Mathematics College

Which of these expressions equal 15 when x=1/2 and y=3? Circle all that apply. Please help with this my teacher need me to work out xy+3 1/2+20x Btw guys 3 1/2 are mixed numbers if your wondering

Answers

Answer 1

Answer:

Step-by-step explanation:

First you would replace the x and y's with 1/2 and 3.

So it would look like: (1/2) (3) + 3 1/2 + 20 (1/2)

Next, you go by PEMDAS (parenthesis, exponents, multiplications, division, addition, subtraction)

So you would first multiply and the parenthesis that I added mean multiplication.

1.5 + 3.5 + 10

So then all that is left to do is add because I multiplied everything out.

So it is 5 + 10 which is 15

Related Questions

The museum of natural history has an auditorium that can seat 200 people. A class of 45 students is seated in the auditorium for a lecture. What decimal represents the portion of the seats in the auditorium that are empty? Please help FAST!

Answers

Answer:

.225

Step-by-step explanation:

45/200

Evaluate x + y , for x = 8 and y = -15
A. 7
B. 23 15 POINTS!
C. -7
D. -23

Answers

Answer:

-7

Explanation:

-15-8 = -7

You just need to bring over the negative to the answer but other than that subtract . Hope this explanation helps. Would appreciate brainliest

1/2x(6x1x7)+11 show how to solve this problem

Answers

Answer:

Step-by-step explanation:

first multiply 6×1.

1/2×(6×7)+11

Then multiply 6×7

1/2×42+11

Third you multiply 1/2 and 42

1/2×42= 21

finally you add together 21+11

21+11= 32

pls help a.s.a.p!!!!!

Answers

Answer:

The correct answers are A and E

Step-by-step explanation:

A company makes cylindrical candles by melting wax and putting into 3 inch diameter cylindrical jars one block of candlewax with a volume of 360 in.³ is used to make a box of 10 identical candles

Answers

I believe the answer is 1in

Answer: I said 1 inch. I am not 100% sure.

Step-by-step explanation:

Here is a rate: 12 feet in 3 hours.
Find the unit rate:
feet per hour

Answers

Answer:

Step-by-step explanation:

12 feet divided by 3 hours is 4

Answer:

4 feet per hour

Step-by-step explanation:

12 feet in 3 hours

12/3 = 4

4 feet in 1 hour

Hello! :)
Please help me solve this + explain your answer :)

I will indeed give you Brainlst <3

Answers

The answer is decreasing and linear.Therefore B.Please mark me brainliest im 100% sure it’s the right answer.

Need help solving this equation

Answers

The answer is to your equation is 4

Which fraction is equal to 30%?
A.
30
100
B.
100
300
C.
100
30
D.
3.0
100

Answers

Answer:

A. 30/100

Step-by-step explanation:

All you have to do is divide the numerator by the denominator and then multiply that result with 100 like so:

(Numerator/Denominator)*100

When you enter 30/100 into the above formula, you get (30/100)*100 which calculates to:

30%

Good Luck!

Answer:

1. 30/100

Step-by-step explanation:

Convert fraction (ratio) 30 / 100 Answer: 30%

30 POINTS!!!!!!!!!!!!!!!!!!!! HELP PLZ
A scatter plot is shown below:

A graph shows numbers from 0 to 10 on the x axis at increments of 1 and the numbers 0 to 15 on the y axis at increments of 1. The ordered pairs 0, 14 and 1, 11 and 2, 9 and 3, 10 and 4, 7 and 5, 7 and 6, 5 and 7, 5 and 8, 3 and 9, 1 and 10, 0 are shown on the graph.

Which two ordered pairs can be joined to best draw the line of best fit for this scatter plot?

(4, 15) and (10, 7)
(1, 6) and (6, 0)
(0, 13) and (10, 11)
(0, 13) and (10, 0)

Answers

Answer:

Step-by-step explanation:

(0, 13) and (10,11)

Sean places 10 tomato plants in rows. All rows contain the same number of plants. There are between 3 and 8 plants in each row. How many plants are in each row

Answers

Answer:

240

Step-by-step explanation:

so what is 3*8 and then what ever you get you multiply by 10

Hsvdsnegskehemwuenehee e. Tomato bsvdjsvejdvdos

Ed spent 25% of his savings on lunch, which cost $5.25. How much did he have in savings before lunch?

Answers

Step-by-step explanation:

I think 21 dollars is the answer

Find the value of x in the triangle shown below 9 12

Answers

show a picture of the triangle

Find the missing angles.

