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
juin [17]
3 years ago
7

If x=9 and y=−3, evaluate the following expression:7(2x−3y)​

Mathematics
2 answers:
LuckyWell [14K]3 years ago
7 0

Answer:

189

Step-by-step explanation:

You can replace the values of x with 9 and the values of y with (-3).

7(2x-3y) = 7(2 × 9 - 3 × -3)

             = 7(18 - -9)

             = 7(18+9)

             = 7 × 27

             = 189

Yuki888 [10]3 years ago
4 0
Your answer would be 189
You might be interested in
Please answer this and thank you<br><br> If DE=4x+10, EF=2-1, and DF=9x-15, find DF.
professor190 [17]
I hope that 2-1 means 21.

DE + EF = DF
4x + 10 + 21 = 9x - 15
4x + 31 = 9x - 15
31 = 9x - 4x - 15
31 = 5x - 15
46 = 5x
x = 9 1/5 = 9.2

You want 9x - 15
9*9.2 - 15
82.8 - 15
67.8 <<<<< answer. 
If I have given the wrong meaning to 2-1 (which could mean 1) leave another note and I will correct my work. 
8 0
3 years ago
Which of these statements best describes the relation shown in Item 1?
Misha Larkins [42]

Answer:

It is a many-to-one relation

Step-by-step explanation:

Given

See attachment for relation

Required

What type of function is it?

The relation can be represented as:

\left[\begin{array}{c}x\\ \\-5\\-2\\1\\5\end{array}\right]         \left[\begin{array}{c}y\\ \\10\\11\\4\\10\end{array}\right]

Where

x = domain and y = range

Notice that the range has an occurrence of 10 (twice)

i.e.

(x_1,y_1) = (-5,10) and (x_2,y_2) = (5,10)

In function and relations, when two different values in the domain point to the same value in the range implies that, <em>the relation is many to one.</em>

8 0
3 years ago
A box has a volume of 30 cubic cm. the box is filled with unit cubes, with no gaps or overlaps. each unit cube measures 1 cm in
aksik [14]

Answer:

C. 30.

Step-by-step explanation:

Each cube has a volume  of 1 * 1* 1 = 1 cu cm.

The answer is 30 unit cubes because 30 *1 = 30.

7 0
3 years ago
Please help I will give brainliest or thanks please help me
Dovator [93]
15 minutes= 2 problems
75 / 15 = 5
2 x 5 = 10 problems
7 0
3 years ago
Read 2 more answers
1. NBC: A jacket you like costs $64. You have a coupon for 20% off. How much will you pay for the jacket?​
Artemon [7]

Answer:

$51.2

Step-by-step explanation:

If you subtract 64 to 20% then you end up with $51.2

8 0
2 years ago
Other questions:
  • What is 657 in expanded form?
    13·2 answers
  • A picture is x+20 cm in width and 2x-10 cm in length. The frame is a
    8·1 answer
  • (03.01)
    5·2 answers
  • Choose the equation of the horizontal line that passes through the part point (1,-5)
    14·2 answers
  • Hannas school her to the book donation there are 150 students at her school and they Donated a total of b books Hannah do need i
    14·1 answer
  • How do u graph y=-4x+2 y=x-3
    12·1 answer
  • Lilly bottles 4 1/8 quarts of barbecue sauce. Then she bottles another 5 7/8 quarts of barbecue sauce. How many 1-cup servings o
    6·1 answer
  • The lifespans of meerkats in a particular zoo are normally distributed. The average meerkat lives 13.1 years; the
    7·2 answers
  • Please help me!! Thank youu
    8·2 answers
  • Marcelina uses a blend of white corn and yellow corn to make tortilla chips at her restaurant. She needs to buy 50kg of corn in
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!