1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
shtirl [24]
2 years ago
15

What is the value of the expression (30 - 6b) when b is 3.5

Mathematics
1 answer:
geniusboy [140]2 years ago
6 0

Answer:

9

Step-by-step explanation:

30 - 6(3.5)

30 - 21

9

You might be interested in
Question 10 (5 points)
kakasveta [241]

Answer:

Hey there!

Slope: 7-3/1-(-1), which is equal to 4/2, or 2.

Point slope: y-7=2(x-1)

So choice B is correct.

Let me know if this helps , or if you have any more questions :)

7 0
3 years ago
Find the slope of the line that goes through the given points (8,5) (6,7)
vazorg [7]
To find the slope of a line that goes through given points with known coordinates, you divide the subtraction of the y of the second point minus the y of the first point, by the subtraction of the x of the second point minus the x of the first point:
m = (yB-yA) / (xB-xA)

Let A(8,5) and B(6,7).
With yB = 7; yA = 5; xB = 6; xA = 8
m = (7-5) / (6-8)
m = 2/-2
m = -1

So the slope of the line that goes through the given points (8,5) and (6,7) is m = -1.

I've added a pic of the line with both points under the answer.

Hope this Helps! :)

4 0
2 years ago
NEED HELP WITH 13 a-b!!!! PLEASE HELP!!!!!!!
sergij07 [2.7K]

Answer:

a - 6%

b - $7.50

Step-by-step explanation:

The answer for a

the only items that had sales tax were $3.00 and $0.50. The total tax for the both was $0.21 so you can find what percent 0.21 is of 3.00 + 0.50 o 3.50. Do this by dividing the percent you are looking for, 0.21, by what it is the percent of 3.50. 0.21 / 3.50 = 0.06. then you multiply the number you got, in this case 0.06 by 100 to find the percentage so it is 6%

The answer for b

Here you can just take the subtotal, $13.00, and subtract all the other prices and you will be left with the price of the top. 13.00 - 3.00 - 2.00 - 0.50 = 7.50. So the answer is $7.50

8 0
2 years ago
Which of the following are solutions to the equation below? check all that apply. 9x^2-6x+1=7
Evgesh-ka [11]
The answer is C and D

First we must make one side of the equation zero, so we subtract 7 on both sides of the equation, making the equation <span>9x^2 - 6x - 6 = 0 

Then we will use the quadratic formula to find the answers.

</span>using the Quadratic Formula where:
a = 9, b = -6, and c = -6

and the formula is 6 +- \sqrt{6^2 - 4(9)(-6)} / 2(9)
6 0
3 years ago
Read 2 more answers
Please help me with this math!
STALIN [3.7K]
1. Alternate exterior angles

So, C

2.
180 = 76 + 2x
104 = 2x
52 = x

So, B

4.

4a. No
4b. Yes
4c. No
4d. Yes

5.
180 = 35 + 35 + 2x
180 = 70 + 2x
110 = 2x
55 = x

So, C.

7.

12/8 = 30/y

Cross multiply

12y = 240
y = 20

So, C

8. Alternate interior angles

So, A

9.

A C and D
6 0
3 years ago
Read 2 more answers
Other questions:
  • Mr. Schwartz builds toy cars. He begins the week with a supply of 85 wheels, and uses 4 wheels for each car he builds. Mr. Schwa
    6·1 answer
  • 100 POINTS!!!<br> See picture for math problem, please show work.
    14·2 answers
  • Im in geometry and i legit have no idea how to do this help please lol
    5·1 answer
  • Write an equation for the graphed line in......please help.
    9·1 answer
  • true or false if you have poor credit card, the company will conduct a history check of your assests ,religion and nationality ?
    11·2 answers
  • You invest $2,000 in an account that has an annual interest rate of 3.2%, compounded annually. How much money will be in the acc
    6·1 answer
  • What is the coefficient in this problem -4x+36=
    6·1 answer
  • If you invest $7000 in an account that pays 6% interest compounded annually, what is the total amount of money that you would ha
    9·1 answer
  • For the following right triangle, find the side length : Round your answer to the nearest hundredth.
    11·1 answer
  • What's 1/10 of 4 meters<br>​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!