Дима и Саша выполняют одинаковый тест. Дима отвечает за час на 12 вопросов теста, а Саша — на 22. Они одновременно начали отвечать на вопросы теста, и Дима закончил свой тест позже Саши на 75 минут. Сколько вопросов содержит тест?

Answers

Answer 1

Answer:

Я думаю, что это 24, потому что 12 + 12 - это двадцать четыре, так как он закончил позже.


Related Questions

The Nut Shack sells hazelnuts for $7.00 per pound and peanuts nuts for $5.30 per pound. How much of each
type should be used to make a 30 pound mixture that sells for $6.43 per pound?

Answers

Answer:

10.06 lbs of peanuts and 19.94 lbs of hazelnuts.

Step-by-step explanation:

lb=pound

30 lb mixture at $6.43/lb means that the total cost of the mixture is 30×6.43=192.9

Let H = weight of hazelnuts in the mixture.

Let P = weight of the peanuts in the mixture.

Set up a system of equations.

7H + 6.43P = 192.9

H + P = 30

Afterward, input the values into the equations above.

H = 30 - P

7(30-P) + 5.3P = 192.9

210 - 7P + 5.3P = 192.9

210 - 1.7P = 192.9

-1.7P + 210 = 192.9

-1.7P = 192.9 - 210

-1.7P = -17.1

P = -17.1 / -1.7 = 10.06

H = 30 - P = 30 - 10.06 = 19.94

Hence, the mixture contains 10.06 lbs of peanuts and 19.94 lbs of hazelnuts. Hope this helps and have a great day!

SIMPLIFY THE EXPRESSION:

Answer choices:

A. 2xyz^2
B. 2x^-7y^7z^2
C. 5x^12y^12z^2
D. 5xyz^2

THANK YOU SO MUCH!

Answers

Answer: The answer is A) 2xyz^2

Step-by-step explanation: I used a math website

Someone help on this please

Answers

Answer:

A. The triangles are not similar to each other.

Step-by-step explanation:

[] A triangle's angles all add up to 180°

-> For triangle ABC the angles are 80°, 40°, and unknown

-> For triangle DEF the angles are 80°, 70°, and unknown

[] For triangle ABC the angles are 80°, 40°, and unknown

-> 180° - 80° - 40° = 60°

-> Triangle ABC has angles of  80°, 40°, and 60°

[] For triangle DEF the angles are 80°, 70°, and unknown

-> 180° - 80° - 70° = 30°

-> Triangle DEF has angles of 80°, 70°, and 30°

[] A. The triangles are not similar to each other.

-> Since we do not have any side lengths, we must go off of AA (angle & angle) but as AA is not true, these triangles are not similar

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

Need HELP ASAP WORTH MANY POINTS

Answers

I guess BC is 24.
3x+x+3x+x=64
8x=64
x=8
BC=3x=3.8=24
BC=24

They are going to build wind turbines off the coast of Staten Island. It requires ⅙ square miles of land. How many turbines can be built on 8 square miles of land?

Answers

Answer:

48

Step-by-step explanation:

Here we will show you how to calculate 8 divided by 1/6. We will give you the answer in fraction form and in decimal form.

Here is 8 divided by 1/6 displayed mathematically in colors:

8

 ÷    

1

6

The numbers in 8 divided by 1/6 are labeled below:

8 = whole number

1 = numerator

6 = denominator

To make it a fraction form answer, you multiply the whole number by the denominator and make the result the new numerator. The old numerator becomes the new denominator:

8 x 6

1

 =  

48

1

Thus, the answer to 8 divided by 1/6 in fraction form is:

48

1

To make the answer to 8 divided by 1/6 in decimal form, you simply divide the numerator by the denominator from the fraction answer above:

48 / 1 = 48

The answer is rounded to the nearest two decimal points if necessary.

48/1 is an improper fraction and should be written as 48.

In the fraction 9/10, which number is the numerator?

Answers

Answer:

9

Step-by-step explanation:

9  ---> numerator

10  ---> denominator

Which of the following terminating decimals is equivalent to. 3/8?
a- 0.250
b- 0.376
c- 0.380
d- 0.830​

Answers

b-assuming you meant to type .375. That is 3/8 in decimal form.
answer is b. 1/4 = .250

QUESTION ON PIC THANK YOU !!!

