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
CaHeK987 [17]
3 years ago
7

If 5(3x-7)=20, then what is 6x-8 ?

Mathematics
1 answer:
Colt1911 [192]3 years ago
3 0
First solve for x in the first equation. So you'll have to substitute,
5(3x-7)=20
15x-35=20
Then add 35 to both sides.
15x=55
Divide 55 by 15.
So x = 3.66...
Then plug in 3.7 for x in 6x-8
6(3.7)-8
Its approximately 14.2
You might be interested in
A poll was taken to determine which candidate students were voting for in an upcoming class president election. Of the students
hram777 [196]

Answer:

Step-by-step explanation:

the way to find how many participanted in the class voted, you need to look at the percentages and the number of students that voted for Vicky.

50% of students voted for Vicky and the question later explained that the total of the 50% was 30 students. This mean we know half of the student that participated. To find the total amount of students to make 100%, you need to multiple 30 by 2. which is 60.

Now that we know there were 60 students in total, we can find how many participated by using Iverson's percentage.

this is the formula that can help with any percentage math problem:

The percentage of something ÷ 100% = the number you are looking for ÷ the total

in our case:

40÷100 = x (because it is the unknown term)÷60

from here you cross multiple getting

2400÷100x

which equals

24

now we have to add Vicky's and Iverson's voter

24 + 30= 54

60-54=6

6 students did not participate

8 0
3 years ago
after the outbreak of a mysterious disease, the average wait time at a hospital by 70%. Before the outbreak, the average wait ti
Juli2301 [7.4K]

Answer:

1.7m

Step-by-step explanation:

Given that 'm' was the waiting time before the outbreak

After the outbreak, waiting time increased by 70%.

This implies that :

70% of m increase

m + 70% of m

m + 70/100 of m

m + ( 70÷100 ) × m

m + 0.7m

= 1.7m

Step-by-step explanation:

6 0
3 years ago
Cynthia Besch wants to buy a rug for a room that is 23 ft wide and 33 ft long. She wants to leave a uniform strip of floor aroun
Debora [2.8K]

Answer:

Step-by-step explanation:

5 0
3 years ago
dominic has a block of clay that is 24.5 inches long, 12.5 inches wide, and 8 inches high. dominic will use the clay to make vas
exis [7]
The total volume of clay Dominic has is the volume of the block; length⋅width⋅height.  That's 24.5 ⋅ 12.5 ⋅ 8 = 2450 inches cubed.

We'll divide the total volume of clay Dominic has by the required clay per vase to find how many vases he can make: 2450 ÷ 50 = 49 vases.

Dominic can make a maximum of 49 vases.
6 0
3 years ago
3/5 is 30% of what number?
Daniel [21]
3/5 of what number =15
5 0
3 years ago
Other questions:
  • There are 527 students enrolled at school 11% are absent today how many students are absent​
    5·1 answer
  • Please I need help. I can’t figure these problems out.
    5·1 answer
  • A film shop carrying black and white film and color film has $4000 in inventory the profit on black and white film is 12% and th
    14·1 answer
  • Move the slider on the graph on the right to graph each function:
    9·2 answers
  • 2/3 7/8 What is closer to 3/4
    9·1 answer
  • I Need HelpAsap please I will mark you brainlist
    8·1 answer
  • The figure shows a carpeted room. How many square feet of the room are carpeted?
    8·2 answers
  • Which graph shows the solution to the system of linear inequalities? Y< 1/3x-1 y<1/3-3
    9·1 answer
  • How do you solve 135x42? (step by step please)
    11·1 answer
  • Consider triangle ABC with the measure of an angle B = 60゚ and sidelinks a equal 4 &c equal 5 what option listed is an expre
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!