MATHEMATICS MIDDLE SCHOOL

The second of two numbers is 5 more than twice the first. their sum is 80. find the numbers

Answers

Answer 1
Answer:

Answer:

Step-by-step explanation:

x = first number, y = second number

x + y = 80

y = 2x + 5

x + 2x + 5 = 80

3x + 5 = 80

3x = 80 - 5

3x = 75

x = 75/3

x = 25

y = 2x + 5

y = 2(25) + 5

y = 50 + 5

y = 55

so ur numbers are : 25 and 55 <==

Related Questions

A jar contains 26 fluid ounces of spaghetti sauce how many cups of spaghetti sauce do 4 jars contaon
What is the approximate volume of a cone with a height of 11 ft and radius of 3 ft?Use 3.14 to approximate pi, and round answers to two decimal places if necessary. Actually ttype in 3.14 don't use the symbol because it adds more numbers___ft3 don't use this do 3.14
if the diameter of a wheel is 5ft about how many miles does the wheel travel if it makes 134 revolutions? use 22/7 for pi
In a direct variation, y=39 when x=3. Find the value of y when x=2
What is 1/10 of 3,000

What is 6.46,6.41 and 4.6 in order from least to greatest

Answers

It will be 4.6 , 6.41 and 6.46 because it asking u write the number smallest to greatest
(all you need yo do with 4.6 is put a zero at the end.)    4.6(0), 6.41, 6.46

AC = 4, AE = 7, AD = 10, what is the length of AB?


PLZ HELP

Answers

The above answer is not correct! The correct way to solve this is to look at the ratio of the sides as these are similar triangles. We are told that AC = 4 and AE = 7. That means that the side AC has been multiplied by 7/4 in order to become the length AE. Because these are similar trianges, all the sides must be multiplied by the same amount - therefore the side AD is equal to the length of AB multiplied by 7/4. Because we are given the side AD and need to find AB, we simply run the process in reverse like so:
If AD = 7/4 x AB:
AB = 4/7 x AD
AB = 4/7 x 10
AB = 40/7 (5.71 as a decimal)
Hope I helped :))

Answer:

The length of AB is 1 3/7 .

Hugh made a recipe that yields 8 and 1 over 2 cups. If each serving is 1 over 4 cup, which expression will help Hugh determine the number of servings his recipe will yield?8 and 1 over 2 • 1 over 4
8 and 1 over 2 + 1 over 4
8 and 1 over 2 – 1 over 4
8 and 1 over 2 ÷ 1 over 4
explain this please

Answers

Answer:

Its D, 8 and 1 over 2 ÷ 1 over 4

Step-by-step explanation:

→ A recipe yields = 8(1/2) cups.

And,

→ Each serving is = (1/4) cups.

So,

→ The number of servings his recipe will yield = (Total recipe yields) ÷ (Each serving) = 8(1/2) ÷ (1/4) = 8 and 1 over 2 ÷ 1 over 4 (Option D).

Answer:

The answer is D.

Step-by-step explanation:

I hope this helps, Have a great day!!!!

1/6% of 295 help ASAP

Answers

Answer: 0.49

Step-by-step explanation:

1/6% X 295 = 0.00167 X 295

= 0.492~0.49

Z=2+5i. Convert the complex number to trigonometric form.

Answers

Answer:

z = √(29) ( \cos \: 68 \degree + i \sin 68 \degree)

Step-by-step explanation:

The trigonometric form of complex numbers is when the complex number is in polar form.

This is given by

z = r( \cos \theta + i \sin \theta)

where the modulus r is given by

r = \sqrt{{2}^(2) + {5}^(2) }

r = √(4 + 25)

r = √(29)

and the argument is given by

\theta = \tan \:^( - 1) ( (y)/(x))

\theta = \tan \:^( - 1) ( (5)/(2))

\theta = 68 \degree

The trigonometric form then becomes:

z = √(29) ( \cos \: 68 \degree + i \sin 68 \degree)

This scatter plot shows the relationship between students’ scores on the first exam in a class and their corresponding scores on the second exam.Which of the following is the best estimate of the average change in the score on exam 2 associated with a 1 point increase on the score on exam 1?

A) 1/4 point
B) 1/2 point
C) 1 point
D) 2 points

Please explain your answer

Answers

Answer:

D) 2 points

Step-by-step explanation:

Compare a couple of points in the clumps of points and that is your answer
Other Questions
What algebraic expression represents the phase “two times the quantity of a number minus 12”
How many solutions does the following equation have? 13(y+3)=13y+39
Do natural numbers have multiplicative inverse
Which is greater 0.4 or 0.32