Answers

Triangle a - acute
Triangle b - acute
Triangle c - acute
Triangle d - right

Answer:

Triangle A: Acute

Triangle B: Obtuse

Triangle C: Acute

Triangle D: Right

Step-by-step explanation:

Acute angle: 0°-90°

Right angle: 90°

Obtuse angle: 90°-180°

An acute triangle only has acute angles. A right triangle has one right angle and two acute angles. An obtuse triangle has one obtuse angle and two acute angles.

what is the equation of the line

Answers

Answer:

y = 1/2x + 2

Step-by-step explanation:

y = mx+b, where m is the slope, b is y-int, and y and x are variables.

Step 1: find the y-int: 2. Using this you can out rule C and D.

Step 2: find the RISE/RUN: 1/2. This is your slope.

Step 3: fill in your equation.

Hope that helps

If a giraffe is 9 feet tall, what is its height in decimeters?​

Answers

Answer:

The height of the giraffe is 27.432 decimeters.

Step-by-step explanation:

To convert 1 foot to decimeters you would multiply by 3.048.

We need to multiply 9 feet by 3.048 which would give you the answer of 27.432 decimeters.

Find the value of x. 3x+15=180

Answers

Answer:

[tex]3x + 15 = 180[/tex]

[tex]3x = 180 - 15[/tex]

[tex]x = \frac{165}{3} [/tex]

[tex]x = 55[/tex]

hope it helps you

make me brainliest if u r satisfied

- Quinton struck out 12 batters in his first baseball game, 5 batters in the
second game, and 8 batters in the third game. How many batters did he
games?
strike out in all three games

Answers

We know that Quinton struck out 12 batters, 5 batters, and 8 batters. Key word: in all. In all means addition. So, 12 + 5= 17, and 17 + 8= 25. 25 batters.

Which of the following best describes the graph below?

Answers

Answer:

Option (B)

Step-by-step explanation:

(b). It's a many-to-one function.

Find the product 0.061x0.43

Answers

Answer : 0.02623

Step - by - step explanation :

0.061 x 0.43 = 0.02623

( try asking a more complicated question next time :,D )

Answer:

0.02623

Explanation:

I don't know how to explain it just 0.0.61 x 0.43 = 0.02623

Round 65,439 to nearest ten-thoudand

Answers

Answer:

It would be 66,000

Step-by-step explanation:

you round to the number next to you some saying I learned were 5 and above give it a shove 4 or less give it a ress.

example 598 round to nearest hundred would be 600 because the 9 is 5 and above so answer 600

Which expression has like terms?

13c−13d

4+4y

8x2−4y2

8x−4x

Answers

8x-4x has like terms
5/2 this is how you solve this one

CHING
Section 12.3
In the Supermarket
Shopping Math
The purpose of this activity is to practice using math skills to identify the better buys.
Part I. Directions: What is the unit price? Round to the nearest whole cent.
A. 5 for $1.00
B. 6 for $2.00
C. 12 for $2.99
D. $1.79 for 16 ounces
E. $3.97 for 9 ounces
F. $2.19 for 7.5 ounces
G. 14.5 ounces for 79 cents
H. 51.99 per pound
I. 2 for 99 cents, 16 ounces each
cents each
cents each
cents each
cents per ounce
cents per ounce
cents per ounce
cents per ounce
cents per ounce
cents per ounce

Answers

Answer:

Sheesh that's crazy bro that's real crazy bro

PLZ HELP ASAP!!!!!!!!!

Answers

The regular polygon has 9 sides

Answer:

this polygon has four sides shown here

Step-by-step explanation:

A high school teacher recorded the number of hours each of his students spent on a social networking website in a particular week and related this with their scores on a math test they took at the end of the week. The data is represented in the scatter plot.

Qualitatively evaluate the information in the scatter plot. An acceptable estimate for the graph's correlation coefficient could be
[ Select
1.00
0.75
0.15
0.55]

Based on the data, we can conclude that the time students spent on the social networking website had a
[ Select
week or insignificant
strong and positive
strong and negative
moderate and negative]
effect on their performance on the test.

Answers

Answer:

theres the picture tysm

Qualitatively evaluate the information in the scatter plot. An acceptable estimate for the graph's correlation coefficient could be

[ Select

1.00

0.75

0.15

0.55]

Based on the data, we can conclude that the time students spent on the social networking website had a

[ Select

week or insignificant

strong and positive

strong and negative

moderate and negative]

effect on their performance on the test.


