Mathematics Middle School

(DIFFICULTY: EASY) I need your brains, though.
Solve the word problem by creating an algebraic equation and solving for the unknown value.

David, Josue, and EJ had 72 cookies. Josue ate 5 more than 2 times than David, and EJ ate 3 times more than David. How many cookies did David eat?

Answers

Answer 1

Answer:

David=2x

Josue=2x+5

EJ=3x+2x

Step-by-step explanation:

2x+2x+5+5x=72

9x=72-5

x=72/9-5

x=8-5

x=3???

Answer 2

Answer:

David=2x

Josue=2x+5

EJ=3x+2x

2x+2x+5+5x=72

9x=72-5

x=72/9-5

x=8-5

x=3???

Related Questions

There are 40 students in Joan’s class. She plans to invite them to her birthday party. She asked them to suggest a theme for her party. Three of every eight students suggested a rainbow-themed party. How many students suggested a rainbow-themed party? How many did not?

Answers

Answer:

15 people suggested, 25 did not

Step-by-step explanation:

3 of every 8 so 3:8

There is 40 students in total, so 40/8=5. 5*3=15

15 people suggested, 25 did not

Answer:

15 students suggested a rainbow-themed party.

25 students did not suggest a rainbow-themed party.

Step-by-step explanation:

40 students

3 out of every 8 students suggested rainbow them

40/8 = 5

5 groups = 40 students

1 group = 8 students

3 × 5 (amount of groups) = 15

15 students suggested a rainbow-themed party.

40 - 15 = 25

25 students did not suggest a rainbow-themed party.

I need help in expressions

Answers

I can help with some

More than >
Less than <
Minus -
Times x
Decreased by -
Difference -
Quotient I guess could be / ( divide sign) but the quotient is the answer of a division problem like 8/2=4 the quotient would be the 4
Combined by +
Sum +

What is 1 + 1 x 2 - (2+3) / 2 x 8. Someone please answer.

Answers

Answer: I believe... -17.

Follow the order of operation. PEMDAS....

1+1 x 2 - (2+3) / 2 x 8.

First add up the 2 and the 3 because they're in parenthesis.

1+1 x 2 - (5) / 2 x 8

The multiply the numbers...

1+2 - 5/2 x  8

Multiply the 5/2 and 8 together.

1+2 -20

Add up the 1 and the 2

3-20

Subtract,

-17

So the answer is -17

Answer is -17

Step by step

I follow PEMDAS rules of math

1 + 1 x 2 - (2+3) / 2 x 8

Distribute to eliminate parentheses first

1 + 1x2 -2-3 /2 x8

combine from distribution

1 + 1 x 2 -5/2 x 8

Multiply left to right

1 + 2 -20

Combine

-17

8.25g + 65 = 683.75
8.25 + 65g = 683.75
8.25g - 65 = 683.75
8.25 - 65g = 683.75

Answers

The answer is the first one
8.25g+65=683.75


As you can see in the question it says that each gallon is $8.25. Since each gallon is $8.25 then the g for gallons would go after 8.25 in the equation.

Since he but one irrigation unit for $65, then we only add 65. Lastly, the total cost is $683.75. This means that this number goes behind the equal sign.

The equation is 8.25g + 65 = 683.75

Answer:

Step-by-step explanation:

8.25g + 65 = 683.75

:)

ANSWER ASAP BEFORE CLASS ENDS 50 POINTS !!!

Answers

Answer:

30 to 100

Step-by-step explanation:

cus when y increases 30, x increases 100

30 to 100

because when y increases by 30 x increases by 100

Which expression represents the phrase "the product of 5 and 11"?
Please help im stuck!

Answers

Answer:

Step-by-step explanation:

The product of 5 and 11 is 55.

When a question says "product" it means you have to multiply both numbers, so 5 x 11 is 55.

Step-by-step explanation:

5+7

5+7=12

Get it in your head

Milo can run 12 miles in 60 minutes. He needs to reduce his time by 14%. Approximately how many minutes does he have to take off his time? Round to the nearest whole number.

Answers

Answer: About 8 minutes.

Step-by-step explanation: Because you multiply 60 by 0.14 to get 14% of 60.

He needs to reduce it by 8 minutes

help asap!!!!!! please and thank youuuuu

Answers

Answer:

156°

Explanation:

For this question use the formula "(n-2) x 180°" where n is the number of sides in a regular polygon, and divide the answer by the number of sides.

15 sides(15-2) x 180 = 2,340°2,340 / 15 = 156°
Answer 156 because if we use a protracted measurement it will be the answer

Which circle represents 30% in blue?

