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
sertanlavr [38]
3 years ago
12

Rounding or compAtible number to estimate the sum 171+727

Mathematics
1 answer:
VLD [36.1K]3 years ago
8 0
200+700=900
Okokokokokok








You might be interested in
A salesperson at a jewelry store earns ​8% commission each week. Last​ week, Ali sold $450 worth of jewelry. How much did Ali ma
Lilit [14]

Answer:

she earned 36$ and the store earned 409.5

Step-by-step explana

8% of 450

91% of 450

7 0
3 years ago
Use the following table for questions 11-13.A baseball manager believes a linear relationship exists between the number of Home
slamgirl [31]

The regression equation of Y on X is given by the following formula:

Y-\bar{Y}=b_{yx}(X-\bar{X})

Where byx is given by the formula:

b_{yx}=\frac{N\sum^{}_{}XY-\sum^{}_{}X\sum^{}_{}Y}{N\sum^{}_{}X^2-(\sum^{}_{}X)^2}

Where N is the number of values (N=8). We need to find the sum of X values, the sum of Y values, the average of X, the average of Y, the sum of X*Y and the sum of X^2.

The table of values is:

The values we need to know are on the following table:

By replacing the known values in the formula we obtain:

\begin{gathered} b_{yx}=\frac{8\cdot26125-167\cdot995}{8\cdot4649-(167)^2} \\ b_{yx}=\frac{209000-166165}{37192-27889} \\ b_{yx}=\frac{42835}{9303} \\ b_{yx}=4.6 \end{gathered}

Now, the average of X and Y is the sum divided by N, then:

\begin{gathered} \bar{X}=\frac{167}{8}=20.87 \\ \bar{Y}=\frac{995}{8}=124.37 \end{gathered}

Replace these values in the formula and find the regression equation as follows:

\begin{gathered} Y-124.37=4.6(X-20.87) \\ Y-124.37=4.6X-4.6\cdot20.87 \\ Y=4.6X-96.11+124.37 \\ Y=4.6X+28.26 \end{gathered}

The answer is a) y=4.6x+28.26

7 0
1 year ago
The steps for solving the equation 2x-3=7
saw5 [17]

Step 1: Add 3 to both sides.

2x-3+3=7+3

2x=10

Step 2: Divide both sides by 2.

2x/2=10/2

x=5


3 0
3 years ago
Read 2 more answers
Gavin and Caleb go to the movie theater and purchase refreshments for their friends. Gavin spends a total of $22.25 on 2 bags of
gavmur [86]

Answer:

Drinks = 6.75

Popcorn= 1

Step-by-step explanation:

Let the popcorn = P

Let the drink = D

2*P + 3*D = 22.25         multiply this equation by 6

12*P + 4D = 39.00

<u>12P + 18D = 133.5</u>          Subtract these two equations

- 14D = - 94.50               Divide by -14

-14D/-14 = -94.5/-14        Do the division

D = 6.75

=========================

12P  +  4D = 39            Substitute for D

12P + 4*6.75 = 39        Combine

12P + 27 = 39               Subtract 27 from both sides

12P + 27-27=39-27      Collect like terms

12P = 12                        Divide by 12

12P/12 = 12/12

P = 1                               Answer

8 0
3 years ago
Read 2 more answers
Wilson began watering his garden with a watering can that was completely full. The amount of water in the can as Wilson was wate
givi [52]

Answer:

Option B is correct, i.e. The amount of water originally in Wilson's can was 2.5 gallons.

Step-by-step explanation:

Given is the graph of Amount of water (in gallons) v/s Time (in seconds).

It is a linear graph whose general equation is given as follows:-

y=mx+b.

Where y = Amount of water, x = Time, m = slope, b = y-intercept (when time is zero).

Finding slope of line, m = (2.3 - 2.5)/(1 - 0) = -0.2 gallons per second.

Finding y-intercept of line, b = 2.5 gallons (at t=0).

Hence, option B is correct, i.e. The amount of water originally in Wilson's can was 2.5 gallons.

6 0
3 years ago
Read 2 more answers
Other questions:
  • 9/5 , - 2.5 , - 1.1 , - 4/5 , 0.8 from least to greatest
    7·1 answer
  • For point (3,-7) what is it’s distance to the x-axis
    13·1 answer
  • The slope of a line passing through the points (-2, 3) and (2, 7) is 1. a)True b) False
    15·2 answers
  • Put these numbers in order from greatest to least. -2/20, 12/24, 3, 2/10​
    13·1 answer
  • PLEASE HELP ASAP! BRAINLIEST TO CORRECT AND PROPER ANSWER!
    11·2 answers
  • If you conducted a survey on the distribution of M &amp; M colors in 20 packages chosen at random, what type of graph would be b
    14·1 answer
  • Could someone please help... offering Brainliest!
    8·1 answer
  • The x-values in a function are the: <br> A. Range <br> B. Domain <br> C. Median
    6·1 answer
  • 69. The height of a triangle is 1 in more than the base. If the height is increased by 2 in while the base remains
    12·1 answer
  • A cake recipe requires 4 and one-half cups of flour to make 1 cake. How many cakes can be made by a baker who has 16 cups of flo
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!