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
Nady [450]
3 years ago
7

Suppose y varies directly as x. If x = 15 when y = 12, find x when y = 21.

Mathematics
1 answer:
Pachacha [2.7K]3 years ago
5 0

Answer:

x=26.25

Step-by-step explanation:

Let y=kx

12=15k

k=k=\frac{12}{15} \\again 21=\frac{12}{15} *x\\x=21*\frac{15}{12} =\frac{105}{4} =26.25

You might be interested in
Pls answer This question I don’t know it
NNADVOKAT [17]
A - 32,500
B- 0.00604
C-2.4x10 to the power of 6
D-1.47x10 to the power of -3
4 0
3 years ago
Read 2 more answers
Hepl will give branliest​
lora16 [44]

Answer:

1

I THINK I GOT IT OMG THAT WAS SO HARD

4 0
3 years ago
Read 2 more answers
About what percent of the data lie between 53 and 62?
sesenic [268]
I believe it is 58 for the answer
0 0
4 years ago
an online sporting goods store charges $12 for a pair of athletic socks. shipping is $2 per order. write an expression that hana
djverab [1.8K]
For one pair of socks you pay $12 plus $2 shipping.

Let's use x as the variable for how many pairs of socks someone might buy.

If someone buys 5 pairs of socks, they will pay $62. $12 * 5 + $2

So, we can write the expression as 12x + 2.
6 0
3 years ago
How to find the missing angle of a triangle using trig when you only know 1?
Sedbober [7]
If you have

2 KNOWN sides & 1 Angle ;
Use Cosine Rule

If you have 3 KNOWN sides,
Also Cosine Rule

If you have

2 KNOWN angles & 1 side,
Use SINE rule

If it's a right-angled triangle, use SOH CAH TOA

Hopefully this helps





3 0
3 years ago
Other questions:
  • Eight members of a chess club are having a tournament. In the first round every player will play a chess game against every othe
    9·1 answer
  • He radius of a circle is 2 kilometers. What is the area of a sector bounded by a 45° arc?
    12·1 answer
  • For what value of x does 3^4 x = 27^x - 3? a.–9 b.–3 c.3 d.9
    15·2 answers
  • What is an equation of the line that passes through the point (2,-5) and is parallel
    10·1 answer
  • Gas is escaping from a spherical balloon at the rate of 12 ft3/hr. At what rate (in feet per hour) is the radius of the balloon
    11·1 answer
  • Petra jogs 5 miles in 40 minutes. At this rate, how long would it take her to jog 13 miles?​
    11·2 answers
  • Sphere A has a radius of 24 centimeters, and sphere B has a diameter of 42 centimeters. The radius of sphere A is
    9·1 answer
  • I Need Help With This, It is My Last question
    6·2 answers
  • Pls help for math class
    6·2 answers
  • Can someone please help me
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!