Answers

Answer:

w=30.5 y=29

Step-by-step explanation:

2w=61 so w=30.5

61+y=90 so y=29

Yes what the person above me said is correct I believe

Explanation

what is the y-intercept of the following equation

Answers

this is the y intercept! glad I can help :)

Please help me answer this :)
Explain your answer

Will give brainiest

Answers

Answer:

d. 770

Step-by-step explanation:

35 gallons per min

after 12 mins there is 350 gallons of water

35 x 12 = 420

how much water was in the tank BEFORE the valve was opened

350 + 420 = 770

3x+y=10
Which are solutions of the linear equation select all that apply

(1,6)
(2,4)
(3,1)
(4,-1)
(5,-5)

Answers

The only answer is (2,4)

PLSSSSSSSSSSSSSSS HELP ME I WILL GIVE BRAINIEST

Answers

|7.25| = 7.25

Absolute value numbers will always be positive numbers

Answer:

The answer is A

Step-by-step explanation:

Approximately 4 out of 5 students in Mrs.
Haynes 7th grade math class have cell
phones. If there are 365 students in the 7th
grade, how many would you expect to have
a cell phone?

Answers

Answer:

292

Step-by-step explanation:

take 365x 4/5=292.........

The number of students having a cell phone if Approximately 4 out of 5 students in Mrs. Haynes 7th grade math class have cell phones, and there are 365 students in the 7th, is 292.

What is multiplication?

The fundamental concept of making the same number of additions repeatedly is represented by the action of multiplication.

The results of multiplying two or more integers are known as the products, and the factors that are used in the multiplication are referred to as the factors.

Given:

Approximately 4 out of 5 students in Mrs. Haynes 7th grade math class have cell phones, and there are 365 students in the 7th,

Calculate the number of students having a cell phone as shown below,

The number of students having a cell phone = 4 / 5 of 365

The number of students having a cell phone = 4 / 5 × 365

The number of students having a cell phone = 4 × 73

The number of students having a cell phone = 292

Thus, The number of students having a cell phone is 292.

To know more about multiplication:

https://brainly.com/question/1135170

#SPJ1

(can u guys help me PLSSSSS ) A company sets sales goals for employees each month.

A: At her current pace, how many items will Kristina sell in 28 days?

B:Is she on track to meet the goal? Explain

Answers

A. Kristina will sell 294 items in 28 days if she stays on her current pace.
B. She is not on track to meet the goal. By doing the math she would only sell around 294 items by day 28 when she needs to sell around 400 to reach her goal. if she keeps this pace she won’t reach that goal unless she is able to bump up her weekly count by 2-5 items then she can either hit the goal or go over.

Solve for x.
-1+4x5= 3

Answers

Answer:

[tex]x = 0.2 \: or \: \frac{1}{5} [/tex]

Step-by-step explanation:

[tex] - 1 + 4x.5 = 3[/tex]

[tex] = > 20x - 1 = 3[/tex]

[tex] = > 20x = 3 + 1 = 4[/tex]

[tex] = > x = \frac{4}{20} = \frac{1}{5} = 0.2[/tex]

help please, don’t guess or don’t answer if you don’t know it

Answers

the answer to this is (-3,-5)

Can y’all plz help me

Answers

Answer:

D. 10

Step-by-step explanation:

Assuming that <COA is a right angle, we can say that the two given angles are complementary

complementary angles are angles that add up to 90 degrees

this means we can create this equation: 3x + 46 + 14 = 90

so subtract 46 and 14 from 90: 3x = 30

divide both sides by 3: x = 10

Answer:

I think that it is letter D

Step-by-step explanation:

sorry if im wrong. but i hope this helps! :)

5 star rating help quick

Answers

Answer:

i think b

Step-by-step explanation:

Answer:

Step-by-step explanation:

It is the only one with the coordinates (1,15) (3,25) (5,35) (7,45)

which expressions are equivalent to 3 (3P+3 - 3P-5) ? choose ALL that apply.

a. p - 2
b. p - 6
c. 3(1/3p-2)
d. 3(p-2)
e. 3(1/3p+3-5)
f. 3(1/3p-8)

Answers

Answer: The correct one is 3 (1/3p+3-5), p-6, 3(1/3p-2)

Step-by-step explanation: I just did it lol

After spending $19 dollars, Issac had twice as much money as Lara.
If Lara had $27, how much money did Issac have at first?

Answers

Answer:

Step-by-step explanation:

yes it is 73dddfmsmxk

Need help !! Due today

Answers

Answer: all my caculations are leading me to B

Answer:

I think its either C or D. Hope this helps, give brainliest if correct!

3.2 - 5.1n - 3n + 5= n +8.2 can someone tell me what goes in the blank

Answers

The answer for (n) is 0

A drawing has a scale of 1 mm: 20 cm. What
is the scale factor of the drawing?

Answers

The scale factor of the drawing is 200.

Scale Factor of a Drawing

The first step to take when looking for the scale factor of a drawing is to ensure both measurements are on the same unit.

Given a scale for a drawing to be: 1 mm: 20 cm

1 cm = 10 m

Therefore:

20 cm = 200 mm

Scale factor = 200/1 = 200.

Therefore, the scale factor of the drawing is 200.

Learn more about scale factor on:

https://brainly.com/question/2826496

Which is the percent for 1.67

Answers

The percent is 167% have a good day

Answer:

167%

i thank that is the anserr.

Step-by-step explanation:

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