Answers

Answer:

The second image. First image is 35%, second is 30%, third is 25% and last one is 50%

i think it’s the last one

What is the measure of the exterior angle?

Answers

Check the picture below.

44, it’s a 30 60 90 triangle so 3x=30 and 5 x 10= 50 then 50-6

Which set of points could represent one of the side lengths of a square that is congruent to the one shown on the coordinate plane
A (3, 0) and (−3, 0)
B (−4, −4) and (−4, −8)
C (−3, −2) and (−6, −2)
D (−2, 6) and (2, 6)

Answers

Hi, I would love to help but Im not able to because I don't see the graph. Because its asking "shown on the coordinate plane" and we don't see it. so if you could provide a picture or points I could help you!!

either I would be B or C

Answer fast, will get brainliest!!
Convert 47 grams to ounces. (1 gram = 0.0352 ounce)

0.0007 ounce
1.6544 ounces
16.544 ounces
1,335.23 ounces

Answers

It is the first one 1.6544

Answer:

1.6544

Step-by-step explanation:

47 x 0.0352 = 1.6544

HELPP. What does this show

Answers

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This line has a slope of 3. This also has a y-intercept of 3 so

y=3x+3

The population of bears on a nature preserve was 95 last year. This year, the population increased by 20%. What is the new bear population on the preserve?

Answers

Answer:

114 bears

Step-by-step explanation:

20% = 0.20 = 0.2

95 × 0.2 = 19

Why: To find 20% of 95

19 + 95 = 114

Why: Add 20% of 95 to 95 to find the new population of the bears.

The new population on the preserve will be 114

3 cans of soup can serve 5 people.

If you want to serve 20 people, what should you do?

Answers

The first time you have a chance at the top is the second one you get a free pass and you can go on your way way
Since 5*4=20 and 3 cans serve 5 people you have to multiply 3 by 4 which 12 I think that is your answer

Hi! This assignment is due soon! Can someone help me with transversals of parallel lines: solve for x. Thank you!

Answers

Here is the answer and how to check if it is right I hope it is correct:)

Angie bikes for 20 minutes burning 150 calories. How many minutes will it take to burn 525 calories?

Answers

Answer:

70 minutes OR 1 hour and 10 minutes (it's the same thing)

Step-by-step explanation:

So this can be modeled by the equation 20/150=x/525

so solving for x, you have to say whats the most times that 150 will go into 525 without going over

the answer is 3

so 150x3=450 and 525-450=75

75 is one half of 150 so it would be 3.5

multiply 20 by 3.5 and you get 70 or 1 hour and 10 minutes since an hour is 60 minutes

Don't forget to give brainliest :)

70 min

Work:

20/150=7.5 Move the decimal

75x7=525

Sara has $25,000 to buy cell phones and chargers for her employees. She buys 38 phones for $640 each. Each charger costs $18. How much money will be left after she buys as many chargers as possible?
I NEED the shown work as well please

Answers

Answer:

-4

Step-by-step explanation:

if you multiply 38 x 640 it will be 24320, and if you multiply 18 x 38 it will be 684. add 24320 and 684 it will be 25004 which means she has -4 dollars i believe

Answer:$14

Step-by-step explanation:

640x38 = 24,320

25,000-24,320 = 680

680/18 = 37.7777 and on

so you would make that 37 chargers she can buy with the remaining money.

37x18 = 666 and 680-666=14

HELP MEEE
Question
Evaluate:

3(d+e) when d =2 and e =3

Enter answer in the box.

Answers

Answer:

positive 15

Step-by-step explanation:

3(2+3)

3(5)

15

3(2)=6
3(3)=9
6+9=15

the answer is 15

What is the equation of the line in slope-intercept form?

Answers

y = 5/2x + 5

5/2 is the slope (rise over run) and we know it is positive because it is going up from left to right. You could also say 2.5, but I don’t know if your teacher wants you to leave it in fraction form. + 5 is the y-intercept.

Y=5/2x+5 is ur answer hope this helps

The supermarket has 15 aisles. 20% are empty, without any shoppers. How many empty aisles are there in the supermarket?

Answers

Answer:

3 empty

Step-by-step explanation:

The supermarket has 15 aisles. 20% are empty, without any shoppers. How many empty aisles are there in the supermarket?

20% = 0.20

15* 0.20 = 3

Answer:

Step-by-step explanation:

15 aisles

20% empty

20/100 x 15

= 0.2 x 15

= 3 empty aisles

20% of 15 equals 3, so there are 3 empty aisles.

