A number is 7 more than 5 times another number and their difference is 78 Find the numbers

Answers

Answer 1

Answer:

n = 95.75

m = 17.75

Step-by-step explanation:

n = one number

m = another number

System of Equations:

n = 7+5m

n - m = 78

Substitution Method:

7+5m - m = 78

4m + 7 = 78

4m = 71

m = 17.75

n - 17.75 = 78

n = 95.75


Related Questions

If jerome has 3 watermelons and 4 oranges, how fast was the train to his right going

Answers

Answer:

70 km/h

Step-by-step explanation:

Not enough info to answer this question but I’ll say 75

How would you solve y=3/4x+9

Answers

Answer: i took a screen shot of the answer hope this helped

plz make brainly

Step-by-step explanation:

To add the fractions 3/4 and 7/12 what must be done first?

A. reduce the fractions to lowest terms
B. change to improper fractions
C. make the numerators the same
D. find a common denominator

Answers

Answer is. D Find a common denominator

A rectangular prism has a length of 10 inches, a width of 2 inches, and a height of 5 inches. What is the surface area of the prism?

Answers

The surface area of the prism is 160 inches

Answer:

5inches

sana makatulong ako

PLZ HELP What is the mode interval for the histogram? Science Test Scores Frequency No Бел о об - 1 50-59 60-69 70-79 80-89 90-100 Scores (out of 100) 0 80 - 89 O 50 - 59 O 10 90 - 100​

Answers

Answer: You are correct. The mode is between 90 and 100

This is because the tallest bar corresponds to this interval. The mode is the most frequent value.

Step-by-step explanation:

i am not sure but i hope this can help you

A man bought some story books for 5 Ghana Cedis each from a bookshop
15 of the books got missing. He then sold the rest at 8 Ghana cedis each and made a profit of 90 Ghana cedis. How many books did he buy?

Answers

Answer:

70

Step-by-step explanation:

Let the no of books bought be x

The cost price of 1 book is 5x

No of the missing book is 15

The remaining book is x-15

The selling price of 1 book is 87

Selling price of (x-15) book is 87

Hence the number of books can be calculated as follows

8(x-15)-5x= 90

8x-120-5x= 90

8x-5x= 90+120

3x= 210

x= 210/3

= 70

Hence the number of books bought is 70

Please help. How many play sports year round? ​

Answers

3 because 2 of them played during spring and winter. 6 of them played during spring and fall. and 13 played during fall and winter. but your asking for year round which is all three seasons meaning only 3 played year round.

Why is 3 x 1/10 less than 3 x 10?

Answers

Answer:

The value of 1 tenth is less than the value of 1 ten.

Step-by-step explanation:

Answer:

Because 3 x 1/10 = 3/10

whereas 3 x 10 = 30

and 3/10 < 30

Also b/c 1/10 < 10 and they are multiplied by the same value (3)

Step-by-step explanation:

I need help on this ASAP

Answers

Answer:

That other person was such a troll but it by 43! Could you please mark me branllest? Only if you want to :)

Step-by-step explanation:

which one is correct?
find the one correct answer their is only 1 answer...

Answers

Answer:

8 students

Step-by-step explanation:

Number of people who voted for dogs:

12

Number of people who voted for fish:

4

We find the difference between the 2:

12 - 4 = 8

Answer:

8 students voted for dogs than fish.

Step-by-step explanation:

so if we look at the graph 12 students voted for dogs and 4 students voted for fish. so now we have to subtract both of these numbers to find how many more students voted for dogs than fish.

12 - 4 = 8

Have a nice day!

This is my 200th answer!!!

you have three sides and three angles what am i​

Answers

The answer is You are a triangle

Abdullah expands (x - 3)2 and gets the answer x2 - 9. Describe what he has
done wrong.

Answers

Answer:

He squared the numbers inside without following the appropriate rule

Step-by-step explanation:

what he should have done

[tex](x-3)^2\\= x^2 - 2 *x*3+3^2\\= x^2-6x+9[/tex]

Helppp pleaseeee I really need help

Answers

Answer:

Step-by-step explanation:

S

Step-by-step explanation:

[tex] = \frac{(2c {}^{2} + c - 2) }{(c + 1)} \\ rationalise \: the \: denominator \\ = \frac{(2 {c}^{2} + c - 2)(c - 1)}{(c + 1)(c - 1)} \\ = \frac{(2 {c}^{3} - 2 {c}^{2} + {c}^{2} - c - 2c + 2) }{( {c}^{2} - {1}^{2} )} \\ = \frac{(2 {c}^{3} - {c}^{2} - 3c + 2 )}{( {c}^{2} - 1) } [/tex]

PLEAASE HEELP! Will mark brainly!!!

Answers

Please repost... picture is all black

My brainy brother and sister added their ages together and got 15. When they multiplied their ages together, they got 54. How old is the older one between the two of them?

Answers

Given:

Sum of ages of brother and sister = 15

Product of their ages = 54

To find:

How old is the older one between the two of them?

Solution:

Let x be the age of brother and y be the age of sister.

