Mr. Weston boughtn,new microscopesn for his science classroom. each microscope cost $99.90, and he spent a total of $499.50 how many nicroscopesn,did Mr Weston buy?​

Answers

Answer 1

Answer:

5

Step-by-step explanation:

Take the total amount spent and divide it by the cost of each microscope.

$499.50 ÷ $99.90 = 5

Answer 2

Answer:

5

Step-by-step explanation:


Related Questions

The perimeter of a triangle is 32 feet. One side of the triangle is 3 times the second side. The third side is 12 feet longer
than the second side. Find the length of each side.

Answers

We have a triangle whose perimeter is 32 feet. Some information regarding the sides of the triangle is given:

GiveN:

One side is 3 times the second side.Third side is 12 feet longer than the second side.

As we can see that, two sides of the triangle are defined the second sides. It means First and third side can be expressed in the form of second side.

So let the second side be x

Then,

First side = 3xAnd, third side = x + 12

We know that, perimeters is the sum of the lengths of all sides of the triangle, So it can be written as:

[tex]3x + x + x + 12 = 32[/tex]

Solving it further,

[tex]5x + 12 = 32[/tex]

Subtracting 12 from both sides,

[tex]5x + 12 - 12 = 32 - 12[/tex]

[tex]5x = 20[/tex]

Dividing 5 from both sides,

[tex] \frac{5x}{5} = \frac{20}{5} [/tex]

[tex]x = 4[/tex]

Then,

First side = 3x = 12 feetSecond side = 4 feetThird side = x + 12 = 16 feet

And we are done with the answer !!

#CarryOnLearning

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the circumference of a new P205/70R16 tires is 85.66in. if the old factory installed tires had a circumfrense of 72.13 in find the ratio

Answers

Answer:

wait one second

Step-by-step explanation:

i am working on it

X
A spinner is divided into 4 equal sections labeled with the numbers 1 through 4. The tree
diagram represents all of the possible outcomes of spinning the spinner twice. Use the drop-
down menus to complete the statements about the possible outcomes.

Answers

Answer:

Step-by-step explanation:the first one is 8

Second 3 3- 6

1) There are total 16 possible outcomes.

2) There are 6 possible outcomes for spinning two numbers that have sum greater than 5.

3) There are 4 possible outcomes for spinning the same number twice.

What is probability?

" Probability is a branch of mathematics which represents the all possibilities. It is defined as the ratio of total number of favourable outcomes to the total number of outcomes of the particular event."

According to the question,

A spinner is divided into 4 equal sections that is 1 to 4.

As per the diagram,

All possible outcomes are as follow:

{ (1 ,1), ), (1,2), (1,3), (1,4), (2,1),  (2,2), (2,3), (2,4), (3,1), (3,2), (3,3), (3,4),(4,1),(4,2),(4,3), (4,4) }

1)  Total possible outcomes = 16

2) Possible outcomes for spinning two numbers that have sum greater than 5 are (2,4), (3,3), (3,4), (4,2), (4,3), (4,4)

Therefore,

Total Possible outcomes for spinning two numbers that have sum greater than 5 = 6

3) Possible outcomes for spinning the same number twice are (1,1), (2,2), (3,3), (4,4)

Therefore,

Total Possible outcomes for spinning the same number twice = 4

Hence,

1) There are total 16 possible outcomes.

2) There are 6 possible outcomes for spinning two numbers that have sum greater than 5.

3) There are 4 possible outcomes for spinning the same number twice.

Learn more about probability here

https://brainly.com/question/23044118

#SPJ2

There were 81 elk introduced in Missouri in 2012. In 2018, there are about 170 adults. If the population continues to grow linearly at this rate, what will the population be in 2020?

Answers

Answer:

there will be 259 elk

Step-by-step explanation:

A map is drawn to scale so that a length of 1 inch represents an actual distance of 6 miles. If two
towns are 30 inches apart on the map, what is the actual distance between the two towns?

Answers

The answer is 180.
Just multiply thirty and six.
Hope that helps!

Choose the algebraic expression that represents the area of a triangle that has a base 4 inches less than 5 times wider than the height.
a (1/2)(5h)(h – 4)
b (1/2)(5b + 4)(b)
c (1/2)(5h – 4)(h)

Answers

Answer:

c (1/2)(5h – 4)(h)

Step-by-step explanation:

Area of a triangle = 1/2 × base × height

Let

Height of the triangle = h

Base 4 inches less than 5 times wider than the height.