Match the solution set of each of the following inequalities with its graph.

Answers

Answer: think about it

Step-by-step explanation:

you will get it

Please answer fast, will get brainliest!!!

Convert 150 pounds to kilograms. (1 pound = 0.454 kilogram)


68.1 kilograms

6.81 kilograms

681 kilograms

0.00681 kilogram

Answers

Answer: 68.1 kilograms

At the conversion rate, 1 pound = 0.454 kilograms, 150 pound is 68.1 kilograms.

What is multiplication?

The mathematical operation of multiplication is arithmetic. Additionally, it involves repeating the same forms of statements.

Given,  conversion rate

1 pound = 0.454 kilograms

To covert the n pounds:

n x 1 pound = n x 0.454 kilograms

Here, we have n = 150

150 x 1 pound = 150 x 0.454 kilograms

150 pounds = 150 x 0.454 kilograms

150 pounds = 68.1 kilograms

Therefore, 150 pounds = 68.1 kilograms.

To learn more about the multiplication;

brainly.com/question/19634536

#SPJ2

six adult tickets to a movie at the theater cost $52.0. find the prince for one ticket.

Answers

Answer:

$8.666...

Step-by-step explanation:

52/6=8.66...

Dawg no way you needed help with this $52/6=8.66

Algebra question. Answer needed

Answers

Answer:

w/4^7

Step-by-step explanation:

the W is on top with the ^7 and the 4 is on the bottom its a fraction

W/4^7 took the test hope this is help for

There were 25 cats and dogs at the pet store. If 60% were cats, how many cats were there?

Answers

Answer:

15 cats

Step-by-step explanation:

we multiply 25 by 60 percent or .6 to find how many cats were there

25x.6=15

15 cats and 10 dogs

Hopes this helps please mark brainliest

Answer:

15 cats

Step-by-step explanation:

use the proportion setup

%/100=part/whole

x will go in place of part because you do not know how many cats there are

60%/100=x/25

60x25=1500

100xX=100x

100x÷100=x

1500/100=15

15 cats and 10 dogs

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

Joseph had 7 1/4ounces of candy to share with his friends. He gave them
2 4/5 ounces of candy when they came over to play video games. How many ounces of candy does Joseph have left?

Please try to give me a step by step explanation! ^_^

Answers

Answer:

4 9/20

Step-by-step explanation:

We are subtracting since he gave them candy

Let's get the whole numbers out of the way

7 - 2 = 5

Now we subtract the fractions

1 / 4 - 4 / 5. We need to find the LCD (Lowest common denominator) of the fractions which is 20 because 4 x 5 = 20 and 5 x 4 = 20

Rewriting the denominators and numerators:

Since we multiply 4 by 5 to get 20 we'll have to do the same to the numerator (1)

1 x 5 = 5

Now we do the same to 4/5. 5 x 4 = 20 and 4 x 4 = 16.

New fractions

5/20 - 16/20 switch it 16 / 20 - 5 / 20 = 11/20  and we get the answer from subtracting the whole numbers by 11/20 (the answer we got from subtracting fractions) 5 - 11/20 = 4 9/20  

Which of the following points has a distance of 3 from the point (-7, 4?)
1. (10, 4)
2. (-7, -1)
3. (-10, 4)
4. (4, 4)

Answers

Answer:

(-10,4)

Step-by-step explanation:

The red dot is (-7,4).

the answer is (-10,4)

Question below, URGENT!!
Sorry it’s out of order.

Answers

The correct answer is C.

Each letter in this addition problem stands for a different digit, but, for example, all of the
H's stand for the same digit. Reconstruct the problem to find the value of THERE.
HALT
+HALT
———-
THERE

Answers

Answer:

  9641 + 9641 = 19282

Step-by-step explanation:

You want to assign a different digit to each of the letters H, A, L, T, E, R such that ...

  HALT + HALT = THERE

Solution

The T in the most significant digit of the sum must be T = 1, because a carry from the sum of two digits cannot exceed 1. That means E = 2. In order for H+H = TH, we must have ...

  H + H + 1 = 10 + H

  H = 9

In order for there to be a carry into the 4th column (from the right), the value of A must be 5 more than the value of T:

  A = 6

Since E in the third sum digit is even, there can be no carry from the sum L +L = R. This leaves R an even digit not 0, 2, or 6. It cannot be 4, because that would require L=2, but we already have E=2. This leaves R = 8 and L = 4.

The sum is ...

  HALT +HALT = THERE   ⇒   9641 +9641 = 19282

The value of THERE is 19282.

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