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
kirill115 [55]
3 years ago
12

1. 5% of $30 2. 15% of $70 3. 0.4% of $100 SHow your steps and working

Mathematics
2 answers:
pashok25 [27]3 years ago
5 0
5% of $30 is $1.50    5% (.05) multiply
15% of $70 is $10.50     15% (.15) multiply
0.4% of $100 is $0.40     0.4% (.004) multiply

PolarNik [594]3 years ago
3 0
0.05 x 30 = 1.5

0.15 x 70 = 10.5

0.004 x 100 = 0.4
You might be interested in
Marty is taking piano lessons. She is going to practice every afternoon. The 1st week she practiced for 11 minutes each day. The
defon

Answer:

m=7w+4

Step-by-step explanation:

<u>Linear Modeling</u>

It consist is setting up a linear relationship between two variables, given some experimental data. Only 2 points are needed to set up the equation of a line, but if more than 2 points are used, then the result should use statistical approaches like linear regression to find the best-fit line.

For the question at hand, Marty practices his piano lessons 11 minutes the week #1. It provides the first point (1,11). He practices 25 minutes per day on the third week. It gives us another point (3,25). This is enough to find the equation of a line. The general formula for a line, having two points (m1,w1) (m2,w2) is

\displaystyle m-m_1=\frac{m_2-m_1}{w_2-w_1}(w-w_1)

Let's plug in our values

\displaystyle m-11=\frac{25-11}{3-1}(w-1)

Simplifying:

m-11=7w-7

\boxed{m=7w+4}

3 0
3 years ago
Can someone solve the system of equations?
kogti [31]
Y=x^2-5

y=2x-5
y+5=2x
x=(y+5)/2

y=((y+5)/2)^2-5
y=(y^2+10y+25)/4-5
4y=y^2+10y+25-20
0=y^2+6y+5
0=(y+5)(y+1)
y= -5 or -1

y=2x-5   (y= -5 doesn't work for this one so use -1)
-1=2x-5
2x=4
x=2

Using these answers, you can choose answer D with reasonable certainty.
5 0
3 years ago
Suppose a group of x people rent a log cabin for $320 for a weekend in the mountains and plan to share the cost equally. If one
Zanzabum

320/16 - 1 = 19 ppl hope i helped


8 0
3 years ago
Read 2 more answers
The length of a rectangle is six times its width. If the area of the rectangle is 384^2, find its perimeter.
Leno4ka [110]

Answer:

Perimeter, P = 112 meters

Step-by-step explanation:

  • Let the length of the rectangle be L.
  • Let the width of the rectangle be W.

Translating the word problem into an algebraic expression, we have;

L = 6W  ...... equation 1

<u>Given the following data;</u>

  • Area of rectangle = 384 m²

To find the perimeter of the rectangle;

First of all, we would determine the dimensions of the rectangle using its area.

Mathematically, the area of a rectangle is given by the formula;

Area of rectangle = LW  ..... equation 2

Substituting eqn 1 into eqn 2, we have;

384 = 6W(W)

384 = 6W²

Dividing both sides by 6, we have;

W² = 384/6

W² = 64

Taking the square root of both sides, we have;

W = √64

Width, W = 8 meters

Next, we would find the length;

L = 6W

L = 6 * 8

Length, L = 48 meters

Lastly, we would determine the perimeter of the rectangle using the above dimensions;

Mathematically, the perimeter of a rectangle is given by the formula;

Perimeter = 2(L + W)

Substituting the values into the formula, we have;

Perimeter, P = 2(48 + 8)

Perimeter, P = 2(56)

<em>Perimeter, P = 112 meters</em>

4 0
3 years ago
What Information is required
LenaWriter [7]

Answer:

BC=XY

Step-by-step explanation:

you know 2 angles. you need a side for ASA. BC and XY is the only one that would be included.

8 0
3 years ago
Read 2 more answers
Other questions:
  • What was the purpose of the Pendleton Act?
    12·1 answer
  • Please help ASAP geometry
    13·1 answer
  • Beach ball with diameter of 24 inches what is the volume of air in the beach ball to the nearest of a cubic foot?
    10·1 answer
  • To solve the equation x - 9 = 0,
    5·2 answers
  • An object is dropped from a bridge and allowed to freefall to the ground. The height of the object over time can be modeled usin
    15·1 answer
  • Determine whether the table represents a linear function, an exponential growth function, an exponential decay
    10·1 answer
  • Do you need to use fewer centmeters than meters to measure a cabinet
    10·2 answers
  • If angle DEG is 8x + 14 and angle GEF is 8x - 7, the measure of angle DEG is ___ degrees.
    11·1 answer
  • Simplify as far as possible.<br> 2√125−5√5
    12·2 answers
  • In ΔDEF, the measure of ∠F=90°, DF = 55, FE = 48, and ED = 73. What ratio represents the tangent of ∠D?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!