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
Alborosie
3 years ago
15

Need help w this thanks

Mathematics
1 answer:
julsineya [31]3 years ago
3 0

Answer:

a

Step-by-step explanation:

You might be interested in
How do you solve 26/57= 849/5x
sergeinik [125]
If you would like to solve 26/57 = 849/5x, you can do this using the following steps:

<span>26/57 = 849/5x          /*(5x)
</span>26/57 * (5x) = 849     /*57
26 * 5x = 849 * 57    /26
5x = 48393/26        /5
x = <span>48393/(26*5)
x = 372.25

The correct result would be </span><span>372.25.</span><span>
</span>
8 0
3 years ago
Find the equation of the circle that has a diameter with endpoints (7,3) and (7,-5)
muminat

Answer:

(x-7)² + (y+1)² = 4² or (x-7)² + (y+1)² =16

Step-by-step explanation:

1) coordinates of the center

x0=(x1+x2)/2=(7+7)/2=7

y0=(y1+y1)/2=(3-5)/2 = -1

(7, -1) - coordinates of the center

2) radius of the circle

length of the diameter =√((x2-x1)²+(y2-y1)²)=√((7-7)²+(-5-3)²)=√(8)²= 8

r = length of the radius = length of the diameter / 2 = 8/2 = 4

3) the equation of the circle

(x-x0)² + (y-y0)²= r²

(x-7)² + (y+1)² = 4²=16

3 0
4 years ago
A grocer wants to mix two kinds of candy. One kind sells for $1.15 per pound, and the other sells for
scZoUnD [109]

Hey there!

This grocer is mixing two kinds of coffee. I always love the smell of coffee!

We will say that x sells for $1.15 per pound and y sells for $2.75 per pound.

Altogether there are 24 pounds of coffee he is selling.

The algebraic equation would be x + y = 24

At $1.30 per pound, he will make 24 * $1.30 = $31.2

So, how many of the x and y kinds of coffee should he use to make the $1.30 per pound mixture which will net him $31.2?

The algebraic equation would be 1.15x + 2.75y = 31.2

We now have two equations :

x+y = 24

1.15x + 2.75y = 31.2

Substituting x= 24 -y in the second equation gives us

1.15(24-y) + 2.75y = 31.2

27.6 - 1.15y + 2.75y = 31.2

27.6 + 1.6y = 31.2

1.6y = 31.2 - 27.6

0.3y= 3.6

y= 2.25

x + y = 24

x + 2.25 = 24

x = 24 -2.25

x = 21.75

If y=2.25, then x= 21.75 as well.

So, he will use 21.75 pounds of the $1.15 per/lb one and another 2.25 pounds of the $2.75per/lb one.

~Done~

6 0
2 years ago
Answer for 17 please???????????
uranmaximum [27]

The amount of degrees in a polygon: 360

In a pentagon: 360 / 5 = 72

9x - 18 = 72     Add 18 to both sides

9x = 90               Divide by 9

x = 10

7 0
3 years ago
In a study of the relationship for senior citizens between physical activity and frequency of colds, participants were asked to
masha68 [24]

Answer:

Difference between Observational and Experimental Data

The data collected in the study is observational data.

Step-by-step explanation:

In an experimental study, the data collected is divided into two groups.  One group is the control group.  The other group is the treatment group (also known as the experimental group).  Data is gathered about the groups in order to compare their different outcomes and to draw conclusions if there is any causality based on the two variables.  With observational data, the researcher is interested in observing the variables to determine if there is any correlation.

8 0
3 years ago
Other questions:
  • New York received 40 centimeters of snow in 20 hours. How many centimeters fell per hour?
    9·1 answer
  • The price of a calculator has decreased from $200 to $150. What is the percentage of decrease?
    9·2 answers
  • Which one does not belong ?<br>1/20 _20/25 _2/3_ 5/4<br>And why is the answer correct?.​
    11·1 answer
  • Simplify root45 - root20 +4root5
    7·1 answer
  • Which point is the incenter of ​ △JKL ​ ?
    8·2 answers
  • Show work for 125 divided by 7.75
    10·1 answer
  • Accuracy vs precision
    9·1 answer
  • bank offers two interest account plans. Plan A gives you 6% interest compounded annually. Plan B gives you 13% annual simple int
    10·1 answer
  • Can you please give me a step by step? thank you!
    10·2 answers
  • Multiply to find each product.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!