A car travels at an average speed of 52 miles per hour. How long does it take to travel 221 miles? ​

Answers

Answer:

4 Hours and 15 Minutes

Step-by-step explanation:

1 Hour = 52

221/52 = 4.25

4 hours, 15 minutes

For example 15 minutes (¼ hour) equals . 25, 30 minutes (½ hour) equals . 5, etc.

Dan had sixteen dimes and thirty-seven pennies in his bank. His dad borrowed nineteen pennies from Dan. How many pennies does he have now ?

Answers

Answer:

if he had 37 pennies and his dad borrowed 19 it means that he has 18 pennies left.

PLEASE HELP ASAP!!!!!!

Answers

Answer:

20

Step-by-step explanation:

good luck!!

Answer:

24 or 20

Step-by-step explanation:

Please help, I need help.

I don't understand.

Answers

Find slope of both

#1

(11,2)(22,4)

[tex]\\ \tt\hookrightarrow m=\dfrac{4-2}{22-11}=\dfrac{2}{11}=1.8[/tex]

#2

(0,0)(5,1)

[tex]\\ \tt\hookrightarrow m=\dfrac{1-0}{5-0}=\dfrac{1}{5}=0.2[/tex]

Option C is correct

A searchlight rotates through one complete revolution every 36 seconds. How long does it take the light to rotate through 90°?

Answers

Answer: 1 second

1 full revolution=360

4seconds=360degrees

how many seconds are 90 degrees

4:360=x:90

4/360=x/90

simplify

1/90=x/90

1=x

the answer is 1 second

Step-by-step explanation:

Hope this helps you!!!!!!!!! :D

9 seconds

360° can be divided by 9° into 4 parts. 36 divided by 4 is 9

23.
The ratio of the number of boys to the number of girls in a hall was
3:2 at first. After 30 boys left the hall, the ratio became 2 : 3. How
many boys were there in the hall at first ?

Answers

72 boys.

Step-by-step explanation:

no. of boys (initial) : no. of girls : no. of boys (final)

3 : 2

3 : 2

______________________________________

9 : 6 : 4

9u - 4u = 5u = 30

5u = 30

1u = 30/5 = 8

9u (initial no. of boys) = 8×9

= 72

Select the quadratic function that has a vertex at (3, –5).

Question 3 options:

y=(x−3)2−5

y=(x−3)2+5

y=(x+3)2−5

y=(x−5)2+3

y=(x−5)2−3

y=(x+5)2+3

Answers

[tex]~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(h,k)}\\\\ \stackrel{"a"~is~negative}{op ens~\cap}\qquad \stackrel{"a"~is~positive}{op ens~\cup} \end{cases}[/tex]

we know the vertex is at h = 3 and k = -5

[tex]\stackrel{vertex}{(\stackrel{h}{3}~~,~~\stackrel{k}{-5})}\qquad \implies y=(x-3)^2-5[/tex]

ABCD is a momous where mZDAC = 47+9 and mZDAB=112 - 3
B
C
What is the m2ABC?
MZABC
degrees

Answers

Answer:

53

Step-by-step explanation:

in rhombus, opp angeles are equal.

4x+9 =(11x-3)/2--ac bisects the angle dab

8x+18 = 11x-3

3x = 21

x=7

angle dab = 11*7-3/(2)= 77-3/(2)= 74/2= 37

total of angles = 180

74+2x = 180

2x = 106

x=53

108 115 122 129 next number in sequence

Answers

Answer:

136

Step-by-step explanation:

its skip counting by 7 108+7=115+7=122 and so on

A satellite flies 28912 miles in 5.56 hours. How many miles has it flown in 12.93
hours?

Answers

67,239; 28912/5.56= 5,200 miles per hour and then multiply that by 12.93


A company has issued 6.7 million shares of stock. A mutual fund owns 99,000 shares of this company's stock. What
percentage of the company's shares are owned by the mutual fund? Give your answer rounded to the nearest tenth of a
percent.

Answers

99,000 / 6,700,000 = 99 / 6700

1.4776% of the shares are owned by the mutual fund

so 1.5% if I round

please give brainliest

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