graph y = cos(x - Pi) - 2.

You can see that on the graph that os must be -2.

So you can move it for 2 up.

A graph is a mathematical diagram that shows the relationship between two or more sets of numbers or measurements.

Then you have to take into count that (x - Pi).

So you move your graph for Pi to the left

Then you have to recognize the function.

If it goes through 0 is a sin if not is cos.

The equation for the graph y = cos(x - Pi) - 2.

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Answer:

n=9

Step-by-step explanation:

Rewrite the equation as 0.5n=4.5.

0.5n=4.5

Divide each term by 0.5 and simplify.

n=9

Answer:

3.361111098 lbs (im not sure where your teacher wants you to round to)

Step-by-step explanation:

I believe that says 20 and 1/6 pound, so I'll do the equation according to that.

if it weighs 1/6 on the moon what it does on earth, multiply the earths weight of it by 1/6

Answer:

The fraction of roses that she has given away in the simplest form is

4/16=1/4

Answer:

three tenths

Step-by-step explanation:

It says Lakesha gave her 3 tenths of her cookies to Bailey and 5 to helen so you can't reduce that so it would have to be 8/10s

Answer:

pls shorten your question for better answers

Step-by-step explanation:

<3 follow

Answer:

732

Step-by-step explanation:

183 x 4