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
geniusboy [140]
3 years ago
6

Can you help me on these three

Mathematics
1 answer:
V125BC [204]3 years ago
4 0
7. Let x be the money she began with, then
1/3 (x - 4/5 x) = 15
1/3 (1/5 x) = 15
1/15 x = 15
x = 15 * 15 = $225
Therefore, she started with $225

Let x be the number of students surveyed, then
1/2(x - 1/3x - 1/6x) = 9
1/2(1/2x) = 9
1/4x = 9
x = 4 * 9 = 36
Therefore, the number of students surveyed is 36.
You might be interested in
19 6/7 divided by 4 1/8
anygoal [31]
<span>4</span>\frac{188}{231}
Hope this helps!
7 0
3 years ago
Shirley is decorating the gym for a party. She has 5 rolls of blue streamer and 9 rolls of green streamer. If each roll of blue
sp2606 [1]

Answer:

987 ft.

Step-by-step explanation:

We can solve this with an equation.

Since she has 5 rolls of 99 feet long blue streamer, then she has 5*99=495 feet of blue streamer

Since she has 9 rolls of 88 feet long blue green, then she has 9*88=792 feet of blue green

To find the total, we can add them up and get 495+792=987

8 0
2 years ago
Peony mixes red paint and white paint in the ratio 1:3 She uses four tins of red paint Work out the total number of tins of pain
blsea [12.9K]

Answer:

16

Step-by-step explanation:

4x3=12 tins of white paint

12+4=16 total tins

5 0
3 years ago
Evaluate f(x)=0.5^-2​
Ganezh [65]

Answer:

f=1/25x

f=4/5f (simplified)

x=1/25f

x=4/5x (simplified)

Step-by-step explanation:

To solve for f.

fx=5−2

Step 1: Divide both sides by x.

fx/x=1/25/x

f=1/25x

To solve for x

fx=5−2

Step 1: Divide both sides by f.

fx/f=1/25/f

x=1/25f

7 0
3 years ago
Solve 5b +12c =9 for b
Natali5045456 [20]
5b +12c = 9
5b = 9 -12x
B= (9-12x)/5
6 0
3 years ago
Read 2 more answers
Other questions:
  • Wallpaper was applied to one rectangular wall of a large room. The dimensions of the wall are shown below. If the total cost of
    7·2 answers
  • What is equivalent to 4/21
    7·2 answers
  • If the perimeter of a regular hexagon is 42 cm then each side is
    13·2 answers
  • Please answer a and c
    14·1 answer
  • 15/42 in simplest form.
    9·1 answer
  • Find x step by step (10 points)
    5·2 answers
  • If these two triangles are similar, find the vale of x.
    5·2 answers
  • Solve<br> 5 log2 (n – 4) = 20
    5·1 answer
  • Please help me please
    7·1 answer
  • it took 3/4 of a minute to fill a barrel 1/6 full of water if the water continues at the same rate, how long, in minutes will it
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!