Mathematics High School

When a number is multiplied by 5 before subtracting from 78 the result obtained is the same as three times the sum of the number and 5 find the number

Answers

Answer 1

Answer:

x = 7.875

Step-by-step explanation:

Let the number = x

When a number is multiplied by 5 before subtracting from 78 the result obtained is the same as three times the sum of the number and 5 find the number

Hence,

78 -(x × 5) = 3(x + 5)

Expand the brackets

78 - 5x = 3x + 15

Collect like terms

78 -15 = 3x + 5x

63 = 8x

x = 63/8

x = 7.875

Related Questions

The number of boys exceeded the number of girls by seven. There were 29 boys and girls. How many of each were there?

Answers

Answer:

Girls: 11

Boys: 18

Step-by-step explanation:

x: number of girls

x+x+7=29

2x=22

x=11

number of guys:

x+7=11+7=18

What is the value of this expression?

7 + 4 × (6 − 2)2

Answers

Answer: 39
Explanation:
Use PEMDAS
First is parentheses
7 + 4 * (4) 2
Next is multiplication
7 + 16 * 2
Multiply 16 by 2 to get 32
Then add
32 + 7 = 39
Therefore, answer is 39
Hope it helps

PLEASE HELP ASAP PLEASE​

Answers

Answer:

-5.5

Step-by-step explanation:

-10, -9, -8, -8, -6, -5, -1, 1, 7, 6

Someone pls help:( im new tysm if u doo!

Answers

75.5 all you do is add them
59 + 16.5= 75.5! I’m new too let me know if you need anymore help you can always message me! (I’m in seventh grade and I really like to help people!, it’s really entertaining for some reason)

can someone please help me on numbers 5-10 and please show and explain your work HELP THIS IS DUE SOON thxs uwu

Answers

Answer:

hi bri

Step-by-step explanation:

1) Is this relation a function? WHY or WHY NOT?
X
-1
у
-8
5
9
-9
7
-8
-6
5
4

Answers

Answer:

yes its a function because the x side doesnt repeat itself

Step-by-step explanation:

Answer:

Yes.

Step-by-step explanation:

what is q(x)=9x2-24x+16

Answers

Answer:

1  1/ 3

Step-by-step explanation:

Every day, the Clark Pet Store uses 1 1/2 bags of dog food to feed the dogs. How many days will 7 1/2 bags of dog food last?

Write your answer as a fraction or as a whole or mixed number.

Answers

sheeeesh i think the it’s 1/2 .2 in a meter of 55 6.789

brian, tim and kenny got paid a total of $240 for mowing neighborhood lawns . They split the money in the ratio of 5:9:10 . how much money did each boy make . PLEAEEEE SHOW THE work i’m really struggling rn

Answers

Answer:

$50 for Brian

$90 for Tim

$100 for Kenny

Step-by-step explanation:

Let 5x = amt for Brian

     9x = amt for tim

     10x = amt for ken

5x + 9x + 10x = 240

24x = 240

x = 10

5x = 5(10) = $50 for Brian

9x = 9(10) = $90 for Tim

10x = 10(10) = $100 for Kenny

Answer:

Step-by-step explanation:

5x + 9x + 10x = $240

x = $10

Brian got 5x = $50

Tim got 9x = $90

Kenny got 10x = $100

lcm of 4,3,6
Pls tell

Answers

Answer:

12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

The radius of a circle is 18.1 cm. Find the circumference to the nearest tenth.
Answer C=__________​

Answers

Answer:

C = 113.73 round it to the nearest tenth 114

thomas sold 412 boxes of cookies at a cost of 1175 what is an estimate closest to the cost of a box of cookies
​

Answers

Answer:

285

Step-by-step explanation:

1175 divided by 412 = 2.85194174757

that would be around 2.85

I believe it’s 2.8$ Just divide 1175 by 412 and you’ll get the answer

Find the value of x in the picture below.



Answers

The answer is c because

Yes or no? Plzzz explain why

Answers

Answer: no

Step-by-step explanation:

Steven must have gotten this answer from 11 x 11, which is wrong. The reason is because of the square root.

[tex]\sqrt{11} = 3.3166247903554[/tex]

(roughly 3.32)

So using the formula for a square l x w, the square's area is 11.0224 or 11.02

e) What fraction is equal to 50% of
1/6
?