Sum of ages of brother and sister = 15

[tex]x+y=15[/tex]

[tex]x=15-y[/tex]                ...(i)

Product of their ages = 54

[tex]xy=54[/tex]

[tex](15-y)y=54[/tex]                [Using (i)]

[tex]15y-y^2=54[/tex]

[tex]0=54-15y+y^2[/tex]

Splitting the middle term, we get

[tex]54-15y+y^2=0[/tex]

[tex]54-9y-6y+y^2=0[/tex]

[tex]9(6-y)-y(6-y)=0[/tex]

[tex](6-y)(9-y)=0[/tex]

Using zero product property, we get

[tex](6-y)=0\text{ and }(9-y)=0[/tex]

[tex]y=6\text{ and }y=9[/tex]

If [tex]y=6[/tex], then using (i), we get

[tex]x=15-6[/tex]

[tex]x=9[/tex]

If [tex]y=9[/tex], then using (i), we get

[tex]x=15-9[/tex]

[tex]x=6[/tex]

Therefore, the age of older one is 9, the age of younger one is 6 and the difference between their ages is 3.

I need help on math plz no bots

Answers

2nd option sry i’m wrong:)

Solve.
a-5/a+4=5/4

a=0
a=-1
a=-9
a=-40

Answers

Answer:

-1

Step-by-step explanation:

hzhsuxbsjsisnduxidnwhdicjdbe


15 is which percent of 30?
A. 450%
B. 200%
C. 50%
D. 1/2%
E. 2%

Answers

Answer:

answer: 50%

Step-by-step explanation:

The answer is 50% because 15 is half of 30 because 15 + 15 = 30 so 15 is half of 30 50%

Answer is C. 50%
The answer is C because
30-15= 15

What number is correctly graphed on the number line below?

Answers

Answer:

wdym they all are graphed correctly its a number line.

Step-by-step explanation:

2
A pack of 5 of board games costs $75.
If there is a direct proportion between the price (y) and number of board games (2), which equation represents the
situation?
y = 75.2
By = 52
C y = 2
Dy = 152

Answers

Answer:

one board game cost 15 dollars

75/5=15

15y

y = number of board games and 15= the price of each board game

so to calculate any number of board games bought just input the number of board games bought for y in the expression 15y and you will get the price.

Step-by-step explanation:

Choose values for A and B and use them to verify the product shown
(5a+b)(a-6b) = 5a^2 - 29ab -6b^2

Answers

Answer:

let A and B be 2 and 3

Step-by-step explanation:

then substitute:

(5a+b)(a-6b) = 5a^2 - 29ab - 6b^2

(5×2+3)(2-6×3) = 5×2^2 - 29×2×3 - 6×3^2

13 × (-16) =20-174-54

-208 = -208

I need help cand someone help me find this answer ​

Answers

Answer:

725.7 m²

Step-by-step explanation:

A=2πrh

r=16 1/2 ÷ 2 = 8 1/4

A= 2π(8.25)(14)=725.7

The midpoint of chord AB is ( , ), and the slope of chord AB is

Answers

Answer:

See solution below

Step-by-step explanation:

Let the coordinate's of A and B be (1, 0) and (2,4) respectively

midpoint M (X, Y) = [(x1+x2/2, y1+y2/2)]

X = x1+x2/2

X = 1+2/2

X = 3/2

X = 1.5

Y = y1+y2/2

Y = 0+4/2

Y = 4/2

Y = 2

Hence the required midpoint (X, Y) is (1.5, 2)

Slope m = y2-y1/x2-x1

m = 4-0/2-1

m = 4/1

m = 4

Hence the slope is 4

Note that the coordinates are assumed but the same calculation can be employed for any other coordinates

HELP PLS!!!

Consider the function f(x). Select all of the following that include a horizontal compression of f(x).
A) 2f(x)
B) f(3x)
C) -f(x)+1
D) f(0.4x) - 1
E) f(6x) +9
F) -f(0.12x)

Answers

Answer: B, E

Step-by-step explanation:

Henry gross pay is $4000 a month. If he saves $500 of his pay, what percent of his pay does he save?

Answers

Answer:

12.5%

Step-by-step explanation:

big brain

Toby and Ahmed are eating pizza. Toby eats 1/2 of the pizza and Ahmed eats 1/4 of the pizza. How much of the total pizza have they eaten? 1 point

Answers

Answer:they have eaten 3/4 of the total pizza

Step-by-step explanation:

Let the whole pizza =1whole

Amount eaten by Toby =1/2

Amount eaten by Ahmed =1/4

Total Amount eaten by both of them =1/2 +1/4 =  2+1/ 4=3/4

Therefore, they have eaten 3/4 of the total pizza

the mean of 5 numbers is 8.
one more number is added to the group.
the mean of the numbers is 9.
what number was added to the group​

Answers

Answer:

14

Step-by-step explanation:

Sum of the first five numbers = 40

The sum of the six numbers should equal 9 x 6 = 54

So, you would do 54 - 40 = 14

Hope that helps! :)

-Aphrodite

You are at a bookstore and you are allowed to buy 9 books. You have already selected 3 books. Find the possible amount of books you can still select.

Answers

Answer:

6

Step-by-step explanation:

9 - 3 = 6

find the distance between the points(-3,4)and(4,0)​

Answers

Answer:

[tex] \sqrt{65} [/tex]

SOMEONE PLEASE HELP ME WITH THIS ILL GIVE YOU BRAINLY IF YOU GET IT RIGHT PLEASE !!!!

Answers

show me the first parts of the question
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