Base of the triangle = 5h - 4

Area of a triangle = 1/2 × base × height

= (1/2)(5h-4)(h)

The algebraic expression that represents the area of a triangle that has a base 4 inches less than 5 times wider than the height is (1/2)(5h-4)(h)

Option C is the correct answer

Answer:

c

Step-by-step explanation:

i had this same question a while ago

c=2×3.14r to find the circumference of a circle with a radius of 5 meters​

Answers

Answer:

C≈31.42

r Radius 5

-7 (8s + 9f) if s = -5 and f = -3

Answers

Answer:

469

Step-by-step explanation:

Substitute -5 and -3 into the equation:

-7(8 (-5) + 9 (-3)

-7(-40 - 27)

-7(-67)

+469

Describe the transformation used to map the graph of f(x) =x onto the graph of g(x)= 4x

Answers

Answer:

Step-by-step explanation:

5). Graph of the parent function f(x) = x has been given in the picture.

   To map the graph the function 'f' onto the graph of function 'g',

   f(x) = x

   g(x) = 4x

   A vertical stretch of the function 'f' by a scale of 4 is required.

6). Rule for a function to be translated by 'a' units down,

   g(x) = f(x) - a

   By this rule, if the function 'f' is translated 7 units down,

   g(x) = f(x) - 7

   g(x) = x - 7

In the table below, x represents miles traveled and y represents the cost to travel by train. Miles, x 2 5 Cost, y 8.50 15.25 22.00 31.00 8 12 What is the y-intercept of this function? 0 2.25 4.00 6.50 O 17.13​

Answers

Answer:

4.00

I just did the question

Answer:

The Answer is B. 4.00

Step-by-step explanation:

In a lab, a substance is heated by 4°C each hour for 28 hours. What was the total change in temperature?

Answers

Answer:

112 difference in tempature

Step-by-step explanation:

multiply 4x28

I
Table 1: multiple regression estimates.
reg sleep age toturk
Source
SS
df
MS
Model
Residual
15155229.8
124084606
2
703
7577614.89
176507.263
Number of obs
F(2, 703)
Prob > F
R-squared
Adj R-squared
Root MSE
706
42.93
0.0000
0.1088
0.1063
420.13
Total
139239836
705
197503.313
sleep
Coef.
Std. Err.
t
P>It!
[95% Conf. Interval]
age
toturk
cons
2.923879 1.396712
-.14901071 .0167207
34597201 68.11787
2.09
-8.91
50.93
0.037
0.000
0.000
.1816517
-.1818393
3335.462
5.666105
-.1161822
3602.939
Calculate the regression coefficients in the above table by hand, using the statistics below and the
formulas in Ben's Chapter 3 notes (“example with k = 2")?
Table 2: variances and covariances.
corr sleep age totwrk, covariance
(obs=706)
sleep
age
totwrk
sleep
age
totwrk
197503
455.554 128.655
-135324 -532.718
897700

Answers

Answer:

sleep ia word qjwjnwjeje


1. Ms. Scott raised $4,763 for the local charity. Find the opposite of this integer.

Answers

Answer:

D

Step-by-step explanation:

Shsgbsbdh

what is the answer? x+300=500 Will mark brainliest for high quality answers

Answers

Answer: x=  

3

500

​  

=166.667

Step-by-step explanation:

This deals with adding, subtracting and finding the least common multiple.

Hey there!

ANSWER: [tex]x=200[/tex]EXPLANATION:

[tex]x+300=500[/tex]

To solve this, we can just do 500 - 300.

[tex]500-300=200\\x=200(ANSWER)[/tex]

Hope this helps!

[tex]-TestedHyperr[/tex]

Simplify (x4 – 3x3 – 11x2 + 3x + 10) (x – 5)

Answers

Answer: -17+3x

step by step:

4-3x3-11x2+3x+10

4-9-11x2+3x+10

4-9-22+3x+10

-17+3x

Ron is saving 2/13 of his monthly income of 3978 for a new car. how much money is he setting aside each month for that car?

Answers

Answer:

$612

Step-by-step explanation:

2/13 of 3978 is 612

Which graphs display a directly proportional relationship? Check all that apply.

Answers

Answer:

A, C, and D

Could you please give me Brainliest?

Answer:

answers are a c d

Step-by-step explanation:

look at the lines that' how you find your answer

Help me ASAP plsssssssssssssssssssssssssssss

Answers

Answer:

B

Step-by-step explanation:

Answer: B. Recycling

Step-by-step explanation: Recycling is turning something like newspapers and making them into new products.

Mark Brainliest if you want!

The gestation period of humans (266 days) is what percent longer than the gestation period of pigs (115 days).