Answers

Answer:

1/12

Step-by-step explanation:

Answer:

1/12

Step-by-step explanation:

50/100*1/6

1/12

From a survey of 100 commuters about how they get to work, 38 said they drive their cars, 47 said they take the bus, 14 said they take the subway, and 1 said they ride their bicycle. If there were 4,800 commuters total. How many drove a car out of the 4,800? How many took the bus out of the 4,800? How many took the subway of the 4,800? How many rode a bicycle out of the 4,800? PLEASE HELP

Answers

1824 drove a car

2256 take a bus

672 ride the subway

48 ride a bicycle

answer this please !!

Answers

Answer:

[tex]36 \times 12 \times 23 = 9936 \\ 9936 \div ( {12}^{3} ) = 5.75[/tex]

Calculate each value for ⊙P. Use 3.14 for π and round to the nearest tenth.

please help!! will mark brainliest!!

Answers

First blank: 230

Second blank: 200.6

Third blank: 113.4

The area of shaded and unshaded sector is 1.13 × P^2 and 1.99 × P^2.

How to find the surface area of some object?

Find the area that its outer surfaces possess. Sum of all those surfaces' area is the surface area of the considered object.

Suppose that radius of the considered sphere is of 'r' units.

Then, its surface area S would be:

[tex]S = 4\pi r^2 \: \rm unit^2[/tex]

We are given that;

P is the center, angle LPJ=130degree

Now,

To find the approximate values, we can use 3.14 for π and round to the nearest tenth:

Area of shaded sector = (13π/36) × P^2

≈ (13 × 3.14/36) × P^2

≈ 1.13 × P^2

Area of unshaded sector = (23π/36) × P^2

≈ (23 × 3.14/36) × P^2

≈ 1.99 × P^2

Therefore, by the surface area the answer will be 1.13 × P^2 and 1.99 × P^2.

Learn more about surface area here:

https://brainly.com/question/15096475

#SPJ2

Can someone help me please?

Answers

I think the mean is 15

Find the perimeter of the
polygon if ZB = ZD.

Answers

Answer:

Step-by-step explanation:

5+5+6+6+7+7+6+6=48cm

Someone plz help me!

Answers

Answer:

srry if you still need this asnwer but here you go my grades

Step-by-step explanation:

HELPPPPP
CAN ANYBODY TELL ME IF 3.375 IS THE ANSWER

Answers

yeah i think that’s right im sorry if not

Find the value of x.

Answers

Answer:

16

Step-by-step explanation:

2x8

Hello :”) how to do 5(a)?

Answers

Answer:

[tex] f'(x) = \frac{sin( \frac{1}{x}) }{ {x}^{2} } [/tex]

Step-by-step explanation:

Please see the attached picture for the full solution.

• Differentiate cosine

• Then multiply it with the derivative of the term inside the bracket

im not good at percentages

Answers

Answer:

D. 16

Step-by-step explanation:

You first need to find the total percentage who liked vanilla, then subtract it from the total percentage of chocolate.

To find the total of those who liked vanilla you would have to add the given percentages and then subtract that from 100.

Chocolate: 42%

Strawberry: 18%

Coffee: 14%

Vanilla: x

42 + 18 = 60 + 14 = 74%

100 - 74 = x

Vanilla = x = 26%

To find how many more like chocolate than vanilla, you would subtract the two percentages.

Chocolate: 42%

Vanilla: 26%

42 - 26 = 16

Melissa works at Best Buy and gets paid $250 a week plus
commission. She earns $15 for every cell phone she sales.
Which function can be used to find t, the amount of money
Melissa will receive on her weekly paycheck for selling n
number of cell phones?
A.
t=250x + 15
C. t = 15x
B.
t = 15x + 250
D. Not Here

Answers

Answer:

option b is correct

I hope it helps


Question 2
Use pythagroean theorem to find the value of the missing side. Leave answers in simplest radical form.

Answers

Answer:

C

Step-by-step explanation:

a^2 + 49 = 169

     -49          - 49

        a^2 = 120

√120 = 2√30

please help me i am begging you. its one question. I WILL GIVE BRAINLIEST!!!!!

Answers

Answer:

3og -5 “times (x)” 3

Step-by-step explanation:

(3og minus 5) times 3

I don’t have time to explain but I hope this helps, I’m in a rush rn I got to do something

[tex]23 1/5 in to percentAGE

Answers

20% just divide 1/5 bro I hate the 20 character rule

Identify the set as finite or infinite
{1 1/4, 1/16, 1/64,,,}

Answers

Answer:

??????

Step-by-step explanation:

What that does not make sence at all

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