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
schepotkina [342]
3 years ago
8

Can someone help me I give you 10 points

Mathematics
1 answer:
natka813 [3]3 years ago
7 0

Answer:

A:40%

B:7.8

Step-by-step explanation:

Using a proportion , you can solve for the bottom side.

13/19.5 = 5.2/x

multiply 19.5 and 5.2 and rewrite the equation

101.4=13x

x=7.8

To find the scale, divide 5.2 by 13

5.2/13=0.4

Double check by dividing 7.8 by 19.5

7.8/19.5=0.4

0.4=40%

You might be interested in
1. You can buy a 6-hour phone card for $5.00, but the fine print says that each minute actually costs you 1.5 minutes of time. W
Vilka [71]
Divide 5.00 by 1.5 and you get (it's pretty long) 3.3333333333333333333333333333333

7 0
3 years ago
Bill $42 , tax 9% , tip 18%
STatiana [176]

Answer:

Tax 3.78 $ and tip 7.56 $

Step-by-step explanation:

42*0.09 = 3.78

42*0.18 = 7.56

8 0
2 years ago
Please help. Will give brainliest to correct answer.
mr Goodwill [35]

Answer:

Step-by-step explanation:

B

3 0
3 years ago
Read 2 more answers
Solve for x in the given interval.<br><br> sec x= -2√3/3, for π/2 ≤x≤π
drek231 [11]

Answer:

b. x=\frac{5\pi}{6}

Step-by-step explanation:

The given function is

\sec x=-\frac{2\sqrt{3} }{3},\:\:for\:\:\frac{\pi}{2}\le x \le \pi

Recall that the reciprocal of the cosine ratio is the secant ratio.

This implies that;

\frac{1}{\cos x}=-\frac{2\sqrt{3} }{3}

\Rightarrow \cos x=-\frac{3}{2\sqrt{3} }

\Rightarrow \cos x=-\frac{\sqrt{3}}{2}

We take the inverse cosine of both sides to obtain;

x=\cos^{-1}(-\frac{\sqrt{3}}{2})

x=\frac{5\pi}{6}

4 0
3 years ago
Simplify. <img src="https://tex.z-dn.net/?f=%5Csqrt%7B15%7D" id="TexFormula1" title="\sqrt{15}" alt="\sqrt{15}" align="absmiddle
jolli1 [7]

Answer:

I think its 15.58

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • (-x to the power of 10) to the power of 2​
    7·1 answer
  • HELP PLEASE ITS DUE SOON!!
    13·1 answer
  • an adult ticket cost 20 dollars a piece for2 adults and 10 a piece for 4 children how much will cost for everyone
    7·2 answers
  • Oleta has five times as many pennies as quarters. Altogether she has $1.80 how many of each coin does she have
    15·1 answer
  • Does the equation y=4x+9 represent a direct variation
    6·1 answer
  • = [70 + (-30)] + [2 + (-9)] + [0.3 + (-0.10]
    11·2 answers
  • If you answer these 2 questions then u like anime and i send u some pics! :)
    15·1 answer
  • In the room there are 5 big boxes. In each box there are 3 smaller boxes. In each of these small boxes the are 4 smaller boxes.H
    11·1 answer
  • What is the approximate value for<br> 683/22<br> A. 20<br> B. 21<br> C. 25<br> D. 31
    10·2 answers
  • Resolve the following vectors into components:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!