Answers

Answer:

56.8%

Step-by-step explanation:

(115/266)* 100 = 43.2%

which means 115 is 43.2% of 266

so,

The gestation period for Humans is 56.8% (100 - 43.2) longer than of pigs

I hope this is correct!

Have some points, i have to put in a question anyway to be "Part of The Community"

Answers

Answer:

yay!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Step-by-step explanation:

Answer:

:)

Step-by-step explanation:

thanks! have a nice day!

Lily and Layla are bakers and were having a contest to see who could bake more cupcakes in 8 hours. Lily can bake 7 cupcakes in 10 minutes. Layla can bake 8 cupcakes in 12 minutes. The next day, Lily sold LaTeX: \frac{2}{3}2 3 of her cupcakes at $1.29 each. Layla sold 75% of her cupcakes at $0.89 each. Who made more money?

Answers

Answer:

5.000 and dont say its wrong because whats the point of asking a question you already know?

Step-by-step explanation:

800 out of 1/10 is what?

Answers

The answer is 80.

Please mark brainliest

Joseph is building a doghouse. He wants it to be a replica of his house, but smaller. His house is 18 feet tall. He needs the doghouse to be between 3 and 4 feet tall. Therefore, the doghouse should be what percentage of the size of his house? (Provide a range

Answers

Answer:

19%

Step-by-step explanation:

3/18=.19 and something else

3.5/18=.19 and something else

4/18= .19 and something else

18 * 19%= somewhere in between 3 and

10 blue marbles, 3 white marbles, 15 violet marbles, and 5 green marbles, ratio of white marbles to green marbles?

Answers

the correct answer is 3:5

Answer:

3:5

Step-by-step explanation:

10 Blue Marbles

3 white marbles

15 violet marbles

5 green marbles

Ratio: white to green marbles

ratio symbol ":"

3 White & 5 Green

Answer: 3:5

Hope this helps :) !!!

You dont have to do all of them, but if you do you will get brainliest and five star.
1. what are the corrospoding parts of these two traingles? Write the corresponding angles and corresponding sides. 2. Assuming these triangles are simular, use the labels to write the ratios of corresponding sides that are proportional 3. Assuming these triangles are simular, write three statements relating the angle that are congruent

Answers

Answer:

See below.

Step-by-step explanation:

1. Look at the marks on the angles of both triangles.

Angles C and F have a single mark (that looks like an arc). They are congruent.

Angles A and D have a double mark (that look like arcs). They are congruent.

Angles B and E have a triple mark (that look like arcs). They are congruent.

Each pair of congruent angles is a pair of corresponding angles.

Corresponding angles:

<C and <F

<A and <D

<B and <E

For corresponding sides, we do this.

First, we write a statement of similarity.

Triangle ABC is similar to triangle DEF.

The statement of similarity must have the corresponding angles in the same order.

The order ABC and the order DEF matches corresponding angles.

The corresponding sides have the vertices of corresponding angles as their endpoints.

Corresponding sides:

AB and DE

BC and EF

AC and DF

2. For similar triangles, the ratios of the lengths of corresponding sides are equal.

The ratios of  the lengths of corresponding sides are equal:

AB/DE = BC/EF = AC/DF

3.

<A is congruent to <D

<B is congruent to <E

<C is congruent to <F

Find the length of each segment with endpoints A and B. Select the exact answer. (This means that it is either an integer or in simplest radical form) A (5,-6) B (-2,-8) a 10 b 3 c53 d 17 ​

Answers

It’s b bucko I did that

What percent of 86 is 50 to the nearest whole percent

Answers

Answer:

58%

Step-by-step explanation:

50/86 is approximately equal to 0.58, and when you convert that into percentage you get 58%

Joey earned $10 for every car he washed on Friday. If he earned $190, how many cars did he wash?

Answers

Answer:

19

Step-by-step explanation:

4(1+9x) simple fie for me please

Answers

Answer:
4+36x

Process:
4(1+9x)
Multiply 4 by the parentheses
=4*1+4*9x
=4+36x

I hope this helped! If it did, a brainliest would be much appreciated :)

Homework Worksheet: 3.2 Day 1 - Slope
Name:
Period:
Question 1: Identify the slope (Positive, Negative, Zero, Undefined)
ANSWER:
Question 2: Identify the slope (Positive, Negative, Zero, Undefined)
ANSWER:
1
Question 3: Find the slope & explain what kind of slope it is.
ANSWER:
Question 4: Find the slope & explain what kind of slope it is.
ANSWER:
Question 5: Find the stope & explain what kind of slope it is
(12.-18) and (11, 12)
ANSWER:
Thank

Answers

Answer:

1) zero

2) undefined

3) negative

4) positive

5) negative y= -30x+342

hope this helps;)

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